May 25, 2020, 09:59:25 pm
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Author Topic: "How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves  (Read 738209 times)

Offline EcoPowerParts

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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



Another shot of the factory Blow off Valve with the return tube removed - vent to atmosphere


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.



Rear Blow off Valve



Complete turbo to intercooler pipe with Blow off Valves circled


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

Updated pictures with the new caps on from mcmaster - didn't know they were going to be red :(
« Last Edit: July 14, 2013, 12:58:42 pm by 4DRHTRD »
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Offline PopolZ

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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.
2010 Ford Taurus SHO, non-PP, Steel Blue #243 of 301 - Custom tune by Torrie@Unleashed, PPE non-catted downpipes, custom 3rd cat & resonator delete, water/meth injection, HKS SSQV3 BOV and Carbotech AX6 brake pads.

1991 Nissan Skyline GTR, Pearl Black Metallic - a few goodies

Offline bnoon

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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.

Offline EcoBrick Bob

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WHY?

"What difference does it make?"  (H. Clinton)  LOL :bangin:
2010 Red Candy/White EB Flex.. World's first 12 second Brick.. 12.904 @ 106.85 MPH - October 2011
2009 Spt. Red G8 GT - modded. best time 12.074 & 114.02 MPH
2008 White G8 GT - mods... 8.32 1/8 mi.

Naples, FL & Clear Lake, IA
Bob has decided not to post here any more, please do not PM him he will not receive it.

Offline EcoPowerParts

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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 :)
« Last Edit: May 09, 2013, 10:39:30 am by 4DRHTRD »
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Offline bnoon

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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.

Offline EcoPowerParts

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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.
Mike B | info@ecopowerparts.com
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Offline EcoPowerParts

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Video
Mike B | info@ecopowerparts.com
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Offline bnoon

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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.

Offline EcoPowerParts

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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.
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Offline bnoon

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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.

Offline EcoBrick Bob

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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".
2010 Red Candy/White EB Flex.. World's first 12 second Brick.. 12.904 @ 106.85 MPH - October 2011
2009 Spt. Red G8 GT - modded. best time 12.074 & 114.02 MPH
2008 White G8 GT - mods... 8.32 1/8 mi.

Naples, FL & Clear Lake, IA
Bob has decided not to post here any more, please do not PM him he will not receive it.

Offline EcoBrick Bob

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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..
2010 Red Candy/White EB Flex.. World's first 12 second Brick.. 12.904 @ 106.85 MPH - October 2011
2009 Spt. Red G8 GT - modded. best time 12.074 & 114.02 MPH
2008 White G8 GT - mods... 8.32 1/8 mi.

Naples, FL & Clear Lake, IA
Bob has decided not to post here any more, please do not PM him he will not receive it.

Offline EcoPowerParts

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Another video
Mike B | info@ecopowerparts.com
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 please use my website for any price quotes and to submit any orders.
Please email me via info@ecopowerparts.com if you have any questions on new or existing orders, PM's via the forum are hard to track your purchase as I can't relate user name to actual name.
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Offline EcoBrick Bob

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I would do this only if it will make "LOUD FART SOUNDS"... :biggrin:
2010 Red Candy/White EB Flex.. World's first 12 second Brick.. 12.904 @ 106.85 MPH - October 2011
2009 Spt. Red G8 GT - modded. best time 12.074 & 114.02 MPH
2008 White G8 GT - mods... 8.32 1/8 mi.

Naples, FL & Clear Lake, IA
Bob has decided not to post here any more, please do not PM him he will not receive it.

 

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