IS this normal?
#1
IS this normal?
I dropped off the car today to my mechanic shop and went back to work, and he drove the car around for a bit...see if everythings fine etc..so He called me back about an hr or so..He said why is my boost so high "25-26 PSi"?
And he asked me if I installed anything internal, cams etc... I said NO.
Current mods are Invidia Q300 Catback with T1R Test Pipe, ARC UICP, ARC Suction Intake Box, Ultimate LICP, Perrin IC. 91 OCt. Stock Turbo. No tune yet.
Is this something normal, I know black smoke comes out on WOT...Running Rich
And he asked me if I installed anything internal, cams etc... I said NO.
Current mods are Invidia Q300 Catback with T1R Test Pipe, ARC UICP, ARC Suction Intake Box, Ultimate LICP, Perrin IC. 91 OCt. Stock Turbo. No tune yet.
Is this something normal, I know black smoke comes out on WOT...Running Rich
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#8
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I have stock tune on the Evo X and with the Greddy Informeter I read 23.2 max psi on the stock turbo. I have Greddy SE Exhaust, Test pipe, and a drop in filter only. Both on and off the test pipe I have gotten peak of 23.2 psi roughly. It could be boosting more because I heard the on board IN-MAP sensor on the Evo X can only read up to 23 psi but the car boosts up to 24 psi max. Anything above 24 psi without a tune is not safe unless your logging knock to make sure your ok to peak above that and only for a 1-2 seconds.
Last edited by raytrix; Oct 16, 2009 at 04:58 AM.
#11
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Its the intercooler pipes causing boost to go that high.
Although I'd be ALL over the dealer for boosting that high unless they were checking something else.
My dealer drives it barely above 3krpm when testing the car for something. If it's something that requires a WOT they have me do it.
Although I'd be ALL over the dealer for boosting that high unless they were checking something else.
My dealer drives it barely above 3krpm when testing the car for something. If it's something that requires a WOT they have me do it.
#13
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It's reading off the obdii which is limited by the factory sensor mounted after the turbo in the manifold. The greddy informeter is actually just reading manifold pressure. It's more accurate to read off the vac lines which usually shows a higher psi than what is read on the manifold pressure. The greddy informeter without the optional boost sensor plugs will read off the obdii which mine is doing. So it's safe to say my car could be boosting +- 1-2PSI from the IN-MF pressure reading. If you can get a boost gauge to read off the vac, that is your best bet for accurate readings.
#14
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When I took my car in to have it tuned Jestr told me it was knocking like crazy which would cause the ecu to dump excess fuel into the cylinder causing a rich mixture and black smoke to come out of your tail pipes. You definitely should have your car tuned asap.
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Apr 13, 2009 10:44 AM