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boost leak test done and.............

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wickedz

10+ Year Contributor
736
5
Dec 12, 2009
Madison, Wisconsin
Only found one big leak. It was coming from the TB down where it looks like it has 2 hoses conecting to it. To me it looks like small coolant hoses (seens how it runs to my thermostat pipe LOL). Anyway it was rushing air out as fast as I was putting it in. Replaced the clamp to a hose clamp, and that went away. Now, I have no more Lag for the most part..


Now my biggest problem is, Are my pipes too much for a 14b? You can hear the pipes filling with air no problem, but dont feel the power. I have been in some 1g's with the 14b and mods, and the 14b pulled harder, where you could feel the boost. I still think I have boost leaks, but after, oh I say about 5 test and spraying everything down 1, 2, 3 times, I couldnt see any leaks or bubbles. I even had another guy on the forums with me looking.

The car still gets up to a lousy 9 psi and then sometimes, looses a few psi (leaking). I want to buy a MBC and run more boost. Im not using the adjustable 16g WG anymore, so im on the oem 14b WG, so whatever that PSI spring is, is what im doing, or should be doing
 
Sounds like either one of two things..You still have a boost leak, which could be the shitty 2g bov or your piping..Now it also could be a pre turbo exhaust leak, which would not allow your turbo to make as much boost as it should..So make sure your manifold bolts are all tight,the ones to turbo and the ones holding the manifold on..
 
No Im now venting. I picked up a 2nd MAFT because I wasnt sure if I fried my 1st one. I have that dialed in now to work great. I hold 1k idle and also even on shifts, I dont have issues like most said I would.

I had this problem even before I went vent route. I think my Injen 3" turbo intake pipe and my 2.5 IC pipe and FMIC are too much for a 14b maybe

Sounds like either one of two things..You still have a boost leak, which could be the shitty 2g bov or your piping..Now it also could be a pre turbo exhaust leak, which would not allow your turbo to make as much boost as it should..So make sure your manifold bolts are all tight,the ones to turbo and the ones holding the manifold on..

Im missing 1 mani bolt, because it looks to be broke off in head (pre-bought). Also I know I need the gasket on my exhaust flange on my downpipe. I have the 3 bolt flange, so its not OEM 2 bolt gasket..


again had this same issue before I vented. And for my piping, I had some rusted T bolt clamps, and I switched them all out, with brand new clamps. The piping is way better now then when I bought the car
 
LOL, well air was literally RUSHING out it. I cant even explain on how much was comign out LOL. its fixed
 
Well, in that case, I would suggest you take off the bottom half of your throttle body and inspect the FIAV gasket.
 
pictures tend to help sometimes if you get some pics of your engine bay maybe it will help. your 14b isn't TOO small to fill up the piping cause i have my t25 on my car wiht greddy big fmic and i have no problems
 
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LOL does that help? I dont see why it would, but there you go
 

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honestly speaking I too have a type S and under boost it leaks alittle ,sometimes you have to tweak with the setting ontop ,otherwise recircing ideal I mean with my t25 on 16 psi i hit full boost at like 3300
 
hmmm went with a alumium gasket on my exhaust flange downpipe, and still same thing, minus exhaust leak LOL. quieter now LOL
 
Air shouldn't ever pass through that hose that connects to your t-stat's water pipe from the TB. That's for coolant to to pass through to utilize your TB's FIAV. Coolant only.

Yea... There should not be air coming out of the fiav coolant ports. You may have a problem with your throttle body.
 
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