fstr n u

I have a rear mount STS kit. I capped off the 4" end just before the throttle body, and i have my air compressor connector on the rear pipe just after the turbo.

I have gone through my system and caught the 5 separate leaks i had (3 holes drilled in the charge pipe by the installer and 2 silicone couplers not doing their job).

Now when i run the BLT and put around 10-15psi through my intake pipe from turbo to throttle body, there is no whistling any more....but there is a very slow leak. The compressor gauge shows that i am losing about 1 psi every few seconds.

Does anyone know why that would be if there are no apparent leaks/sound while doing the BLT?

NoGo

iTrader: (2)

You still have a leak it is just too small to be obvious.

The real question is whether or not you want to spend the time to find it or live with it.

If you choose to go looking, I would recommend the BOV and your block off plates for starters. If you still want to look very soapy water along the piping - look for bubbles.

fstr n u

No i don't want to live with it...soapy bubbles it is

NoGo

iTrader: (2)

I've found that confiscating a windex bottle or something and using it is the easiest way to go about it.

Make sure you have the soapy water mixed up right so it makes bubbles - otherwise you are just giving your charge piping a bath. I've never used it, but kid bubble blow **** would probably be ideal.

Good luck. I'm still guessing it is your BOV or one of the ends of your piping (where your pressing in air, or where you isolated it at the TB) that is doing the leaking.

fastcars95

iTrader: (9)

Do you have access to a smoke machine. Most large shops should have one.
It could save you alot of time

HRHohio

Don't forget to check the exhaust side of the house for leaks. Just as important. I found one on my I-Pipe and one on the wideband bung my builder (ex-builder) welded in for me. Got those sealed up and it helped with spoolin.

1BADAZZSS

iTrader: (23)

Soapy water or if you can submerge the whole system under water. Preferably off the car

JoshuaGrooms83

iTrader: (2)

ug, hunting down some myself now... cars not even building boost. even at WOT. i gotta check the whole thing

Blackpanther99

iTrader: (8)

Have you checked all the piping and welds closely?

Could be too small to find the leak. Lol

fstr n u

I found it last season. Small pin point hole just forward of the rear axle as the charge piping was bending into the subframe connector. Turns out a previous mechanic thought it would be a good idea to puncture 3 small holes in my charge piping to "assist" moisture in getting out of an apparent sealed system. Now I have 3 clamps over the holes in my charge pipes.

This is one close to my BOV:



My tester:



My system is sealed and now I am hunting for a bigger turbo.

JoshuaGrooms83

iTrader: (2)

well i just got my boost leak tester, so now ill have something that can tell me somthing alittle better. gonna have the exhaust smoked as well to see if anything else is leaking that im not seeing