Ecoboost Performance Forum

Ecoboost Performance => Troubleshooting, Maintenance, TSB Articles => Troubleshooting => Topic started by: EcoPowerParts on June 25, 2013, 12:56:50 AM

Title: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 12:56:50 AM
I attempt to launch with my new tune that has 21+ degrees of timing with the boost leak fixed, it's pretty funny

http://youtu.be/Old-qfLpmZg (http://youtu.be/Old-qfLpmZg)

Another video, this time just a regular pull

Boost leak fixed (http://www.youtube.com/watch?v=uCLvexuoHnk#ws)
Title: Re: Boost leak fixed! No more traction!!!
Post by: DJE624 on June 25, 2013, 01:01:04 AM
I love your videos Mike!  The gauges.  Feel like I am there with ya! 
Title: Re: Boost leak fixed! No more traction!!!
Post by: SHOdded on June 25, 2013, 04:02:35 AM
At least your 0-60 time is better than the last run!  Boost seems a little down?  I think you were able to hit 23.1 before.
Title: Boost leak fixed! No more traction!!!
Post by: Larrylu on June 25, 2013, 06:42:37 AM
I'm enjoying your videos Mike. I don't understand what the shft 1 and shft 2 values are telling you though. Is there a quick explanation?  I also wonder if we all need to be watching for boost tube splits in our rides or if your mods have contributed to the "split ability"?  I hope that now that we know....., that the suspect area is easy to see if you know where to look.
Title: Re: Boost leak fixed! No more traction!!!
Post by: bnoon on June 25, 2013, 08:00:59 AM
What I want to know is what is up with that lean afr?!?!?! I know direct injection can run leaner at wot than port injection but damn! You were at 10.9 there for a while! Most boosted direct injection engines were crazy to run low 12's to high 11's... blows my mind ( and hopefully not your engine!)
Title: Re: Boost leak fixed! No more traction!!!
Post by: bnoon on June 25, 2013, 08:02:47 AM
Quote from: Larrylu on June 25, 2013, 06:42:37 AM
I'm enjoying your videos Mike. I don't understand what the shft 1 and shft 2 values are telling you though. Is there a quick explanation?  I also wonder if we all need to be watching for boost tube splits in our rides or if your mods have contributed to the "split ability"?  I hope that now that we know....., that the suspect area is easy to see if you know where to look.

STFT 1 and 2 are short term fuel trims for bank 1 and bank 2.
Title: Re: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 08:54:23 AM
Quote from: bnoon on June 25, 2013, 08:00:59 AM
What I want to know is what is up with that lean afr?!?!?! I know direct injection can run leaner at wot than port injection but damn! You were at 10.9 there for a while! Most boosted direct injection engines were crazy to run low 12's to high 11's... blows my mind ( and hopefully not your engine!)
Lower numbers is richer, I'm very rich right now, need to get that sorted out.

Sent from my phone with lots of misspelled words...

Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoBrick Bob on June 25, 2013, 10:23:47 AM

It seems to me that running rich at this point in your testing is a "Good Thing".
Are you tracking DI  FRP?  If so, how is it holding up? That was always my biggest fear.  BAP and Methanol Spray helped, but I still always worried when lambda spikes might show up.

How do you keep the AWD system from shutting everything down?

The night I got my 12.904, I had my system shut down on 9 of 12 runs. Always happened at the top end of 1st.  When I left it floored, it came back on with a .5 loss in 1/4 mi time, but little effect on speed.

That's when I went to the front Nitto 05R DR's, which at my performance levels solved my issues.
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 10:31:56 AM
Quote from: EcoBrick Bob on June 25, 2013, 10:23:47 AM

It seems to me that running rich at this point in your testing is a "Good Thing".
Are you tracking DI  FRP?  If so, how is it holding up? That was always my biggest fear.  BAP and Methanol Spray helped, but I still always worried when lambda spikes might show up.

How do you keep the AWD system from shutting everything down?

The night I got my 12.904, I had my system shut down on 9 of 12 runs. Always happened at the top end of 1st.  When I left it floored, it came back on with a .5 loss in 1/4 mi time, but little effect on speed.

