Ecoboost Performance Forum

General Category => How To Articles => Topic started by: EcoPowerParts on May 08, 2013, 12:20:33 PM

Title: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 08, 2013, 12:20:33 PM
I just converted my factory BoV to FTA on my Flex today.
What does this do for you?
Nothing but making a PFFFFT noise when you lift the throttle under boost.
Is there any downsides to this?
No, the car is speed desnsity so releasing the air from the turbos to atmosphere when the blow off valves open does not negatively impact the tune, factory or modified.

BTW, I couldn't find 1" vacuum "nipples" to block off the factory tubing so I went to Home Depot and searched around, found some 1" rubber chair leg "tips" to use, worked pretty good so far.

Front Blow off Valve and blocked off tube

(https://lh4.googleusercontent.com/-XkDguS1Ulm4/UYqehi93LgI/AAAAAAADKrY/UpIH5XYHcPw/w1422-h802-no/2013-05-08+11.28.15.jpg)

Another shot of the factory Blow off Valve with the return tube removed - vent to atmosphere
(https://lh4.googleusercontent.com/-5yQRjDjZF2U/UYqeo0C-u9I/AAAAAAADKrg/O8an6wdzySs/w1422-h802-no/2013-05-08+11.28.20.jpg)

Close up of rear portion of intake tubing with blow off valve return hose removed and blocked off. For me easiest way to get to this area and remove tubing was to remove the intake tubing and rotate to access the clamp that held the tubing onto the blow off valve.
(https://lh3.googleusercontent.com/-xO6WwjlGq1s/UYqewLDCIOI/AAAAAAADKro/OcuKdDGQA6w/w1422-h802-no/2013-05-08+11.28.43.jpg)


Rear Blow off Valve
(https://lh5.googleusercontent.com/-j_lPOzqXqcQ/UYqe--n41aI/AAAAAAADKr4/3btlDb3iATM/w452-h801-no/2013-05-08+11.29.18.jpg)


Complete turbo to intercooler pipe with Blow off Valves circled
(https://lh6.googleusercontent.com/-tFF3siTvHIk/UYqfGYfbfAI/AAAAAAADKsA/s9fbgtEJs-g/w452-h801-no/2013-05-08+11.31.32.jpg)

EDIT: Found some rubber caps to use instead of rubber chair leg bottoms
http://www.mcmaster.com/#92805K28 (http://www.mcmaster.com/#92805K28)

Updated pictures with the new caps on from mcmaster - didn't know they were going to be red :(
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: PopolZ on May 08, 2013, 02:33:52 PM
On the SHO we already have the PFFFFT because of the "noise generator". Mine is sitting in the trunk since it's been replaced with an HKS SSQV III BOV.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 09, 2013, 05:14:23 AM
I just disconnected mine last night and took a trip around the block to make sure it didn't have any issues before I started buying intake parts.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 09, 2013, 07:19:31 AM
WHY?

"What difference does it make?"  (H. Clinton)  LOL :bangin:
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 09, 2013, 07:34:02 AM
On the SHO we already have the PFFFFT because of the "noise generator". Mine is sitting in the trunk since it's been replaced with an HKS SSQV III BOV.

I just looked up an article on the BoV installation on your guys car.
So, now I'm looking at buying a SHO intake tube that goes from TB to IC and then have Paul make a tube that replaces the SHO/Flex back turbo to IC tube with no holes in it for BoV.
This way an aftermarket BoV can be added to the intake tract and the factory BoV can be removed entirely.
We're looking at a way to make a plug and play resistor to replace the factory BoV as well so no CEL

Hmm that part is AA5Z-6F073-B - $110... More research to do :)
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 09, 2013, 09:48:00 AM
WHY?

"What difference does it make?"  (H. Clinton)  LOL :bangin:

The reason I'm doing it is to make super shorty intakes, basically just filters on the turbos. I don't care about IAT, only boost temps. This will simplify and eliminate a lot of hardware real estate under the hood for when I go liquid to air intercooler.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 09, 2013, 09:56:37 AM
WHY?

"What difference does it make?"  (H. Clinton)  LOL :bangin:

The reason I'm doing it is to make super shorty intakes, basically just filters on the turbos. I don't care about IAT, only boost temps. This will simplify and eliminate a lot of hardware real estate under the hood for when I go liquid to air intercooler.
Keep me in the loop on this, I'm looking at doing that after I get fueling/turbos installed in a month or two.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 09, 2013, 10:28:00 AM
Flex Ecoboost - BoV set to VTA (http://www.youtube.com/watch?v=eU1uj_Xlh4U#ws)
Video
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 09, 2013, 10:43:58 AM
WHY?

"What difference does it make?"  (H. Clinton)  LOL :bangin:

The reason I'm doing it is to make super shorty intakes, basically just filters on the turbos. I don't care about IAT, only boost temps. This will simplify and eliminate a lot of hardware real estate under the hood for when I go liquid to air intercooler.
Keep me in the loop on this, I'm looking at doing that after I get fueling/turbos installed in a month or two.

Sure will. Do you know the turbo's factory inlet diameter? Looks to be around or just under 2 inches but I can't tell for sure without disassembly.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 09, 2013, 10:49:03 AM
I don't think even 2", I'll have my stock-upgraded turbos back soon I'll take a measurement. In discussing the factory IC, I think I can pick up another 30+HP just by going with a water to air IC, I've been considering installing the heat exchanger in place of the factory IC as there will be space there, just need to find a core that is sized appropriately for that.
I'm going to be putting my water resevior in the rear spare tire area, I'm going to have a custom nitrous tank/water resevior built for back there when I do the IC upgrade.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 09, 2013, 10:57:44 AM
Since I don't go full bore racing with mine, I won't even have a remote resevoir for mine. Just the largest h\e I can fit and a small overflow bottle for the pressure release lid.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 09, 2013, 11:57:54 AM
Don't quote me, but I think I remember Darreli saying the inlet is        1 1/2" as the Hennessey CAI system he bought a couple years ago didn't have a reducer/taper and just went from 2" to 1 1/2".
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 09, 2013, 12:01:44 PM
With your nitrous system you might get that extra HP, but my MCT temps running 75% methanol went below outside temp, so not sure how much cooler one could go with liquid IC, unless the liquid would be at a temp much below ambient.  Guess one could cool it with A/C system..
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 09, 2013, 03:28:42 PM
Another video
Another video of factory BoV VTA (http://www.youtube.com/watch?v=pop9zYQdnw4#ws)
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 09, 2013, 03:48:01 PM
I would do this only if it will make "LOUD FART SOUNDS"... :biggrin:
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: PopolZ on May 09, 2013, 04:10:05 PM
here's a dark video of my turbo whine, annoying exhaust and bov sound.

