How Much Horsepower On Stock Fuel Pump And Rails
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Joined: Oct 2004
Posts: 235
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From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
How Much Horsepower On Stock Fuel Pump And Rails
I will be building a 400+ HP small block for my 89 GTA soon. I am wondering what are the capabilities of the stock fuel system. Will i need a higher flow fuel pump, or what about rails, I will be getting 30# injectors.
My motor:
TFS 23 degree Kenny Dutweiler Heads CNC 64 cc.
LPE 219 cam with 1.6 roller rockers.
10.5 compression pistons.
LPE SuperRam intake system
BBK dual 58 mm throttle body.
Everything ported and gasket-matched.
SLP 1 3/4 headers
My motor:
TFS 23 degree Kenny Dutweiler Heads CNC 64 cc.
LPE 219 cam with 1.6 roller rockers.
10.5 compression pistons.
LPE SuperRam intake system
BBK dual 58 mm throttle body.
Everything ported and gasket-matched.
SLP 1 3/4 headers
Supreme Member
Joined: Sep 2001
Posts: 1,355
Likes: 1
From: MN
Car: 2009 Pontiac G8 GXP
Engine: LS3
Transmission: 6L80E
Axle/Gears: 3.27
The fuel rails will be fine with your current combo. The fuel pump depends on what pressure you are running. If you are running close to stock fuel pressue...and the stock pump is able to keep up, then don't worry about it.
HTH,
HTH,
Thread Starter
Member
iTrader: (1)
Joined: Oct 2004
Posts: 235
Likes: 0
From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
Thanks, i don't know what fuel pressure i will be running until i get the motor tuned, but probably around 50psi.
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