That's when I went to the front Nitto 05R DR's, which at my performance levels solved my issues.
Bob the high pressure fuel pump is in the middle of the video.
I am also having top of 1st gear issue, BAD issues. I need to get that taken care of, hopefully the super sticky Hankooks I ordered will fix it, if not I'll look at your option. :)
Another thing I'm looking at is a low boost circuit for first gear. I think I've found an OSS to MPH converter I can use then feed it to the AMS500 boost controller. If I can get out of the hole on the street I should be good.
For the track I'm looking at some 17" slicks ASAP. :)
Title: Re: Boost leak fixed! No more traction!!!
Post by: ShoBoat on June 25, 2013, 11:25:13 AM
Damn, I can't wait to see the time you get out of this setup. Sound crazy!
Title: Re: Boost leak fixed! No more traction!!!
Post by: bpd1151 on June 25, 2013, 11:28:46 AM
Since I am looking at the upgraded turbo's myself this year, can either you (4DRHTRD) or Darrell, please provide dimensions/measurements and/or clarification/location of the pipe that split on you guys?

I'd obviously like to get that ordered up ahead of time, so when I am ready to do install my end, and can take care of that at the same time.

Please?

Thank you :ok:

Sent from my DROID3 using Tapatalk 2

Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 11:45:06 AM
Quote from: bpd1151 on June 25, 2013, 11:28:46 AM
Since I am looking at the upgraded turbo's myself this year, can either you (4DRHTRD) or Darrell, please provide dimensions/measurements and/or clarification/location of the pipe that split on you guys?

I'd obviously like to get that ordered up ahead of time, so when I am ready to do install my end, and can take care of that at the same time.

Please?

Thank you :ok:

Sent from my DROID3 using Tapatalk 2


You'll need a 1.75" to 1.5" silicone reducer just like this:
http://www.amazon.com/HPS-1-5-Reducer-Coupler-Silicone/dp/B004O9UXO6 (http://www.amazon.com/HPS-1-5-Reducer-Coupler-Silicone/dp/B004O9UXO6)

You'll want some T clamps to go with that as well, you can't reuse the stocker on the bottom and the top clamp is a plastic ring.
Title: Re: Boost leak fixed! No more traction!!!
Post by: PopolZ on June 25, 2013, 12:11:07 PM
I don't think those clamps will hold, I'd go a tad bigger :D
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoBrick Bob on June 25, 2013, 12:22:10 PM
Sorry... I didn't look at the latest video. 

I agree that lowering boost at the top of first gear would be ideal.  When I was running my 3 bar sensor, I saw my highest boost levels at the top of 2nd gear, but traction wasn't an issue at that point.  The night I was seeing ignition cut off or fuel cut off, not sure which it is, I did everything to clean and heat up my tires.  The other thing that was likely making matters worse for me was the smaller diameter tires. At the time I was running Conti DW's - 255-45-18 which gave me an effective axle ratio of around 3.40.  It was a bit cold for them that night.

With the SCT tuner, what are you logging to get the actual boost #?  I always have to calculate it afterwards.
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 12:50:25 PM
Quote from: EcoBrick Bob on June 25, 2013, 12:22:10 PM
Sorry... I didn't look at the latest video. 

I agree that lowering boost at the top of first gear would be ideal.  When I was running my 3 bar sensor, I saw my highest boost levels at the top of 2nd gear, but traction wasn't an issue at that point.  The night I was seeing ignition cut off or fuel cut off, not sure which it is, I did everything to clean and heat up my tires.  The other thing that was likely making matters worse for me was the smaller diameter tires. At the time I was running Conti DW's - 255-45-18 which gave me an effective axle ratio of around 3.40.  It was a bit cold for them that night.

With the SCT tuner, what are you logging to get the actual boost #?  I always have to calculate it afterwards.
I use this column:
tip prs boost kpa|1|224|73|0
Then apply the number to this calculator:
http://www.csgnetwork.com/presskpapsicvt.html (http://www.csgnetwork.com/presskpapsicvt.html)
Then subtract 14.7 for ambient pressure to come up with actual boost.
It's MUCH easier to use torque with the video plugin like I did. I need to get a faster OBD2 adapter though, I'm starting to see some lag.
:)
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoBrick Bob on June 25, 2013, 01:25:20 PM
I use the TIP # and divide by 2 and subtract 14.7 (I usually use 15).

So if my TIP reads 62, I subtract 15 from 31 which gives me approx 16 psi.

