Mitsubishi Evolution For eight generations now, the Evolution has been the leading name in AWD performance, both on the road, and off.

boost gauge

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  #1  
Old 04-05-2007, 11:26 PM
evoIX's Avatar
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Default boost gauge

I own a evo IX. Everything on the car is stock including the three gauges it came with; battery voltage, oil pan temp.,andturbo 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?
 
  #2  
Old 04-06-2007, 12:23 PM
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Default RE: boost gauge

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
 
  #3  
Old 04-06-2007, 12:37 PM
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Default RE: boost gauge

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.
 
  #4  
Old 04-06-2007, 06:58 PM
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Default RE: boost gauge

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.
 
  #5  
Old 04-07-2007, 12:53 AM
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Default RE: boost gauge

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 aftermarketBOVkeep my turbo's boost from tapering?
 
  #6  
Old 04-07-2007, 11:12 AM
EMonz57's Avatar
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Default RE: boost gauge

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 aftermarketBOVkeep 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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