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Registered
Join Date: Jun 2006
Location: Vancouver, WA / Portland, OR
Posts: 23
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Fuel Pressure question
After reading the few threads I could find on fuel pressure, I came to the conclusion that with an aftermarket FPR the psi should be at 42.5 or 3 bar and should be adjusted at idle with the vacuum line removed. At idle, with the line connected, the gauge was bouncing around 45 or 47. When I removed the vacuum line the psi jumped to around 55psi. So I adjusted it down to 42.5 and reconnected the vacuum line and now it sits steadily at about 42.
I was wondering if there was any reason why the pressure was set so high and since it was, if there would be any effects? My car has the GURU MAP, 3" exhaust, and running about 16 psi of boost. I took it out afterwards and it seemed to be better, but I could be imagining things.
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'87 951
Last edited by TheStock; 08-04-2006 at 11:53 AM..
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