[youtube]Tpp9lT4e_x4[/youtube]
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 09, 2013, 06:36:17 PM
With your nitrous system you might get that extra HP, but my MCT temps running 75% methanol went below outside temp, so not sure how much cooler one could go with liquid IC, unless the liquid would be at a temp much below ambient.  Guess one could cool it with A/C system..

Biggest thing I've had with previois air/water was less pressure drop across the core.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 10, 2013, 09:43:08 AM
Biggest issue at the strip is heat sink, especially when you sit for an hour between runs in a stop and go linei.  Would a water cooled intercooler help this?  My MCT temps do start to rise again when I'm above 90 mph but they never came close to the starting MCT temp, even when I was making back to back runs. 
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 10, 2013, 10:49:31 AM
Yeah time to heat soak is a LOT longer on air to water than air to air. There were times in the winter where my boost temps were below iat after a 20 minute drive to work in my MS3.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 10, 2013, 10:51:37 AM
If you go with an interior 1 gallon+ resevior it makes even more difference as the hot water goes into the resevior and is replaced with cooler water.
I'm looking forward to that portion of my build once I finish these fuel upgrades.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 10, 2013, 05:14:00 PM
Yup, and with a resevoir you can add ice too for race day!
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 10, 2013, 10:24:35 PM
Optional part # if you want to add filtering to your BoV
I believe these will work, will need to measure but tomorrow I'll be at a wrestling tourney from 6am until 9pm so it'll have to be Sunday:
http://www.knfilters.com/search/product.aspx?prod=62-1370 (http://www.knfilters.com/search/product.aspx?prod=62-1370)
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bnoon on May 13, 2013, 05:46:56 AM
Yeah I have found several of those. The 1 inch ones will fit snug since that flange is 1 and an 1\8 inch in size. The nipple on the inlet side is 1 inch I believe.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoBrick Bob on May 13, 2013, 08:17:37 AM
I bought something similar at local Auto store for the front valve cover (breather).  After 15K, it was gooey with oil.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on June 26, 2013, 10:52:29 AM
Added some part #'s and pictures of updated 1" silicone covers for intake tube.
Title: Re: SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: adelsin on June 27, 2013, 10:09:12 AM
You know... Ive never heard my PFFFTTT or my whines for that matter. I've seen torque as high as 13psi boost. Not sure if thats total or per turbo.

Sent from my GT-I9100 using Tapatalk 2

Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FracaSHO on March 29, 2014, 07:10:49 PM

Added some part #'s and pictures of updated 1" silicone covers for intake tube.

BOV are officially VTA!  They sound a lot better in person than on a video. And thanks for the great find. Especially great for me since my company has an account at McMaster and they deliver to us. I'm not feeling the red though. I might try plasti dipping them black. Will update if and when I do.


Brad
2010 SHO with PP
MyCal LMS Stage 3
Sent from my iPhone
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 05, 2014, 03:49:37 PM

Added some part #'s and pictures of updated 1" silicone covers for intake tube.

BOV are officially VTA!  They sound a lot better in person than on a video. And thanks for the great find. Especially great for me since my company has an account at McMaster and they deliver to us. I'm not feeling the red though. I might try plasti dipping them black. Will update if and when I do.


Brad
2010 SHO with PP
MyCal LMS Stage 3
Sent from my iPhone
I used them too, but I'm with you... what's up with the red... Do you think plastidip will take the heat?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: glock-coma on April 05, 2014, 06:39:45 PM
I've been VTA for about a year now, but now that I'm tuned it sounds completely different. Sometimes its a ppsshhh sound but now its almost like a  whistle. Like in this video.
Unleashed Tuning's 2010 SHO Turbo BOV: http://youtu.be/v4Nz2MeLA1E

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Dave_Posts on April 05, 2014, 06:42:46 PM
I could hear them with the Unleashed tune even when they were still tied in. 
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 05, 2014, 07:16:05 PM
I've been VTA for about a year now, but now that I'm tuned it sounds completely different. Sometimes its a ppsshhh sound but now its almost like a  whistle. Like in this video.
Unleashed Tuning's 2010 SHO Turbo BOV: [url]http://youtu.be/v4Nz2MeLA1E[/url] ([url]http://youtu.be/v4Nz2MeLA1E[/url])

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....



Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE hotpipes... hopefully by Wednesday.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on April 05, 2014, 07:20:48 PM


Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 05, 2014, 08:46:40 PM


Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on April 05, 2014, 08:55:33 PM


Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.

Ok ya must have had an old fart brain fart moment when you said  " downpipes " earlier .   L O L
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 05, 2014, 09:10:19 PM


Cool.... can hardly wait to see if I get the same sound with the double sized VTA opening on the PPE downpipes... hopefully by Wednesday.

HUH ???  ???  In the dark on that one ... 

The factory BoV set-up on the hotpipes has exactly twice the vent area (two vent holes for each BoV)... more opening size, same pressure and volume.. may be less whistle... dunno 'til i get my SHO back Tues evening and then get the tune loaded.

Ok ya must have had an old fart brain fart moment when you said  " downpipes " earlier .   L O L
:homer:
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: JimiJak on April 07, 2014, 07:00:55 AM
Officially joined the VTA crew yesterday, took about 10min. Decided to go the ole' 1" rubber chair foot route for now.

Also, found a couple different ideas out there to 'enhance' the blow off noise. GoFastBits offers a trumpet that attaches to their blow-off valves (one for 13psi+ and one for 13 and under)...makes me wonder if something like this could be attached to the 1" port to make it louder or more 'whistley'.
(http://www.gofastbits.com/templates/gofastbits/parts_for_joomla/part_images/resized/5702.jpg)

Anyone interested in something like this? or too ricey?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: APsychoOne on April 07, 2014, 08:04:08 AM
I was wondering if anyone offered anything like that to "enhance" the sound.  Granted, it's just noise fluff.  But you can barely hear it outside the car.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Wilson on April 11, 2014, 02:01:10 PM
Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: crash712us on April 11, 2014, 02:09:34 PM

Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?
you got it!


