Safe Fuel Pressure
Thread Starter
Joined: Jun 2006
Posts: 525
Likes: 6
From: Plymouth Twp. PA
Car: 92RS
Engine: LQ4
Transmission: 4L80E
Axle/Gears: 3.23
Safe Fuel Pressure
Just put in a Walbro 190lph fuel pump and just got some 61# injectors pn: 5235206. According to RBob's injector sizing spreadsheet, I am going to have to run these things ~28-30 psi. Is this fuel pressure safe for these injectors?
*Note: - Using a modifed stock FRP that is now adjustable
- Will have a new chip burnt for this change in fuel system
*Note: - Using a modifed stock FRP that is now adjustable
- Will have a new chip burnt for this change in fuel system
Joined: Feb 2006
Posts: 767
Likes: 10
From: USA
Engine: 350 TBI W/all Ultimate TBI Mods
Transmission: 700R4 Stage 4
Axle/Gears: 9 Bolt 3.27
Re: Safe Fuel Pressure
Absolutely! 94-95 7.4L trucks used 45lb injectors at 30psi. Most marine TBI used 55lb injectors @ 29-32psi
you are very safe at that pressure with those injectors
you are very safe at that pressure with those injectors
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