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Should 1 fuel pump be enough?
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deadmanTA
New User
| Posts: 6
| Joined: 03/08
Posted: 03/02/08
02:05 PM
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This is a turbo car so would one walboro GS 340 intank be enough? Under 600rwhp and ony 8-9 psi max. I have a hot wire kit to up the volts also and all the supercharger kits I've seen falling in this HP and psi range only use one pump.
99 TA A4 BGM--LS6,vic jr,317 heads,4K stall,turbo
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Posted: 03/02/08
02:27 PM
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I wouldn't chance it. I'd install two Walbro pumps in the tank and "T" them together. The additional $120.00 for the second fuel pump is cheap insurance, and a lot less expensive than an engine rebuild.
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TTiC5
New User
| Posts: 5
| Joined: 05/09
Posted: 05/14/09
11:19 AM
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 ExPerformancePlus:
I wouldn't chance it. I'd install two Walbro pumps in the tank and "T" them together. The additional $120.00 for the second fuel pump is cheap insurance, and a lot less expensive than an engine rebuild.
I agree.Not worth the chance for the money.I made 535 RWHP with 1 pump on my C5 and 60# injecters.Double pumpers for a C5 are not cheap.I'm building a twin turbo 403 right now and it will be getting 2 pumps.I know a guy with a C5 that runs a STOCK pump with a BAP and the car goes high 9s  .Hard to believe I know.
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Posted: 06/25/09
01:05 PM
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One thing to be careful about, in double pump setups you can have one pump go bad and not know it...then you put it to the wood and it goes lean and kaboom! Some people believe a larger single pump is the way to go as the result. But that could mean a noisey external pump. This is a controversial subject, and it really comes down to personal preference.
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