Am I using a different TIP # than you?  Am I doing this wrong?
Title: Re: Boost leak fixed! No more traction!!!
Post by: bnoon on June 25, 2013, 09:28:20 PM
Oh duh, I knew it was richer. Not sure what I was thinking.  :bangin: Good job getting it to run right. I know you can do it!
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on June 25, 2013, 09:33:54 PM
Quote from: EcoBrick Bob on June 25, 2013, 01:25:20 PM
I use the TIP # and divide by 2 and subtract 14.7 (I usually use 15).

So if my TIP reads 62, I subtract 15 from 31 which gives me approx 16 psi.

Am I using a different TIP # than you?  Am I doing this wrong?
I'm getting to the point where I only use SCT to verify knock, I use Torque for everything else, the video recorder works so great that SCT just slows me down and the interface is good for logging but not for instantaneous verification of changes. I will continue to use SCT for virtual dyno though. :)
Title: Re: Boost leak fixed! No more traction!!!
Post by: Needmoreboost on July 31, 2013, 08:23:07 PM
Boost leaks can be a b*tch when trying to track them down.  They can also make your tuning a nightmare.  Glad it's running good.  :)
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on July 31, 2013, 08:50:59 PM
Quote from: Needmoreboost on July 31, 2013, 08:23:07 PM
Boost leaks can be a b*tch when trying to track them down.  They can also make your tuning a nightmare.  Glad it's running good.  :)
still fighting them >:(

Sent from my MZ609 using Tapatalk 2

Title: Re: Boost leak fixed! No more traction!!!
Post by: crash712us on August 01, 2013, 05:04:49 AM
A smoke machine makes quick work of finding leaks.
Title: Re: Boost leak fixed! No more traction!!!
Post by: jdeprato on August 01, 2013, 12:15:39 PM
I saw a video of a guy that used cigarette smoke to find his boost leak. I think the video was posted on mazdaspeedforums. But yeah any machine that can create smoke should work when pressurizing the system.
Title: Re: Boost leak fixed! No more traction!!!
Post by: jomc111 on August 01, 2013, 02:55:11 PM
I second smoke machine picked a small one up last year after Halloween for $10 came with gal of juice. Made finding leaks insanly easy
Title: Re: Boost leak fixed! No more traction!!!
Post by: Needmoreboost on August 01, 2013, 04:39:52 PM
I had a boost leak checker on my SRT4 which you just used a air hose to pressurize the system to check for leaks.  Real easy to do on the 4 banger.  T-bolt clamps usually solved the problem.  Have no clue on the SHO where check for it on twin turbo's...?
Title: Re: Boost leak fixed! No more traction!!!
Post by: EcoPowerParts on August 01, 2013, 04:46:31 PM
I looked into building a boost leak setup (I used to own an SRT-4 and a Speed6) BUT you'd have to do one turbo and then the other.
The smoke machine idea doesn't make sense, I only have a leak above 10 to 17 psi, Need to pressureize the system. I'm going to buy a smoke machine, making a hose to my air filter and then put it on the dyno and make a pull and see if we can find it.
Title: Re: Boost leak fixed! No more traction!!!
Post by: Needmoreboost on August 01, 2013, 05:05:59 PM
Quote from: 4DRHTRD on August 01, 2013, 04:46:31 PM
I looked into building a boost leak setup (I used to own an SRT-4 and a Speed6) BUT you'd have to do one turbo and then the other.
The smoke machine idea doesn't make sense, I only have a leak above 10 to 17 psi, Need to pressureize the system. I'm going to buy a smoke machine, making a hose to my air filter and then put it on the dyno and make a pull and see if we can find it.

Wow, that sucks.  I bet this will be more of a problem with the higher mileage guys'.  I always check and tighten the clamps where I can.  One small boost leak can phuck everything up.   :biggrin:
Title: Re: Boost leak fixed! No more traction!!!
Post by: jomc111 on August 01, 2013, 05:07:59 PM
That was the way I was thinking we would have to go about it,  but I was able to find leaks on my speed without pressurizing the system and they were very tiny. The smoke works itsself threw every crack. So might get lucky and not have to wait for dyno.

Fyi I let the fog machine keep pumping till it kicked its self off , so there was insane amount of smoke in the piping
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