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How To: Build And Use Boost Leak Tester


Denovae

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use it as a size reference

well actually it was there to hold down the paper because my roomie farted and i opened the window to get rid of the smell.

:(

plus i dip. it easily accessible and ready to use.

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The more quarters = the more boost it'll hold?

I'd recommend no more than two quarters. three quarters is definitely too much, it'll force the retainer out of the seat in the CBV housing.

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Sounds good, so 2 quarters is plenty for 10-12 psi?

if your boost gauge is reading 10-12psi i'd go with a single quarter. I ran two quarters at 20psi before i got my BOV and it worked fine. two quarters on only 10-12psi and you may see negative effects such as backspin of the turbo or Part Throttle Boost which is never good for a turbo or engine and may end up throwing a PCM OBDII code. one possible fix is a flash/upgraded ECU or MAF voltage clamp for the PTB code, the PTB will still be there but your PCM will not see it - also a bad thing unless you want to run more boost than the PCM/ECU is tolerant of.

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if your boost gauge is reading 10-12psi i'd go with a single quarter. I ran two quarters at 20psi before i got my BOV and it worked fine. two quarters on only 10-12psi and you may see negative effects such as backspin of the turbo or Part Throttle Boost which is never good for a turbo or engine and may end up throwing a PCM OBDII code. one possible fix is a flash/upgraded ECU or MAF voltage clamp for the PTB code, the PTB will still be there but your PCM will not see it - also a bad thing unless you want to run more boost than the PCM/ECU is tolerant of.

Alright, I have a brand new CBV going in to replace my old one with 95k on it. I'll put one quarter in and see how that is. Thanks for the tip

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Alright, I have a brand new CBV going in to replace my old one with 95k on it. I'll put one quarter in and see how that is

you ever need another one PM me, mine is the pictured, used for maybe 10k miles, cleaned, and everything. i don't ever use it. I'd let it go for like 5$ + shipping cots. :lol: I'll even include 2 quarters!

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  • 4 weeks later...

i did it, i added a quarter to the cbv to supplement the 17 psi i currently push. THAT JOB SUCKED. oh dear god was it difficult. And the only hard part is getting the CBV off and on. everything else was a joke. but heres my tip: USE A RACHETING BOX END!!!!!!! but yeah, no more CBV flutter!

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