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03-13-2009, 09:29 AM
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#1
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Join Date: Oct 2008
Posts: 586
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LS1 fuel pump reviews & ?'s
For those of you with modified LS1 engines, did you need to change your fuel pump or system? how much power can the stock unit support? anyone running 500+HP/ 600TQ on a stock unit? If the pump was changed, did you increase the size of the lines?
Although the stock ports measure 3/8" OD, there are about 1/4" ID whereas a steel 3/8" OD line is about .33" ID.
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03-13-2009, 11:13 AM
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#2
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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generally, based on what ive read, youd want to upgrade the fuel pump if you put a bigger cam in it, might need injectors as well. and if u go with a 150shot or higher, youd want 2 upgrade the fuel pump to be safe. depending on your application, i dont think u have to change the lines with a 255lph fuel pump either.
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01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
Last edited by 98tadriver; 03-13-2009 at 11:13 AM.
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03-13-2009, 11:43 AM
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#3
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,936
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+1, even if its working well, its a safe thing to replace with a new one. If you plan on spraying a big shot you could always run a stand alone fuel supply...
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-13-2009, 11:45 AM
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#4
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Resident Camera Guy
Join Date: Aug 2004
Location: North Jersey
Posts: 10,971
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As far as reviews go I installed a Walboro 255# pump in my 95 Z from Racetronixs. Price was to good to pass up and the install went smooth as can be. No complaints so far as it meets the demands of my motor!
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03-13-2009, 11:46 AM
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#5
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,936
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Alex, did you get the hotwire kit too?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-13-2009, 11:47 AM
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#6
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Resident Camera Guy
Join Date: Aug 2004
Location: North Jersey
Posts: 10,971
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I opted out on the hot wire kit at the time, but future plans do include a 98+ plastic tank and the hot wire kit.
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03-14-2009, 10:36 AM
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#7
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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Quote:
Originally Posted by ar0ck
I opted out on the hot wire kit at the time, but future plans do include a 98+ plastic tank and the hot wire kit.
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99+ 
__________________
01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
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03-14-2009, 11:53 AM
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#8
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12 Second Club
Join Date: Aug 2004
Posts: 2,923
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dual intank here
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2016 Lamborghini Huracan LP610-4
2012 Lamborghini Gallardo LP560-4 Spyder
2013 Nissan GT-R Black Edition
1999 Trans Am WS6
2000 Trans Am WS6
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03-14-2009, 10:58 PM
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#9
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Join Date: Oct 2008
Posts: 586
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Quote:
Originally Posted by GrandmasterCow
dual intank here
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Did you do this because the stock pump is insufficient for your engine or just to 'know' you have enough fuel. Did you increase your line sizes? roughly what kind of power does your engine have?
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03-14-2009, 11:35 PM
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#10
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,620
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Alex, how did the walbro install go?
__________________
1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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03-14-2009, 11:52 PM
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#11
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Join Date: Feb 2009
Posts: 62
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addon:
Has anyone replaced the fuel filter to install a larger one? I had my fuel filter for 1 year, it clogged and sure enough burnt the wires on top of the fuel pump causing my car to stall and die in the left lane on the Turnpike. This all happened days before leaving to iraq so I cut a the access hole removed and replaced the pump in 2 hours.
Last edited by PlanDefeat; 03-14-2009 at 11:55 PM.
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03-14-2009, 11:54 PM
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#12
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,620
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plan, has a picture of where you cut?
welcome.
__________________
1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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03-15-2009, 02:07 AM
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#13
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12 Second Club
Join Date: Aug 2004
Posts: 2,923
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Quote:
Originally Posted by TaKid455
Did you do this because the stock pump is insufficient for your engine or just to 'know' you have enough fuel. Did you increase your line sizes? roughly what kind of power does your engine have?
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well, i'm boosted so i needed to make sure i have enough fuel. i'm switching them out for Aeromotive inline pump, boost ref. regulator, and braided lines and new fuel rails.
__________________
2016 Lamborghini Huracan LP610-4
2012 Lamborghini Gallardo LP560-4 Spyder
2013 Nissan GT-R Black Edition
1999 Trans Am WS6
2000 Trans Am WS6
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