big blocks
09-11-2014 | 05:13 PM
#11
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Joined: Nov 2004
Posts: 14,090
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From: On A Dirt Floor
35psi is not too much fuel psi by any stretch.
Sounds like this might have had a Procharged engine in the boat - or something else that needed such a high flowing pump.
By any chance does this have a water crossover in place of the recirculating pump ?
And/or does it have a t-stat ?
What water temp is this running ?
Water temp is very critical to EFI because of cold start programming, ie: fuel enrichment, and etc.
I have a 1999 baja h2x recently put a 415hp in it cause motor was busted when we purchased it. It has a air motive aftermarket fuel system on a mpi set up. Should I put a new stock fuel pump and start back like factory! My problem is it loads up in no wake zones and the computer messes with the timming! Next thing you know it wont start for a while!! Just looking for some good advice cause im ready to carb and intake it and be done with it!! Runs great other than the fuel preasure not cutting back at a idle!
By any chance does this have a water crossover in place of the recirculating pump ?
And/or does it have a t-stat ?
What water temp is this running ?
Water temp is very critical to EFI because of cold start programming, ie: fuel enrichment, and etc.
Last edited by SB; 09-11-2014 at 05:15 PM.
09-11-2014 | 06:05 PM
#12
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Joined: Aug 2013
Posts: 1,037
Likes: 3
From: FredVegas, Va
A stock regulator wont have a large enough return line to bleed off the excess fuel pressure, cause too high of fuel pressure and causing the problems he's seeing.
Guess I shouldve wrote that instead of what I did, sorry for the confusion.
I believe donzi matt is spot on
Guess I shouldve wrote that instead of what I did, sorry for the confusion.
I believe donzi matt is spot on
09-12-2014 | 10:36 PM
#20
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Joined: Sep 2014
Posts: 37
Likes: 0
Loads up so bad the fuel burns your eyes sometimes! And leaves a black film on back of boat from rich fuel!! Made me loose intrest in it ! Love my boat always wanted a big block. I tried to do it right spared no expenses now just the little things I would like to get worked out befor ed the end of season here in ohio!! Coming soon!!
Last edited by baja h2x; 09-12-2014 at 10:39 PM.
