What should my fuel pressure be under boost?
06-27-2004, 04:02 AM
#1
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Join Date: Mar 1999
Location: Oak Creek, WI
Posts: 153
What should my fuel pressure be under boost?
At around 5 pounds of boost, my digital gauge only reaches 50 lbs? Isnt that a little low? I have a 12# pulley, but only went up to 5 lbs when I did the test. Can I adjust the fuel pressure by turning that screw adjustment at the FMU?
06-27-2004, 07:30 AM
#2
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Join Date: Oct 2001
Posts: 342
cheap digital fuel gauges are not fast reacting, we learned this the hard way. We bought one for around $100 and pressure never seemed to keep up. So we added a mechanical one and the digitial was always 1-2sec late, not good on a fi car. If you have a cheap digi gauge, I say swap it out
I have a Greddy pressure gauge and it acts within a split second
I have a Greddy pressure gauge and it acts within a split second
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