wondering if there is a difference
tegerick
04-02-2004, 01:23 AM
hey any of yall know if ther is a difference between integra gsr and ls fuel pump?
tegerick
04-02-2004, 01:02 PM
i guess no one knows then
Kirwan
04-02-2004, 07:20 PM
You might have to wait a little more than 12 hours for the right person to come along. This isn't a very fast moving board.
Without any actual experience in the matter, I'd guess that they use the same fuel pump. These fuel injected cars use a pressurized system with return bypass; there's a fair amount of tweaking that can be done by setting the fuel pressure regulator, so long as the pump puts out enough flow. I doubt the difference between 140 and 190 hp is enough fuel flow to require a different pump. Back when I did mustangs, we didn't go to larger pumps until we'd almost doubled the stock HP (from 225 to 400).
Without any actual experience in the matter, I'd guess that they use the same fuel pump. These fuel injected cars use a pressurized system with return bypass; there's a fair amount of tweaking that can be done by setting the fuel pressure regulator, so long as the pump puts out enough flow. I doubt the difference between 140 and 190 hp is enough fuel flow to require a different pump. Back when I did mustangs, we didn't go to larger pumps until we'd almost doubled the stock HP (from 225 to 400).
whtteg
04-02-2004, 09:08 PM
They are the same. You don't need a larger one unless you are going to see 250 ish hp.
tegerick
04-02-2004, 09:56 PM
what about when the vtec come in does that make a diff. shouldnt a gsr be more powful then a ls
whtteg
04-02-2004, 10:19 PM
No the fuel pressure is changed by vacum and the extra fuel is delivered by changing the duty cycle of the injectors and the extra fuel pressure.
tegerick
04-02-2004, 10:24 PM
so i guess all the honda and acura pumps are the same?
whtteg
04-02-2004, 10:34 PM
No just the different modles of integra's. If yoiu want a higher flowing fuel pump then buy a Walboro they cost like $98 and flow 255lph.
tegerick
04-03-2004, 03:19 PM
well thanks guys
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