Fuel pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

smoky02 · 05-26-2013, 05:06 PM

I'm running a walboro 255 but its max psi 60. Should I upgrade? Or is that going to be enough pressure?
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wgeyer88 · 05-26-2013, 07:21 PM

Walboro 255 will be plenty of pump! It's actually a popular upgrade in all LS powered cars. Should supply plenty of fuel for up to about 500-600 hp N/A! Many LS turbo trucks run these.

BR3W CITY · 05-27-2013, 01:26 AM

Quote:

Originally Posted by wgeyer88

Walboro 255 will be plenty of pump! It's actually a popular upgrade in all LS powered cars. Should supply plenty of fuel for up to about 500-600 hp N/A! Many LS turbo trucks run these.

A single 255 won't effectively support that much power. At just over 400 I'm towards the top end of the 255's power range. Anywhere near 5-600 I'd be looking at running TWO 255's or a larger pump.

smoky02 · 05-27-2013, 07:28 PM

Are you thinking that I should probably buy a different pump? Also what PSI should I be looking for at my fuel rail?

BR3W CITY · 05-27-2013, 09:44 PM

Well you didn't really tell me what your running, but if its under 425-450, you'll be fine. If you are seeing more than that, or running a turbo, nitrous etc...then I'd say you'd want to consider something bigger.

Its about 58psi at the rails.

502ms · 05-28-2013, 12:24 AM

Check out my build thread. I'm running the Holley Fuel Pump and FPR. It's good for 900HP iirc
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05-26-2013, 05:06 PM	#1
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Fuel pump I'm running a walboro 255 but its max psi 60. Should I upgrade? Or is that going to be enough pressure? Posted via Mobile Device __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

05-26-2013, 07:21 PM	#2
wgeyer88 Registered User Join Date: Aug 2012 Location: Denver, Co Posts: 245	Re: Fuel pump Walboro 255 will be plenty of pump! It's actually a popular upgrade in all LS powered cars. Should supply plenty of fuel for up to about 500-600 hp N/A! Many LS turbo trucks run these. __________________ Will 1970 CST10 SWB LQ4/4L80E 2004 Silverado (sold) 2007.5 Dodge Ram 2500

05-27-2013, 07:28 PM	#4
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Re: Fuel pump Are you thinking that I should probably buy a different pump? Also what PSI should I be looking for at my fuel rail? __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

05-27-2013, 09:44 PM	#5
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Fuel pump Well you didn't really tell me what your running, but if its under 425-450, you'll be fine. If you are seeing more than that, or running a turbo, nitrous etc...then I'd say you'd want to consider something bigger. Its about 58psi at the rails. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

05-28-2013, 12:24 AM	#6
502ms Registered User Join Date: Aug 2011 Location: Atlanta, GA Posts: 1,523	Re: Fuel pump Check out my build thread. I'm running the Holley Fuel Pump and FPR. It's good for 900HP iirc Posted via Mobile Device __________________ Best Regards, Leon M. Instagram: @TheDirtyDianah Bagged \| 6.0L LS \| T-56 (6-Speed Manual) \| Turbo Burnout/Rolling Video: Chevy C10 Stepside 6.0L LSx & 6-Speed Manual



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