Sent from my iPhone using Tapatalk
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 11, 2014, 02:11:18 PM
Dumb question, but I just want to make sure I'm doing this right (planning on knocking it out next weekend when I'm back in town). The rubber chair tips go on the returns and the (optional) K&N filters would go on the blow off valve's, correct?

I view capping the exit on the BoVs as optional.  I do have EBPF hotpipes.  So appearance was good and I get a more audible Pffft, no turbo whine even running LMS v8.  I do not have any evidence of oil, etc. under hood or or on/in the BoV outlet ports (polished bright aluminum)... I question restricting thes ports personally.  So I think optional for the filters.
BTW... Another reason I am researching utility of a catch can again before I install it.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Wilson on April 11, 2014, 02:40:09 PM
I view capping the exit on the BoVs as optional.  I do have EBPF hotpipes.  So appearance was good and I get a more audible Pffft, no turbo whine even running LMS v8.  I do not have any evidence of oil, etc. under hood or or the BoV outlet ports (polished bright aluminum)... I question restricting thes ports personally.  So I think optional for the filters.
BTW... Another reason I am researching utility of a catch can again before I install it.

That's why I wanted to confirm the K&N piece as well.  I don't want to just leave the blow off valves sitting there wide open, but I wasn't sure if the K&N filters would restrict the ability to dump pressure.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: JimiJak on April 11, 2014, 03:21:17 PM
...I don't want to just leave the blow off valves sitting there wide open...

Out of curiosity, why not?

When the valve is closed, the opening is just a port; it doesn't go anywhere. When the eBOVs are open there is positive pressure, so my understanding is that there's really no way for anything to enter the system past the eBOVs even without a filter.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 11, 2014, 03:23:05 PM
I view capping the exit on the BoVs as optional.  I do have EBPF hotpipes.  So appearance was good and I get a more audible Pffft, no turbo whine even running LMS v8.  I do not have any evidence of oil, etc. under hood or or the BoV outlet ports (polished bright aluminum)... I question restricting thes ports personally.  So I think optional for the filters.
BTW... Another reason I am researching utility of a catch can again before I install it.

That's why I wanted to confirm the K&N piece as well.  I don't want to just leave the blow off valves sitting there wide open, but I wasn't sure if the K&N filters would restrict the ability to dump pressure.

I can't think of a way to even test it... so on the hotpipes I had the number of ports doubled... the actual valve seat and BoV plunger  are visible... No problems for 1800 miles or even when I had the engine detailed and a pressure washer was used.  I have the concern also... just don't know which is best.... need to think of a way to prove it one way or the other.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Woody on April 23, 2014, 09:28:38 AM
As another alternative to those interested, I only disconnected from the BOV side and left the intake side of the tubes attached.  I then found the appropriate size "plug", which turned out to be a 1/2" PVC Cap.  I pushed the caps into the tubs and pulled the clamp back up over the caps.  Seems to be working well so far, and should be easier to reattached to stock if I want to for warranty work.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on April 23, 2014, 10:12:35 AM
As another alternative to those interested, I only disconnected from the BOV side and left the intake side of the tubes attached.  I then found the appropriate size "plug", which turned out to be a 1/2" PVC Cap.  I pushed the caps into the tubs and pulled the clamp back up over the caps.  Seems to be working well so far, and should be easier to reattached to stock if I want to for warranty work.

Definitely quick and easy!

My dealer considers it "air in - air out" as I left the EPP hotpipes (VTA and delete the noisemaker) in place.  No problems.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 68_GT on April 23, 2014, 01:22:16 PM
ultimate BOV mod.....

Duck call Blow off valve (http://www.youtube.com/watch?v=IdPJH8rUb7E#)

Mazda Miata Mx5 ( Duck Call Blow off valve ) (http://www.youtube.com/watch?v=P8DAAF9KHyM#)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 68_GT on May 01, 2014, 10:41:27 AM
did mine this morning with these stoppers for $4.00 ea from Advance Auto. The front BOV off definately audible not too loud. Both off a little too loud for my liking. The rear only off maybe just right.

*****IF YOU DO IT THIS WAY.....use your common sense and DO NOT overtighten these plugs or it could split the intake pipe especially since there's a seam on the plastic that runs though these plastic ports. I turned mine about 1.5 full turns and it's plenty snug to not come out. 1 turn may be plenty depending on how snug it is when it goes in. Enjoy....

(http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg) (http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg.html)

(http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg) (http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg.html)(http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg) (http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg.html)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on May 01, 2014, 10:48:26 AM
did mine this morning with these stoppers for $4.00 ea from Advance Auto. The front BOV off definately audible not too loud. Both off a little too loud for my liking. The rear only off maybe just right.

*****IF YOU DO IT THIS WAY.....use your common sense and DO NOT overtighten these plugs or it could split the intake pipe especially since there's a seam on the plastic that runs though these plastic ports. I turned mine about 1.5 full turns and it's plenty snug to not come out. 1 turn may be plenty depending on how snug it is when it goes in. Enjoy....

([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg.html[/url])

([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg.html[/url])([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg.html[/url])


Pretty slick solution for sure and much easier to get !
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on May 01, 2014, 11:00:42 AM
did mine this morning with these stoppers for $4.00 ea from Advance Auto. The front BOV off definately audible not too loud. Both off a little too loud for my liking. The rear only off maybe just right.

*****IF YOU DO IT THIS WAY.....use your common sense and DO NOT overtighten these plugs or it could split the intake pipe especially since there's a seam on the plastic that runs though these plastic ports. I turned mine about 1.5 full turns and it's plenty snug to not come out. 1 turn may be plenty depending on how snug it is when it goes in. Enjoy....

