Single or dual pumps?
09-23-08, 11:40 PM
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Single or dual pumps?
I am installing the fuel system on my thrid gen now and I was planning on running twin bosch 044s(which I ahve already bought). I am running a GT4094r on a street ported engine. My goal is around 550rwhp w/ alcohol. I have 1000 primarys(which I might change to 850) and 1680 secondaries. Should I stick w/ twin pumps or will 1 pump work ok for me? I am running 8an feed line and 6an return.
Any help with this would be great. Thanks
Any help with this would be great. Thanks
09-24-08, 05:55 AM
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Who is doing the tuneing?
Im running 2 pumps plus the meth on my setup 850 & 1600 S-362 turbo, since you already have them i dont see a reason not to run them better to have more fuel then not enough
Im running 2 pumps plus the meth on my setup 850 & 1600 S-362 turbo, since you already have them i dont see a reason not to run them better to have more fuel then not enough
09-24-08, 06:48 AM
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Im having the guy from Rotorsport Racing tune it for me. When I talked to him he said that we would run the second pump on a boost switck set at 1 vac.
09-24-08, 07:21 AM
#4
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since you pose the question i will offer an answer...
one pump and a Kenne Bell Boost A Pump (BAP).
i run a Nippon Denso Cosmo pump directing 850/1600s w a BAP..
i have run 25%+ methanol for two seasons with the above.
if you run a similar amount of alcohol, your injector duty cycle will drop 15+% versus gasoline only. my IDC dropped from high 80s to mid 60s when i added alcohol.
making 468 ft pounds of torque.
the BAP only functions in boost. the volt gain to your fuel pump is adj. i run it at plus 20%. i log fuel pressure digitally so i know i have zero drop-off... i have run my BAP for 5 years and my pump continues to work fine.
love the simplicity V 2 pumps.
howard
one pump and a Kenne Bell Boost A Pump (BAP).
i run a Nippon Denso Cosmo pump directing 850/1600s w a BAP..
i have run 25%+ methanol for two seasons with the above.
if you run a similar amount of alcohol, your injector duty cycle will drop 15+% versus gasoline only. my IDC dropped from high 80s to mid 60s when i added alcohol.
making 468 ft pounds of torque.
the BAP only functions in boost. the volt gain to your fuel pump is adj. i run it at plus 20%. i log fuel pressure digitally so i know i have zero drop-off... i have run my BAP for 5 years and my pump continues to work fine.
love the simplicity V 2 pumps.
howard
09-24-08, 02:38 PM
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Yes I mean injected. I know I have seen cars running almost identacal setups as mine making 500+rwhp with no injection running 1 bosch 044. That is why I was wondering if I should just run one pump.
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