Is my fuel pressure too high?
03-27-2006, 07:15 PM
#1
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Is my fuel pressure too high? I hooked my FP gauge this weekend and it seems to me that my fuel pressure might a bit too high. On cold start-up it's around 66-68. Once it warms up it's around 64-66 and when I get on the gas it will go to 60-62. I have the racetronix 255 fuel pump and stock everything else (i.e. injectors, FPR, etc). Is this too high or am I okay?
03-27-2006, 07:42 PM
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I have 70 #'s at idle with mine! I have the racetronix pump too, but I also have 60 # injectors. I haven't gone WOT yet, since I got the fp gauge, but it doesn't move too much under partial throttle. I can't imagine that being a bad thing.
03-27-2006, 10:36 PM
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I think what you're seeing is the pump slightly overruning the factory regulator. The stock regulator doesn't have a very large regulation orifice. The hardest thing for a regulator to do is to control idle pressure, there just isn't much fuel demand. I wouldn't worry about it at all.
