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Boost Psi?

fabb

By fabb,
in Engines & Forced Induction

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fabb Apprentice

fabb

Posted
Posted (edited)

hi guys...

ok ill quickly give you the low down of my car.. I have a 1994 r33 gts-t... Stock besides... muffler, ,manual blitz Boost controller, greddy FMIC piping, pod filter ,turbo timer, boost gauge

Im currently running stock psi (7-8 psi i believe?) and i am planning to push to 10 psi? im just wondering what is the highest/ safest psi i would be able to run?..

thanks, all opinions are appreciated..

Edited by fabb
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paulr33 Grand Master

paulr33

Posted
Posted

10psi is OK, but once you turn it up, you may likely hit R&R which is where the ECU will cut the timing and make it run sluggish to protect itself

it basically has a safety protection built it to stop people doing things like that. to get around it you need to remap it or get a stand alone

try 10psi and see how you go. when you hit R&R its dead obvious, the car will be accelerating then it will feel flat for a bit, then the power will come back on again

also youll fry your std clutch so buy a heavy duty single plate

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89CAL Grand Master

89CAL

Posted
Posted

FYI I have a 1994 gtst and when I would it up to 10psi on stock ecu it just fuel cut at about 4500rpm. At 8psi I had really rich (10:1) afr mixtures.

You may have better luck then me just using my car as an example. If your car does do this, a new ecu is a great upgrade :)

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KiwiRS4T Grand Master

KiwiRS4T

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Just keep turning up the boost until you hit R&R (which is designed to protect your engine anyway) and then back it off a little until the R&R goes away. And make a note to yourself if you want any power mods you are going to have to get a chipped ecu or an aftermarket one such as Link/Vipec or PFC.

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