([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/AC59CE51-1C9D-452C-9FD3-EBEA0E95205B_zpsqu0hgks7.jpg.html[/url])

([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/3D442A2D-23CE-4CB4-B261-A31D17FA18FF_zpsg3ezyxay.jpg.html[/url])([url]http://i109.photobucket.com/albums/n62/68_GT/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg[/url]) ([url]http://s109.photobucket.com/user/68_GT/media/car%20stuff/2013%20SHO/862A079A-06B2-4277-B388-EFE7AE7AF1AD_zpscxluhsrm.jpg.html[/url])


It does look sharp!   

One question 68:

If the nut comes loose can the bolt fall out?…   Obviously this would be bad in a turbo feed line…. I just don't know the expansion plug you used.

I was going to use something like this for my RX catch can install, but Tracey told me they just use drilling to eliminate the chance of solid objects in the intake.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on May 01, 2014, 11:05:03 AM
BigMac ....... 68_GT  ........ Locktite
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 68_GT on May 01, 2014, 11:17:15 AM
good point guys. I'll pull it out drill the bolt and put a cotter pin in end today !
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on May 01, 2014, 11:20:14 AM
good point guys. I'll pull it out drill the bolt and put a cotter pin in end today !

There's the wise solution!  :thumb:  … Good thinking 68!  :beer2:
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 68_GT on May 02, 2014, 06:33:15 AM
I took the plugs off yesterday too much rish and the bolt was too short with that nut on to have anywhere for a cotter pin to go through it. Maybe if I can find a thinner nut I can pull it off.

Weird thing is the car seemed a littel down on power while venting out ??? Probably beasue I was listening to the new noises I guess ?? Anyone else ever think this ? make any sense at all ???
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: crash712us on May 02, 2014, 07:23:00 AM
I'd drill thru nut and bolt or find a small castle nut.


Sent from my iPhone using Tapatalk
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on May 02, 2014, 07:23:43 AM
I took the plugs off yesterday too much rish and the bolt was too short with that nut on to have anywhere for a cotter pin to go through it. Maybe if I can find a thinner nut I can pull it off.

Weird thing is the car seemed a littel down on power while venting out ??? Probably beasue I was listening to the new noises I guess ?? Anyone else ever think this ? make any sense at all ???

Maybe since it's vacuum (intake) tubing the silicon cap is a better idea... I have had Locktite fail on  firearm scopes occasionally, so I personally wouldn't trust it... not even the red version... consequences of failure are too high (new turbos).

Can't speak to the real world performance... times, etc.... but no dyno difference when VTA. 
Maybe some prevention of exhaust gas recycling getting concentrated a bit from PCV system by not recirculating blow-off to turbo feed piping.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 68_GT on May 02, 2014, 11:44:00 AM
yeah a large vaccum cap is probably the best idea I just couldn't find one big enough. YET.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: EcoPowerParts on May 02, 2014, 12:14:50 PM
No power difference VTA, maybe you unplugged something or didn't tighten a tube back up and you have a boost leak.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on May 02, 2014, 01:03:44 PM
yeah a large vaccum cap is probably the best idea I just couldn't find one big enough. YET.


http://www.mcmaster.com/#silicone-caps/=rslats (http://www.mcmaster.com/#silicone-caps/=rslats)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on May 02, 2014, 02:02:29 PM
yeah a large vaccum cap is probably the best idea I just couldn't find one big enough. YET.



Slightly used for free , if you want them PM me  ...

 http://www.mcmaster.com/#silicone-caps/=rslats (http://www.mcmaster.com/#silicone-caps/=rslats)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on May 02, 2014, 02:37:24 PM
I used dorman 3/4 vacuum end cap,looks very thick and durable,as you can see the MC is very thin.The dorman cap has a perfect snug fit.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ElvenSho on October 05, 2014, 07:46:07 PM

Anyone else have exrea caps I can buy off them?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bpd1151 on October 05, 2014, 08:01:42 PM


Anyone else have extra caps I can buy off them?


http://pages.ebay.com/link/?nav=item.view&id=330725834159&alt=web


Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ElvenSho on October 05, 2014, 08:03:05 PM


Anyone else have extra caps I can buy off them?


[url]http://pages.ebay.com/link/?nav=item.view&id=330725834159&alt=web[/url]

Thanks! What size do i nee in mm?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: bpd1151 on October 05, 2014, 08:07:43 PM
I forgot what size I ordered it's been so long.

Go measure it, geez. Lol.

I could, or I could dig up my old receipt, but about zero motivation to do either at this moment.

Sorry. But hey, It's an excuse for you to go raise your hood & get intimate with your ride I suppose.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ElvenSho on October 05, 2014, 08:19:36 PM
I forgot what size I ordered it's been so long.

Go measure it, geez. Lol.

I could, or I could dig up my old receipt, but about zero motivation to do either at this moment.

Sorry. But hey, It's an excuse for you to go raise your hood & get intimate with your ride I suppose.
Lol ur right!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: wasinger3000 on October 06, 2014, 09:12:44 AM


Anyone else have extra caps I can buy off them?


[url]http://pages.ebay.com/link/?nav=item.view&id=330725834159&alt=web[/url]

Thanks! What size do i nee in mm?

About 65% sure it's 1 1/4 or 31.75 mm.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ElvenSho on October 07, 2014, 12:45:46 PM
Got the front bov done last night. Sounds cool, not sure If I will keep it off or not. Might try to take the 2nd one off and see if I like it even more when loud. I just hate knowing I will have to put it all back together if I have to have warranty work done.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: wasinger3000 on October 07, 2014, 12:54:47 PM
Got the front bov done last night. Sounds cool, not sure If I will keep it off or not. Might try to take the 2nd one off and see if I like it even more when loud. I just hate knowing I will have to put it all back together if I have to have warranty work done.
It's not that bad. Ive taken mine off about 5 times now. Once you get what ever your warranty work is done you shouldn't have to be at the dealer all the time. It's worth it just for the looks you get from people.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mrpositraction on October 07, 2014, 07:17:57 PM
I just did mine and it isn't loud at all I did both of them and left the hose in the back. Unhooked from the intake tube if course. The F150s are much louder.


Sent from my iPhone using ecoboost power
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: wasinger3000 on October 08, 2014, 08:58:35 AM
I just did mine and it isn't loud at all I did both of them and left the hose in the back. Unhooked from the intake tube if course. The F150s are much louder.


Sent from my iPhone using ecoboost power
Agreed. I have to try and listen for mine. No radio at all and low speeds to hear it.

