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Just installed a racetronix fuel pump.It came with new wiring and gaskets new pickup filter. Has anyone installed this kit.Is it good or should i have installed a stock pump. They had agreat price on the forum
Just installed a racetronix fuel pump.It came with new wiring and gaskets new pickup filter. Has anyone installed this kit.Is it good or should i have installed a stock pump. They had agreat price on the forum
will a stock fuel pump flow enough for a 383 making about 500 hp? i'm going to be getting 42# injectors for it... or do i have to get a high flow fuel pump?
will a stock fuel pump flow enough for a 383 making about 500 hp? i'm going to be getting 42# injectors for it... or do i have to get a high flow fuel pump?
Nope, it won't work.......Ask me how I know!.......LOL
The stock fuel pump is only good up to about 400 HP.
I have a stock GM pump for a GNX in mine. Dont ask me why, but I bought it years ago before I knew there was a Racetronix/Walbro pump. I am pushing 500hp. Maybe I need to upgrade and see if I am missing something.
Fuel pressure on the Dyno kept dropping down to ~35lbs during the pulls, and that was with pressure set at 52lbs, using the stock fuel pump and 42lb injectors on my 383. Once the stock fuel pump was pulled and replaced with the 255gph I had with me, Ed cranked down the fuel rail pressure and then subsequent pulls showed constant pressure with no dropouts throughout the pulls. Will didn't experience this because he changed his out to the HP Pump before we went to the Dyno, I had my HP Fuel pump with me but didn't change it because I thought I could get away with the stock unit.................I was Dead WRONG!
Fuel pressure on the Dyno kept dropping down to ~35lbs during the pulls, and that was with pressure set at 52lbs, using the stock fuel pump and 42lb injectors on my 383. Once the stock fuel pump was pulled and replaced with the 255gph I had with me, Ed cranked down the fuel rail pressure and then subsequent pulls showed constant pressure with no dropouts throughout the pulls. Will didn't experience this because he changed his out to the HP Pump before we went to the Dyno, I had my HP Fuel pump with me but didn't change it because I thought I could get away with the stock unit.................I was Dead WRONG!
Noland
yeah...that'll give you a sure fire sign that there's a problem. thanks for the info! my project is still some years away though. i have to get a house before the car... but i still have the engine!
Fuel pressure on the Dyno kept dropping down to ~35lbs during the pulls, and that was with pressure set at 52lbs, using the stock fuel pump and 42lb injectors on my 383. Once the stock fuel pump was pulled and replaced with the 255gph I had with me, Ed cranked down the fuel rail pressure and then subsequent pulls showed constant pressure with no dropouts throughout the pulls. Will didn't experience this because he changed his out to the HP Pump before we went to the Dyno, I had my HP Fuel pump with me but didn't change it because I thought I could get away with the stock unit.................I was Dead WRONG!
Noland
Noland, You have 42#'s, and I have little 30#'s, that may be why my fuel pump is able ot keep up for the short duration