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Max boost for 9.5 compression..

Old Apr 21, 2003 | 09:37 PM
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From: Barto PA
Default Max boost for 9.5 compression..

and 94 octane. Getting stage 2 heads from absolute speed and wondering how much more boost can I run. I run around 7.5 now.
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Old Apr 23, 2003 | 10:55 PM
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From: Barto PA
Default Re: Max boost for 9.5 compression..

TTT
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Old Apr 24, 2003 | 05:10 AM
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Default Re: Max boost for 9.5 compression..

Probably around 10psi.
youll have to tune and dyno and watch your knock and all that to really tell.
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Old Apr 24, 2003 | 09:17 AM
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From: Barto PA
Default Re: Max boost for 9.5 compression..

Really I though I could go more then that. My timing is at like 19 degrees so that might play a big part to.
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Old Apr 24, 2003 | 09:31 AM
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Default Re: Max boost for 9.5 compression..

I would say that since some guys are running 10 on stock motor and 94 oct I would try 12 to start and go up from there.
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Old Apr 24, 2003 | 09:53 AM
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Default Re: Max boost for 9.5 compression..

who is running 10psi with 94oct on stock motor with a turbo??
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Old Apr 24, 2003 | 02:40 PM
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Default Re: Max boost for 9.5 compression..

I run between 13-14psi depending on the weather. On pump gas. Note that my whole engine was made for that though much psi though. I would not run that much on stock or semi-stock engine.
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Old Apr 24, 2003 | 07:08 PM
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Default Re: Max boost for 9.5 compression..

Max? I'd think 11-12psi also, like others have said.
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