All I want is the sound of a TT lambo when I drive around. Is that to much to adk?!? Hah
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mrpositraction on October 08, 2014, 10:12:53 AM

I just did mine and it isn't loud at all I did both of them and left the hose in the back. Unhooked from the intake tube if course. The F150s are much louder.


Sent from my iPhone using ecoboost power
Agreed. I have to try and listen for mine. No radio at all and low speeds to hear it.

All I want is the sound of a TT lambo when I drive around. Is that to much to adk?!? Hah

Not at all!


Sent from my iPhone using ecoboost power
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: jkeblaitis on October 08, 2014, 01:22:44 PM
My blow off valves are super loud ?.. i considered hooking one of them back up
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mrpositraction on October 08, 2014, 03:31:35 PM
Are you running the hose on the rear still?  Maybe that is it. I have them both disconnected but left the hose attaches to the rear bypass valve.


Sent from my iPhone using ecoboost power
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Josephm on October 08, 2014, 05:04:36 PM
I took both of mine off, and do not consider them to be super loud. If there is any music, you can not hear it.

My kids call it an elephant sneeze
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mrpositraction on October 09, 2014, 05:22:03 AM
I took both of mine off, and do not consider them to be super loud. If there is any music, you can not hear it.

My kids call it an elephant sneeze

I took my rear hose completely off last night to see if it made a difference......I forgot that I did it this morning and now thinking back to the drive in I didn't hear any difference.

I am also stock right now and also have the Sound Screen windshield (not sure if that makes a difference)

One thing I noticed and was disappointed to see that at only 3000 miles the recirc hoses off the bypass valves had a nice coat of oil on them already.  Looks like a catch can is in my near future.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on October 09, 2014, 06:16:11 AM
You have a '15 SHO, right?  The oil could be a break-in period thing also.  Switching to full synthetic could decrease this issue due to lower volatility.  Probably the major concern would be oil collection in the CAC.  If the problem gets worse over time, say by 7,500 miles or so, then a good catchcan system can be very useful.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mrpositraction on October 09, 2014, 06:19:31 AM
You have a '15 SHO, right?  The oil could be a break-in period thing also.  Switching to full synthetic could decrease this issue due to lower volatility.  Probably the major concern would be oil collection in the CAC.  If the problem gets worse over time, say by 7,500 miles or so, then a good catchcan system can be very useful.

Yeah, mine is a 15.  My dealer offers 1st oil changes free and I had them change it over with Ford oil at 2500 miles.  Will probably change oil again near 7500 miles and switch to a full synthetic like I have in the past.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on October 09, 2014, 09:15:47 AM
Hopefully the full syn will help protect the turbos better as well!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on October 09, 2014, 10:33:37 PM
Hopefully the full syn will help protect the turbos better as well!

Gonna disagree here Manu... No test I am aware of shows any better lubrication with syn vs hydrocarbon from the earth.....
But by going to Amsoil full syn you can get the lowest oil volatility.... Vaporized oil is bad with the recirc BOVs from the hotpipes to the intake like we have on the 3.5 GDI  engine.... So I'd also recommend BOV to VTA to cut down on this .... Even with a catch can.

So full syn will help a lot to prevent/slow coking intake valves and turbo blades... But no increased lubrication.   Ford syn is not bad, but much worse than the best.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on October 10, 2014, 03:32:28 AM
Well, I was thinking of the bearing scar tests.  If the oil has a better design, it is providing better protection from wear.  Which implies smoother running turbos, engine bearings, camshafts, etc.  Even if MC is not the best, the full syn should be better than their syn blend, but true, yet to find an actual direct comparison (looking).  If you are constantly exercising the twins, best to go with the best, no doubt.  But for "sedate"/normal DD, MC full syn should be fine, theoretically :)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: BiGMaC on October 11, 2014, 12:05:08 AM
Well, I was thinking of the bearing scar tests.  If the oil has a better design, it is providing better protection from wear.  Which implies smoother running turbos, engine bearings, camshafts, etc.  Even if MC is not the best, the full syn should be better than their syn blend, but true, yet to find an actual direct comparison (looking).  If you are constantly exercising the twins, best to go with the best, no doubt.  But for "sedate"/normal DD, MC full syn should be fine, theoretically :)
Definitely agree.... Double my cost/ quart... Much cheaper than new turbos!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SwampRat on October 11, 2014, 08:24:09 AM
Hopefully the full syn will help protect the turbos better as well!

Gonna disagree here Manu... No test I am aware of shows any better lubrication with syn vs hydrocarbon from the earth.....
But by going to Amsoil full syn you can get the lowest oil volatility.... Vaporized oil is bad with the recirc BOVs from the hotpipes to the intake like we have on the 3.5 GDI  engine.... So I'd also recommend BOV to VTA to cut down on this .... Even with a catch can.

So full syn will help a lot to prevent/slow coking intake valves and turbo blades... But no increased lubrication.   Ford syn is not bad, but much worse than the best.

Synthetic Oil is less susceptible to coking than conventional oil , a major plus in a GDI engine
                     
 In a turbocharged engine it is much better than conventional as it does not lose its viscosity at high temp extremes.   

Conventional oil will start to sludge while the synthetics will hold at those temperatures
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: polskifacet on April 29, 2015, 09:01:06 AM
This absolutely doesn't work on a 2013 SHO. The bovs bleed out all the pressure during acceleration for some reason so you can't build boost. SIGH. Would have been sweet if it did work.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Wojomojo on April 29, 2015, 09:05:38 AM
This absolutely doesn't work on a 2013 SHO. The bovs bleed out all the pressure during acceleration for some reason so you can't build boost. SIGH. Would have been sweet if it did work.
That shouldn't be the case. The blow off valves only open during a throttle let off under boost. Either way the air gets blown into the air intake piping, which isn't under pressure. Whether it is routed to atmosphere or the intake piping, nothing should change. So if this is the case you are either doing something wrong or something is wrong with your car.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: polskifacet on April 29, 2015, 09:19:28 AM
I will make sure the bov electrical connectors didn't fall off or something but this issue wasn't present when the bovs were recirc.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Wilson on April 29, 2015, 09:21:55 AM
This absolutely doesn't work on a 2013 SHO. The bovs bleed out all the pressure during acceleration for some reason so you can't build boost. SIGH. Would have been sweet if it did work.
My 2013 says otherwise. If you're bleeding pressure during acceleration something else is going on.

