boost gauge

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boost gauge - 4/5/2007 9:26:38 PM

evoIX

Posts: 16
Joined: 4/3/2007
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I own a evo IX. Everything on the car is stock including the three gauges it came with; battery voltage, oil pan temp.,and turbo boost. Can anyone tell me what the 1.5 on the boost gauge is equivelant to in psi? When I am at peak boost it is reading around 1.0, it never makes it to 1.5. I was told the stock boost is around 20psi, is this correct?

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RE: boost gauge - 4/6/2007 10:23:06 AM

EMonz57

Posts: 11692
Joined: 5/13/2005
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1.0 = 14.7 PSI so you are running less boost for some reason
1.5 = 22 PSI

its metric system thats all all you need to do to figure out what the boost is. Take thenumber in bars and mutliply it by 14.7

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RE: boost gauge - 4/6/2007 10:37:43 AM

RCJr9186

Posts: 5638
Joined: 7/27/2005
From: Summerville, SC
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do you have or has anybody else every had a boost controller on it? my friend has an EVO VIII, he was running stock boost for a couple months then got a EBC, when he sold it and hooked everything back up he was only running between 11 and 14psi b/c aparently something was missing or messed up w/ his stock boost controller, he told me that he heard from somwhere that this is somewhat common but he's got a MBC now and runnin 21psi again.

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RE: boost gauge - 4/6/2007 4:58:52 PM

EMonz57

Posts: 11692
Joined: 5/13/2005
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quote:

ORIGINAL: RCJr9186

do you have or has anybody else every had a boost controller on it? my friend has an EVO VIII, he was running stock boost for a couple months then got a EBC, when he sold it and hooked everything back up he was only running between 11 and 14psi b/c aparently something was missing or messed up w/ his stock boost controller, he told me that he heard from somwhere that this is somewhat common but he's got a MBC now and runnin 21psi again.

the Evo VIII only runs like 16PSI stock anyways. it will spike 19 then taper at like 4k to 16-15 PSI.

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1993 Supra 6spd(OOOO\ ..... /OOOO)

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RE: boost gauge - 4/6/2007 10:53:31 PM

evoIX

Posts: 16
Joined: 4/3/2007
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When I reach peak boost it will read right in between 1.0 and 1.5 so I guess my turbo is creating about 18.4 psi. I guess this is normal considering the spike is 19psi. Does a stock evo 8 and evo 9 create the same boost? Will an aftermarket BOV keep my turbo's boost from tapering?

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RE: boost gauge - 4/7/2007 9:12:06 AM

EMonz57

Posts: 11692
Joined: 5/13/2005
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quote:

ORIGINAL: evoIX

When I reach peak boost it will read right in between 1.0 and 1.5 so I guess my turbo is creating about 18.4 psi. I guess this is normal considering the spike is 19psi. Does a stock evo 8 and evo 9 create the same boost? Will an aftermarket BOV keep my turbo's boost from tapering?

Evo IXs as far as I know should not taper and should un and hold 20.5 PSI. if you added a BOV you may have a boost leak

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