loosing boost

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Nov 23, 2002 | 11:05 AM

sscamaro387

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From: San Jose

loosing boost

ok, I have done everything to try an figure out why I m only making 3-5 lbs of boost, cause the gage is fine, hose clamps tight. everything, but i got my car dynod on monday, and I onloy got 354 rwhp, and 364 rwtq. I have a P-1 Kit, with a 3.0 pulley on it. so i should be at 12 psi or so. Any suggestions????

Thanks ahead of time

ps. When i reached 4500 rpm's, the curve hella dropped. on hp, and torqe.

Nov 23, 2002 | 04:09 PM

Just Chris

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From: CA

Re: loosing boost

Did you EVER see more than 3-5 pounds or did it suddenly drop? Does your surge valve close under boost? I live in Santa Clara and also have the ATI kit, maybe we could get together and figure this thing out.

Nov 23, 2002 | 04:29 PM

sscamaro387

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From: San Jose

Re: loosing boost

<blockquote>quote:<hr />Originally posted by Just Chris:
Did you EVER see more than 3-5 pounds or did it suddenly drop? Does your surge valve close under boost? I live in Santa Clara and also have the ATI kit, maybe we could get together and figure this thing out.<hr /></blockquote>I never say more than 5#'s, not sure if the valve is closing?? when i disconnected it, I can move it open/closed freely. and i work in sunnyvale, and live by Valley Fair. So let me know, I get off work at 5.

Nov 23, 2002 | 04:56 PM

White SS

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From: ft. washington md

Re: loosing boost

<blockquote>quote:<hr />Originally posted by Just Chris:
Did you EVER see more than 3-5 pounds or did it suddenly drop? Does your surge valve close under boost? I live in Santa Clara and also have the ATI kit, maybe we could get together and figure this thing out.<hr /></blockquote>My boost suddenly drops I think it is from belt slip how do I check to make shore the surge valve is working right?

Nov 23, 2002 | 05:35 PM

Blackbird

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From: Bellevue, Wa

Re: loosing boost

my powerdyne only makes 5psi peak and the car is making 433/432

you definetly have something going really wrong.

who did your tuning. can you post the graph?

I am in San Jose if you need help.

Nov 23, 2002 | 05:40 PM

White SS

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From: ft. washington md

Re: loosing boost

I think he has somehing else going on to because my p-1sc w/3.1 pulley I was putting those numbers down by 2300rpm (stock internals / untuned)

[ November 23, 2002, 05:41 PM: Message edited by: White SS ]