Wilson

Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: polskifacet on April 29, 2015, 09:42:14 AM
Sorry dudes, thanks for the quick response. I forgot to connect the little vacuum tube since I removed the whole intake pipe to get to the rear bov.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Wojomojo on April 29, 2015, 10:15:58 AM
No problem! Glad you figured it out! Enjoy the pssshhhhh!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 14flexeb on June 02, 2016, 08:21:05 PM
will this work on the 14 eb?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Sabtaj1 on June 02, 2016, 09:59:43 PM
will this work on the 14 eb?

YES
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: 14flexeb on June 03, 2016, 05:22:48 PM
awesome. thanks man
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: metroplex on December 26, 2016, 06:20:46 AM
Can anyone confirm our BOVS only open upon throttle closure? I was reading some recirculating BOVS will open slightly under vacuum since it is intended to be recirculating.

So there aren't any gains on the dyno? Would VTA help reduce hot air going back into the system? What about decrease in boost, it n would be the same as stock?
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FearlessAZ on January 16, 2017, 06:36:07 AM
Finally got around to doing this a few days ago. I love it! Instructions were spot on. Did have a little difficulty with the rear clamps but was able to rotate and remove them with some channel locks.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on January 16, 2017, 07:01:19 AM
Finally got around to doing this a few days ago. I love it! Instructions were spot on. Did have a little difficulty with the rear clamps but was able to rotate and remove them with some channel locks.
Sound clips!!!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on January 16, 2017, 07:04:11 AM
Finally got around to doing this a few days ago. I love it! Instructions were spot on. Did have a little difficulty with the rear clamps but was able to rotate and remove them with some channel locks.
I recall when doing mine a few yrs back that the rear clamp was facing the firewall making the procedure that much harder for removal and guess ford did it for a reason, enjoy. Z
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FearlessAZ on January 16, 2017, 07:16:20 AM
That is basically how both mine were. The front took less than 5 minutes. The back one took probably a good 20-30 minutes and an urban dictionary on modern curse words.

I will try to see if I can get video tomorrow. She has been sitting the last couple of weeks (trying not to put so many miles on her and driving about once a week). I will be taking her out to watch Barrett Jackson tomorrow and there is plenty of open road and highway during that drive.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on January 16, 2017, 08:06:06 AM
I recall when doing mine a few yrs back that the rear clamp was facing the firewall making the procedure that much harder for removal and guess ford did it for a reason, enjoy. Z
I highly doubt it was done to make field removal more difficult; more for production expediency.

Most likely reason being that it made off-line subassembly much quicker as the operator would have a much easier time installing the clamp in that orientation.

I got a set of these and had my rear BOV mod done in less than 5 minutes: https://www.amazon.com/dp/B000F5JM0O/ref=cm_sw_r_cp_api_CeoFybAZA24VP





Sent from my iPhone using Tapatalk
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on January 16, 2017, 12:05:15 PM
The back one took probably a good 20-30 minutes and an urban dictionary on modern curse words.
LOL!  Enjoy the show, and bring us back pics/vids from the event!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: metroplex on January 16, 2017, 03:07:53 PM
I recall when doing mine a few yrs back that the rear clamp was facing the firewall making the procedure that much harder for removal and guess ford did it for a reason, enjoy. Z
I highly doubt it was done to make field removal more difficult; more for production expediency.

Most likely reason being that it made off-line subassembly much quicker as the operator would have a much easier time installing the clamp in that orientation.

I got a set of these and had my rear BOV mod done in less than 5 minutes: https://www.amazon.com/dp/B000F5JM0O/ref=cm_sw_r_cp_api_CeoFybAZA24VP (https://www.amazon.com/dp/B000F5JM0O/ref=cm_sw_r_cp_api_CeoFybAZA24VP)





Sent from my iPhone using Tapatalk

That tool was awesome. I used this today and the rear clamps came off in literally 5 seconds, easier than the front clamp near the airbox.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: derfdog15 on January 16, 2017, 03:10:11 PM
I was going to go VTA before I did the charge pipes, but couldn't get the back clamp off, so i just waited till I did the charge pipes, and ended up having to twist the chargepipe to be able to get to the clamp.

Nice to see that there is a tool to make it easier for others.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: timbo on February 13, 2017, 09:50:49 PM
Can anyone confirm our BOVS only open upon throttle closure? I was reading some recirculating BOVS will open slightly under vacuum since it is intended to be recirculating.

So there aren't any gains on the dyno? Would VTA help reduce hot air going back into the system? What about decrease in boost, it n would be the same as stock?
I think I mentioned this in another forum.  Was curious about this also.  Are we sure these are BOVs and not BPVs?  Great if so, but if they are BPVs, I don't recommend leaving them completely open.  Throwing some filters on will help.
Title: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 16, 2017, 06:10:53 AM
I think I mentioned this in another forum.  Was curious about this also.  Are we sure these are BOVs and not BPVs?  Great if so, but if they are BPVs, I don't recommend leaving them completely open.  Throwing some filters on will help.

I'm sure someone will correct me if I'm off base, but I was under the impression that a BOV and a BPV function in much the same way to relieve pressure on throttle closure under boost. The difference being that a BOV can exit to atmosphere vs a BPV which recirculates the air into the intake. I believe the BPV is important in MAF applications where the air has already been metered, where a BOV would screw up MAF readings (because you are dumping pre-metered air).

In either case, though, I don't think air flow reverses through a BOV or BPV (from the intake to charge pipe) when under vacuum.

Since the EcoBoost uses a MAP sensor to meter air, a BOV to ATM anywhere prior to the intake manifold will not screw up  readings, and I don't believe there are any issues with VTA ingesting unfiltered air, since the direction of flow is always "out" because they're only actuating when under boost, not vacuum.




