Adjustable fuelpressure ????????????

Robert_5_liter · 10-09-2001, 11:38 AM

I put an adjustable fuel regulator on a 95 cobra yesterday and and set it at 44 psi with the vac off when cold it sits at 40 with vac line hooked up and at 50 unhooked until warm where should it be set

95 cobra longtubes Hpipe 75 mm mam 70 throttle body cold air flowmasters 4.10 gears

jimberg · 10-09-2001, 12:35 PM

Set it to 39 psi with the car off. You can force the fuel pump to run (not sure if it works on 95) by jumpering the fuel pump test lead to ground with the key on the on position.

There actually is no precise fuel pressure to set it to since your computer will adapt the fuel delivered based on feedback by oxygen sensors. Just make sure that you don't set it too low or your spray pattern will suffer and your maximum amount of fuel delivered will be lowered. Fuel pressure only relates to fuel throughput, not air/fuel ratio.

------------------
351W 89 Mustang GT Convertible

10-09-2001, 11:38 AM	#1
Robert_5_liter Registered Member Join Date: Mar 2001 Location: Ohio, lorain usa Posts: 32	Adjustable fuelpressure ???????????? I put an adjustable fuel regulator on a 95 cobra yesterday and and set it at 44 psi with the vac off when cold it sits at 40 with vac line hooked up and at 50 unhooked until warm where should it be set 95 cobra longtubes Hpipe 75 mm mam 70 throttle body cold air flowmasters 4.10 gears

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
need help with testing adjustable bbk fpr	james87gt	Windsor Power	29	07-16-2003 03:00 AM
Adjustable fuel pressure regulator	mustangLX92	Windsor Power	1	07-09-2001 11:38 AM
Adjustable Proportioning Valve (Brakes)	RMARIANI	Windsor Power	2	07-05-2001 06:27 AM
Adjustable FPR recommendations	95GTS	Windsor Power	3	01-29-2001 07:27 AM
IS CAMBER ADJUSTABLE ON 86?	LOCASH	Windsor Power	1	01-02-2001 01:40 PM

10-09-2001, 12:35 PM	#2
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	Set it to 39 psi with the car off. You can force the fuel pump to run (not sure if it works on 95) by jumpering the fuel pump test lead to ground with the key on the on position. There actually is no precise fuel pressure to set it to since your computer will adapt the fuel delivered based on feedback by oxygen sensors. Just make sure that you don't set it too low or your spray pattern will suffer and your maximum amount of fuel delivered will be lowered. Fuel pressure only relates to fuel throughput, not air/fuel ratio. ------------------ 351W 89 Mustang GT Convertible