Boost pressure?

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Jul 20, 2013 | 12:35 AM

Phil 850

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From: Sonoma County, California

Boost pressure?

I have been looking and think this is right but is stock boost pressure for my 95 850 turbo 9.5 psi?

Jul 20, 2013 | 08:20 AM

97black850

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I have read that on multiple sources, but I'm trying to get my 94 to that level lol

Jul 20, 2013 | 04:10 PM

boxpin

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From: Rocklin, Ca

Turbo: 9.6
R: 10.5

Jul 20, 2013 | 04:48 PM

Phil 850

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From: Sonoma County, California

Quote:

Originally Posted by boxpin

Turbo: 9.6
R: 10.5

Interesting, I had a chance yesterday to do just under a 1/4 mile wide open and watch my boost gauge and it went to a little over 11 before I had to let off.

Jul 20, 2013 | 05:17 PM

rspi

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From: Albuquerque, NM

Nice.

Jul 21, 2013 | 12:24 AM

Phil 850

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Quote:

Originally Posted by rspi

Nice.

I had a chance to try it again and got the same results. I need to get a chance to push it longer but it looks good.

Jul 21, 2013 | 05:38 AM

rspi

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It could be over boosting due to a waste gate adjustment or something worn.

Jul 22, 2013 | 12:06 PM

boxpin

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From: Rocklin, Ca

Thats called overboost. The ECU is set to boost to a specific setting. Due to mechanics, delay and other ungodly events it may overboost then settle. You asked what the stock settings are, there you go.

Jul 22, 2013 | 05:12 PM

Vmax

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From: Palm Springs, FL

Quote:

Originally Posted by Phil 850

Interesting, I had a chance yesterday to do just under a 1/4 mile wide open and watch my boost gauge and it went to a little over 11 before I had to let off.

For years I've heard from owners and auto magazines the R produces12psi for 30secs. As long as you're making 9.5 or more you're good.