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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 16, 2017, 09:08:15 AM
FWIW ended up using a K&N vent filter a while back which worked quite well in not letting dirt build up accumulate inside the BOV. Z
K&N 62-1370  21.99
(http://i.imgur.com/FrySs7Gt.jpg)(http://i.imgur.com/P3IReZnt.jpg)https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Colorado-SHOBro on February 16, 2017, 09:41:44 AM
FWIW ended up using a K&N vent filter a while back which worked quite well in not letting dirt build up accumulate inside the BOV. Z
K&N 62-1370  21.99
([url]http://i.imgur.com/FrySs7Gt.jpg[/url])([url]http://i.imgur.com/P3IReZnt.jpg[/url])https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 ([url]https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1[/url])

did it change the sound at all? wouldn't mind something to quiet mine down a bit.


Sent from my iPhone using Tapatalk
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 16, 2017, 10:32:00 AM
FWIW ended up using a K&N vent filter a while back which worked quite well in not letting dirt build up accumulate inside the BOV. Z
K&N 62-1370  21.99
([url]http://i.imgur.com/FrySs7Gt.jpg[/url])([url]http://i.imgur.com/P3IReZnt.jpg[/url])https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 ([url]https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1[/url])

did it change the sound at all? wouldn't mind something to quiet mine down a bit.


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I don't recall as this was over two years ago and only for a short period of time and went back to stock.
IMO would purchase one and see if you notice any changes in sound. Z
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 16, 2017, 12:59:25 PM
@Colorado-SHOBro have a couple of the K&N vent Filter's in good condition just collecting dust LMK if you want them. BTW For free of course.  Z  :)
(http://i.imgur.com/SBZ0MwYh.jpg)
Title: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 16, 2017, 01:03:39 PM
@Colorado-SHOBro have a couple of the K&N Filter in good condition just collecting dust LMK if you want them. BTW For free of course.  Z  :)
([url]http://i.imgur.com/SBZ0MwYh.jpg[/url])


If he doesn't want them, I'll buy them off you. I'm curious more than anything. I wouldn't mind muting mine slightly.

My cabin is pretty quiet, so I'm sure they're pretty loud outside, since I have NO problem hearing them inside with the windows up. Haha

Keep us posted on sound effects, Nutz, if you take Z up on his offer! :)


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Colorado-SHOBro on February 16, 2017, 02:55:03 PM
honestly i'd probably only want the one as i only have one BOV VTA so more than down to split them with MiWiAu.


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 16, 2017, 04:55:05 PM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)

Title: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 16, 2017, 05:15:28 PM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)

PM sent, thanks!!!

I got another red one on order from Amazon, so I can update on sound changes ASAP! :)


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Colorado-SHOBro on February 16, 2017, 05:19:33 PM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)
this classy gentleman . . since you won't accept any payment i'm wishing you 100 good karma points for your generosity. may they be redeemed when you need them most.


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 16, 2017, 05:22:04 PM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)
this classy gentleman . . since you won't accept any payment i'm wishing you 100 good karma points for your generosity. may they be redeemed when you need them most.


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+1000. If your email ever leaks I'm sending you some bitcoins. :) In the meantime, please accept an additional 100 karma points!


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on February 16, 2017, 05:41:01 PM
Aw, you two are so sweet :P
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 17, 2017, 05:10:44 AM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)

PM sent, thanks!!!

I got another red one on order from Amazon, so I can update on sound changes ASAP! :)


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FYI ordered mine back on 3/14 and could not specify the color of choice, so one came red and one gray so ended up installing the gray one in the back/rear. Z
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 17, 2017, 05:18:24 AM
Colorado-SHOBro & MiWiAu will have the items shipped out tomorrow via usps and got you covered,enjoy the filters and keep us updated.  Z :)

PM sent, thanks!!!

I got another red one on order from Amazon, so I can update on sound changes ASAP! :)


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FYI ordered mine back on 3/14 and could not specify the color of choice, so one came red and one gray so ended up installing the gray one in the back. Z

No worries. I'll use whatever shoes up. :)


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 17, 2017, 07:18:43 AM
FWIW ended up using a K&N vent filter a while back which worked quite well in not letting dirt build up accumulate inside the BOV. Z
K&N 62-1370  21.99
([url]http://i.imgur.com/FrySs7Gt.jpg[/url])([url]http://i.imgur.com/P3IReZnt.jpg[/url])https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 ([url]https://www.amazon.com/gp/product/B00029WXTA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1[/url])

did it change the sound at all? wouldn't mind something to quiet mine down a bit.


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AFAIK only having the one BOV VTA contributes to more pressure directed/aimed towards the front of the vehicle which explains why its louder IMO.just my 2 cent.  Z
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 17, 2017, 09:48:18 AM
@MiWiAu. BTW didn't charge you extra for the BMW clamp.LMAO. Enjoy my friend and its always my pleasure to help out. Z
(http://i.imgur.com/SBZ0MwYl.jpg)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on February 17, 2017, 09:51:48 AM
@MiWiAu. BTW didn't charge you extra for the BMW clamp.LMAO. Enjoy my friend andits always my pleasure.  Z
([url]http://i.imgur.com/SBZ0MwYl.jpg[/url])


LOL, thanks, Z!!


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on February 17, 2017, 10:01:44 AM
Lets get back on Topic and enough of the Mr Nice guy and need to remind the Newb's to setup an intro and all,etc.lol. Z  :P
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on February 23, 2017, 04:36:19 AM
Discussion on using the breather filters with the BOV mod is continued here:
http://www.ecoboostperformanceforum.com/index.php/topic,7486 (http://www.ecoboostperformanceforum.com/index.php/topic,7486)

and renamed to
"How-To" Using Breather Filters with BOV VTA Mod
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FiveLeeter918 on June 05, 2017, 01:27:42 PM
so do you need 3/4" or 1" caps for this? I've seen both, and want to make sure I order what will work best. The 3/4" O'Reilly and NAPA have in stock, the 1" I have to order online.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 05, 2017, 01:33:03 PM
so do you need 3/4" or 1" caps for this? I've seen both, and want to make sure I order what will work best. The 3/4" O'Reilly and NAPA have in stock, the 1" I have to order online.
1 INCH
https://www.mcmaster.com/#84735k117/=15hfmg9 (https://www.mcmaster.com/#84735k117/=15hfmg9)
I think Derfdog has some left over. IDK. Z
http://www.ecoboostperformanceforum.com/index.php/topic,7164.0.html (http://www.ecoboostperformanceforum.com/index.php/topic,7164.0.html)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FearlessAZ on June 09, 2017, 08:18:24 PM
Took a vid today because I realized I never posted one of mine off. Enjoy!

ftp://! No longer available (http://www.youtube.com/watch?v=qWLXBDMHoAw&feature=youtu.be#)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on June 10, 2017, 03:48:53 AM
:thumb:
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 10, 2017, 05:21:58 AM
@FearlessAZ sounds Nice! fixed the above video for ya. Z  :)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: FearlessAZ on June 10, 2017, 07:49:07 AM
@FearlessAZ sounds Nice! fixed the above video for ya. Z  :)


Thank you! Couldn't figure out how to post it in like that.

