Fuel pressure regulator ?
Drifting
Joined: Mar 2001
Posts: 1,636
Likes: 3
From: Lafayette IN
Re: Fuel pressure regulator ? (daddydahlin)
1)Does this just regulate the fuel pressure at wide open throttle or all the time.
2)another question would increasing the fuel pressure help in the 1/4 mile
2)another question would increasing the fuel pressure help in the 1/4 mile
2) Not always. Some cars run rich as they are. If your car runs too rich at WOT, backing off the FP can actually increase your performance. This is best done by tuning at a track and being able to tell what your plugs look like.
Safety Car
Joined: Mar 2000
Posts: 3,620
Likes: 2
From: Hillsboro OR
Re: Fuel pressure regulator ? (daddydahlin)
As Highhopes stated, fuel pressure is regulated all the time but it varies with engine vacuum. The regulator is referenced to intake manifold vacuum to take out the effect of the air pressure in the manifold on the injector flow rate.
Tuning by modifiying the chip is a better way than adjusting fuel pressure. The computer will readjust an changes you make to fuel pressure so any performance gains will go away over time.
Tuning by modifiying the chip is a better way than adjusting fuel pressure. The computer will readjust an changes you make to fuel pressure so any performance gains will go away over time.
