Maximum fuel pressure....
Thread Starter
Junior Member
Joined: Dec 2001
Posts: 883
Likes: 0
From: calgary, alberta, canada
Maximum fuel pressure....
Hey guys, what's the max fuel pressure that my stock 94 VTEC fuel pump can provide? I've heard a bit over 100. Can anyone verify this please! Would it be possible to run 7 psi of boost and only use an 8:1 FMU? Thanks
Joined: Apr 2002
Posts: 3,523
Likes: 0
From: W.A
Re: Maximum fuel pressure.... (ludelvr)
Ok the stock fuel pump is good for only about 75psi max.
Now are you planing to run stock injectors and a 8:1 fmu? because you will need at least a 10:1 otherwise you will run to lean.
I honestly wouldn't run more then 4psi if you plan to use a stock pump.Upgrade it is cheap insurance.
Now are you planing to run stock injectors and a 8:1 fmu? because you will need at least a 10:1 otherwise you will run to lean.
I honestly wouldn't run more then 4psi if you plan to use a stock pump.Upgrade it is cheap insurance.
Honda-Tech Member
Joined: Jun 2001
Posts: 2,763
Likes: 2
From: Dark Aether
Re: Maximum fuel pressure.... (ludelvr)
The B series pumps have an interal bypass valve that will limit them from flowing above 75 psi:
Do not attempt to boost on the stock pump unless you are running engine management (like Hondata) and big injectors (at least 440cc or more).
Sonny
Do not attempt to boost on the stock pump unless you are running engine management (like Hondata) and big injectors (at least 440cc or more).
Sonny
Thread
Thread Starter
Forum
Replies
Last Post