The 15 psi sounds a lot better in person though  ;D
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Mase on June 17, 2017, 03:28:51 PM
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 17, 2017, 03:38:14 PM
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
Welcome there Mase!!  Do you have any pics to share?  It sounds like your wastegate hose is loose or popped off!!
Is there any noticeable decrease in performance?
Due setup in INTRO when you have a chance,thanks. Z
http://www.ecoboostperformanceforum.com/index.php/board,14.0.html (http://www.ecoboostperformanceforum.com/index.php/board,14.0.html)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Mase on June 17, 2017, 03:59:19 PM
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
Welcome there Mase!!  Do you have any pics to share?  It sounds like your wastegate hose is loose or popped off!!
Is there any noticeable decrease in performance?
Due setup in INTRO when you have a chance,thanks. Z
[url]http://www.ecoboostperformanceforum.com/index.php/board,14.0.html[/url] ([url]http://www.ecoboostperformanceforum.com/index.php/board,14.0.html[/url])


Thanks Z. I do have pics to share and have been trying to setup intro. For some reason everytime I submit I get a blank white screen and it never makes it in LOL
There definetely is no change in performance based on the venting noise. However, the venting is quite loud. It only does it when I am lightly on the throttle. If I push more it goes quiet and holds the pressure.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Mase on June 17, 2017, 04:22:19 PM
Can someone help me identify the wastegate hose? It's entirely possible it is loose or popped off.

In regards to the aftermarket BOV...do folks do this just for sound? In the past I have run Turbo XS RFL, and HKS SSQV in my cars.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 17, 2017, 04:30:02 PM
                                                 Tial BOV. Z
(http://i.imgur.com/dkrWY15h.jpg)(http://i.imgur.com/7MyvCBQh.jpg)(http://i.imgur.com/rCptgzyh.jpg?2)                           
                   Wastegate hose high-lighted in RED.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Mase on June 17, 2017, 04:38:31 PM
Wow...them pipes are sexy! And that Direct port injection...very impressive. I just got done working with Jason at Livernois about that...just cannot afford all that with as little knowledge and support I have in this area LOL

Curious why and how you went with the Tial? What kind of pipes are those? VERY nice!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 17, 2017, 04:49:44 PM
Wow...them pipes are sexy! And that Direct port injection...very impressive. I just got done working with Jason at Livernois about that...just cannot afford all that with as little knowledge and support I have in this area LOL

Curious why and how you went with the Tial? What kind of pipes are those? VERY nice!
Mike.B is da man if your interested. Z
PPE Hotpipes.
http://www.ecopowerparts.com/shop/index.php?main_page=product_info&cPath=1&products_id=22 (http://www.ecopowerparts.com/shop/index.php?main_page=product_info&cPath=1&products_id=22)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: SHOdded on June 17, 2017, 05:14:53 PM
I know for sure LME does not recommend BOVs.  They really are for sound, though some would argue it also prevents crud from reentering the system.  Definitely check the small hoses atop the manifold tho.  A lot of them are not clamped, so they can come loose sometimes.
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: Mase on June 17, 2017, 06:31:53 PM
Pulled the airbox out tonight to do the thermostat. While I was operating I checked all hoses/lines and all appear secure. Really at a loss what could be causing it to vent only under light load. I have thought for the longest time it was just a symptom of an automatic car but it seems more and more like I might have hurt the BOV(s) when I fudged the capping of all four nipples...Thanks for sharing that link. Those hard pipes are very sexy but very costly. I may have to wait on them until a rainy day!
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: MiWiAu on June 17, 2017, 07:22:16 PM
Really at a loss what could be causing it to vent only under light load. I have thought for the longest time it was just a symptom of an automatic car but it seems more and more like I might have hurt the BOV(s) when I fudged the capping of all four nipples...

My XSport does this occasionally as well. It's particularly noticeable when using cruise control up a light grade. It seems that the BOV noise coincides with the controller reducing throttle, which makes sense. If I wasn't VTA, I probably wouldn't ever notice it (no noise).

I put the breather filters on my BOVs and that muted the sound some for the light load blow off events, and made it substantially less annoying.

I'm not convinced that what you're experiencing is anything other than "normal." :)



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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: ZSHO on June 17, 2017, 07:55:25 PM
@- Mase would check the front/rear BOV to see if the Diaphragm is not torn and causing your issues. 2-8mm socket.
I would love to see some pics of the engine. Z

(http://i.imgur.com/lsJCF5Nh.jpg)(http://i.imgur.com/ddaYb7Eh.jpg)
Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: mprivi on June 19, 2017, 01:14:43 PM
As another alternative to those interested, I only disconnected from the BOV side and left the intake side of the tubes attached.  I then found the appropriate size "plug", which turned out to be a 1/2" PVC Cap.  I pushed the caps into the tubs and pulled the clamp back up over the caps.  Seems to be working well so far, and should be easier to reattached to stock if I want to for warranty work.
Do you have a pic? Interested in this


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Title: Re: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves
Post by: JDW1 on September 11, 2017, 08:39:14 AM
So I found these on Amazon that looks like a solution

https://www.amazon.com/10-Pack-Rubber-Plastic-Tubing/dp/B0742KBV6M/ref=sr_1_16?ie=UTF8&qid=1505144032&sr=8-16&keywords=1%22+cap (https://www.amazon.com/10-Pack-Rubber-Plastic-Tubing/dp/B0742KBV6M/ref=sr_1_16?ie=UTF8&qid=1505144032&sr=8-16&keywords=1%22+cap)

I am curious as to why you couldnt just set up the recirc again if the locations of the BPV's are the same?