Fuel pressure regulator. May 25, 2013, 10:29:37 AM I've been trying to find an answer on this forum and on the internet without any luck. From what I have read the pressure regulator on my "86" stock 5.0 engine was to be set at 39 psi. Now that I have an "87" Mustang 5.0 HO engine with a stage #1 cam, dual exhaust, and MSD distributor, how do I know what my fuel pressure regulator should be set at? I found an adjustable BBK regulator and gauge that mounts to the rail. Now I need to know how to set it up properly. Thanks! Quote Selected
Fuel pressure regulator. Reply #1 – May 25, 2013, 10:59:38 AM Just set it to 40. Its really not that critical. Quote Selected
Fuel pressure regulator. Reply #2 – May 25, 2013, 11:31:57 AM Quote from: bryan163;415992Just set it to 40. Its really not that critical. That's exactly where it's at. Thanks! Quote Selected
Fuel pressure regulator. Reply #3 – May 25, 2013, 01:24:46 PM With or without vacuum connected ??????????????????????????? Makes a big difference !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!43 with no VACUUM Quote Selected
Fuel pressure regulator. Reply #4 – May 26, 2013, 09:57:55 AM Quote from: TOM Renzo;415999With or without vacuum connected ??????????????????????????? Makes a big difference !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!43 with no VACUUM All the Ford literature I've read on the '80s and early '90s SEFI systems state 39 psi, never have I seen 43... Quote Selected
Fuel pressure regulator. Reply #5 – May 26, 2013, 01:25:09 PM the CFI FPR's are factory adjustable, just remove the top little freeze plug or the aftermarket replacement types with a plastic top to reveal the allen head adjustment.you just cut off the mounting area of the FPR on a CFI and keep that part along with the FPR and you saved a lot of money.they do not however take a vac line but thier design is very reliable. Quote Selected
Fuel pressure regulator. Reply #6 – May 26, 2013, 02:09:18 PM Quote from: jcassity;416042the CFI FPR's are factory adjustable, just remove the top little freeze plug or the aftermarket replacement types with a plastic top to reveal the allen head adjustment.you just cut off the mounting area of the FPR on a CFI and keep that part along with the FPR and you saved a lot of money.they do not however take a vac line but thier design is very reliable. That's good to know. Thanks! Quote Selected
Topic: Fuel pressure regulator. (Read 1387 times)
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