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Im buying heads soon, do I need a bigger fuel pump?

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Old 10-20-2009, 03:44 PM
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Default Im buying heads soon, do I need a bigger fuel pump?

sup, I currently have a cam only car making 423rwhp. I am buying a set of cartek 4x heads or 215 trick flows, I would like 450-470rwhp. I have 42 lb/hr injectors and was wondering if I would NEED a fuel pump. I hardly ever got WOT in the car, and I still baby the hell out of it. But Im not afraid to put other cars in their place. I am probably keeping my LS6 intake as well.
Old 10-20-2009, 04:08 PM
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I'd say yes.

A Racetronix fuel pump kit and hotwire harness is cheap insurance.
Old 10-20-2009, 04:15 PM
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Originally Posted by USArmyZ28
sup, I currently have a cam only car making 423rwhp. I am buying a set of cartek 4x heads or 215 trick flows, I would like 450-470rwhp. I have 42 lb/hr injectors and was wondering if I would NEED a fuel pump. I hardly ever got WOT in the car, and I still baby the hell out of it. But Im not afraid to put other cars in their place. I am probably keeping my LS6 intake as well.
My C5 is at 450RWHP through a A4, so you know with an M6 am at 470 easy and I have the stock pump that has 80K+ miles on it and I have had no issues at WOT. If your going well above 500whp, talking above 550, then I would do the fuel pump. I have 36lbs injectors, with after market rails, and they support everything I have done.
Old 10-20-2009, 04:32 PM
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i would get the pump because its a small investment for the extra insurance




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