Fuel System upgrade question
Thread Starter
Race Director
Joined: Jun 2009
Posts: 12,331
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Fuel System upgrade question
I am at 540 rwhp right now. Hopefully soon here Ill jump close to 600 rwhp. Now I have heard that at or around 600(+) rwhp you need to start upgrading fuel systems. Now is that correct? I have a Walboro 255 intank right now with no issues.
any info will help
Thanks
any info will help
Thanks
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
You need to hook it up to a dyno, and check your fuel pressure under varying loads. That'll tell you where you're at. I bought a A&A SC kit, which came with a replacement pump, made by LPE. Maybe because of my previous mods, or whatever, from about 5400 RPMs up, my FP started dropping to the point where my tuner (who's very conservative) felt it was unsafe, with a stock block, and no meth. He then added a BAP in addition to the LPE pump, and there was F pressure to spare. I'm at 580 RWHP on a Mustang dyno, and 7lbs of boost.
Team Owner
Joined: May 2001
Posts: 36,836
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I agree with zeevette. Check your WOT fuel pressures and IDCs. If they're marginal, a Kenne-Bell makes a lot of sense.
P.S. The LPE pumps are Walbro 255s.
