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Originally Posted by choaderboy2
Super lean for wide open throttle high load conditions. But your readings are probly from the dyno jet and not accurate.
SR20's with stock compression make the best power at 13.2:1 or so. This does not give you much safety margin. High compression SR's seem to like about 12.7:1 or so and hardly gain anything when you lean them out.
Mike
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Originally Posted by 97SE-R C2
Yes, you are running very lean. I'm surprised the shop didn't warn you of this. Get the Nismo Adjustable Fuel Pressure Regulator. Its a direct replacemnt for your stock one but it's adjustable. You need to raise the Fuel pressure. Better yet you could buy an apexi SAFC and have it tuned all across the board. the nismo will help for sure though. You can get it from MossyNissan.
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How will i know about the right figure like the 13.2:1 Will the FPR have a guage that i would be able to read it from ? Should I still buy this FPR if I buy a CAI... wouldnt the CAI help the engine run a richer?
