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20psi you sure

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Old 18 March 2011, 07:22 PM
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Default 20psi you sure

1993 sti wagon is boosting at 20psi surely this is not right?????
Old 18 March 2011, 07:33 PM
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Lol no good way to kill an early gearbox though
Old 18 March 2011, 07:46 PM
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Originally Posted by 53WRX
Lol no good way to kill an early gearbox though

My thoughts exactly mbc might have to go back on ive put the boost solenoid back on plumbed in etc but its still boosting far to much for me any ideas why it would be overboosting that much
Old 18 March 2011, 07:57 PM
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20 psi is only 1.37 bar , so wont be far off on peak

or will it

stu
Old 18 March 2011, 08:03 PM
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Originally Posted by stuart148
20 psi is only 1.37 bar , so wont be far off on peak

or will it

stu
i'm not sure tbh,i keep getting fuel cut though which is sooooo annoying
Old 18 March 2011, 08:10 PM
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Fuel cut is 1.2 on early map sensors typically .8-1.0 is about right in most environments I guess
Old 18 March 2011, 08:21 PM
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yeah the fuel cut on my other scoob is 1.2bar and boosting 1.1 so i'd imagine its the same might have a play with the mbc try and get 1.1 what psi is that lol
Old 18 March 2011, 08:46 PM
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its 15.95 lol

stu
Old 18 March 2011, 08:48 PM
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and sorry for my last reply , thought yours might of been mapped or up,d the boost a little

stu
Old 18 March 2011, 10:05 PM
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Originally Posted by stuart148
its 15.95 lol

stu

Old 18 March 2011, 10:08 PM
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Originally Posted by stuart148
and sorry for my last reply , thought yours might of been mapped or up,d the boost a little

stu
no worries pal,its got a custom made ecu set to run 17psi hold boost etc only just found out have to wind her down a bit to 16ish in the morning when i change the coils
Old 19 March 2011, 03:34 PM
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sorted mbc set to 17psi and dodgy coil was not fuel cut as i thought
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