stock fuel pressure for 86 951
07-10-2004, 09:33 PM
#1
Track Day
Thread Starter
stock fuel pressure for 86 951
Anyone know what the stock fuel pressure is supposed to be for an 86 951? I am installing a Lindsey adjustable FPR, and the directions say to set it 4 to 6 psi higher than stock..... Anyone know what stock is?
07-10-2004, 09:38 PM
#2
Race Director
Stock is 2.8 bar I believe (according to my gauge), though some say 2.5. Most with modded cars run 3.0 bar around 43.5psi as a cheap fix for maxed injectors, but you will need the rail gauge to determine that. What was their reasoning for putting more fuel in your car? Have you turned the boost up a little? By the way, those FPR are well known for failing, mine failed after 5 months. The best option if you need more fuel is the stock unit with bigger injectors. Maybe you should put your sig of mods up if any.
07-11-2004, 12:00 AM
#5
Three Wheelin'
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per the manual 2.3 - 2.7 bar static (33.4psi - 39.1 psi) , either jump the relay to have pump running with engine stopped, or remove the vacuum line from the FPR and check when at idle.
at idle with vacuum line connected, 2 bar (29 psi)
I would set it to 2.5 bar static (36.2 psi)
at idle with vacuum line connected, 2 bar (29 psi)
I would set it to 2.5 bar static (36.2 psi)
