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Fuel pumps in series? 


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Posted: Tue Sep 18, 2007 1:30 pm 
Parts Gopher

Posts: 67

Joined: 26th Jan 2006

Location: Perth
WA, Australia

Pumps change their flow rate according to how much pressure they have to pump against. I'de go and buy a good 1:1 regulator with adjustable base and buy a bosch 044. They are good for 700hp in a NA EFI car, so at the lower pressures demanded of a carb (even blow through) you will have enough fuel for what ever you throw at it.
Posted: Tue Sep 18, 2007 9:46 pm 
Smokin em up
User avatar

Age: 31

Posts: 280

Joined: 22nd Jan 2006

Ride: XB

Location: Hobart
TAS, Australia

That is exactly what I did this morning. I looked into running the surge tank idea and in a $$$ comparason the EFI pump and the 1:1 ratio boost referenced regulator worked out heaps cheaper. Still running new lines and fittings though.

Thanks heaps!



76XBGS, 383c, custom crow cam, 4V p&p heads, Isky SS Valve+springs, extractors, 2.5"twins, MSD Ignition, Edelbrock intake, Forged bottom end, Barry Grant 750DP, thermo, discs, toploader, Holley fuel pump, SUPERCHARGED!

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