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need electric fuel pump

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Category: Allis Chalmers
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=10890
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Topic: need electric fuel pump

Posted By: jeff n
Subject: need electric fuel pump
Date Posted: 10 Apr 2010 at 7:51pm

I need some help i need an electric fuel pump to increase my fuel presser.

I need to increase it 25 to 30 psi. Where can i find one ? any help would be grateful,Thanks.Jeff.

Replies:

Posted By: Coke-in-MN
Date Posted: 10 Apr 2010 at 8:25pm

Only ones I know that put out that pressure are the in-tank type , small pumps I have used have 12 PSI tops that i have seen . In tank require cooling from tank content to have long life.

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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.

Posted By: BrianC,Ont
Date Posted: 10 Apr 2010 at 11:13pm

Jeff; Check with your local speed shop, or Summit Racing, Barry Grant, Areomotive, Holley, Mallory, and others have pumps that will work.

Posted By: Steve in NJ
Date Posted: 11 Apr 2010 at 7:46am

What's the application? As Brian mentioned, you'll need a racing pump for that kinda of PSI. Just make sure whatever you're feeding is able to handle the pressure. Most carburetors usually will handle 5-6 psi at the fuel bowl. Anymore than that (unless its a big inch Pro Stock engine with a pair of 1100 CFM Dominators) will have problems. If its a late model automotive F.I. engine most need 30-45 PSI at the fuel rails. For either application, don't forget to install a fuel pressure regulator in the fuel system, and on the electrical side, don't forget to wire in a relay to handle the electrical load of the pump... HTH
Steve@B&B

Posted By: injpumpEd
Date Posted: 11 Apr 2010 at 8:37am

most important thing on a fuel pump is volume not pressure. Are you trying to feed a ROOSA that much? I use a HOLLEY 15 psi on my Roosa. Too much feed pressure to a Roosa will spike its transfer pump pressure and seize the head & rotor! be careful, Ed.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: thumb farmer
Date Posted: 11 Apr 2010 at 8:23pm

Ed is right if your feeding a rosamaster. I ran a blue holly on our7580 for like 5yrs. without problems. also fed the XT with the same pump set up for pullen.lived forever . never siezed a pump.

Posted By: mlpankey
Date Posted: 11 Apr 2010 at 8:26pm

Pro stock motors run 3.5 psi just use two pumps for alot of volume.

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