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boost leaks

thecannoliman121

Active member
Joined
Oct 24, 2012
Messages
44
Location
Rhode Island
when my car is running. I have pre loaded the waste gate and the most boost I am getting out of my 16g is 5 pounds of boost. im wondering where to look for leaks. I have the tester. just looking for guidance if someone has any?
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AnotherNewb

Well-known member
Joined
Apr 25, 2010
Messages
1,472
Location
Orlando, FL
Throttle body, intercooler pipes and couplers, turbo outlet pipe, injector seals, intake manifold are all common places they leak. When you put your tester on it should be obvious if you're loosing that much air. Don't rule out an exhaust leak. Cracked manifold or even a cracked turbine housing, especially around the waste gate flapper.
 

EfiniX

Well-known member
Joined
Oct 18, 2012
Messages
647
Location
portland, or
It shouldn't be too hard to find if you are only getting 5psi. my turbo (20g) was pushing 20psi and my tuner/mechanic (EHMotorsports) said it was leaking boost like a sieve from a dozen places.
 

BogusSVO

Well-known member
Joined
Aug 29, 2013
Messages
232
Location
Pensacola, Florida
Fuel injector seals at the head is another common one. Along with the TB shaft seals.

If you do a BLT and the rad over flow bubbles, that is the FIAV seal shot.

Wrong/improper installed TB gaskets leak too.

Missing O ring on the compressor cover can be a huge leak.
 
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