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Fuel pump question for 650+whp

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Old Jul 29, 2016 | 08:46 PM
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Default Fuel pump question for 650+whp

Ls3, ecs supercharger with 3" catless exhaust,2" primary headers, ported intake manifold and throttlebody and later down the road a mild cam shooting to be in the 700whp range
I'll be on e85 so question is what fuel pump would y'all do?

Replace stock pump with
-Walbro 450 intank fuel pump single or do 2 walbro 450s

Or keep stock pump in tanks and add
-Bosch 044 320LPH+ which is rated for 680hp
Or
-Proflow EFI 380LH which rated for 1000hp

Last edited by advancivic; Jul 29, 2016 at 08:49 PM.
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Old Aug 19, 2016 | 12:47 PM
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Default I did dual 340s

I dropped my tanks, installed lingenfelter regulator block off plates both tanks, and dual racetronix 340lph e85 rated pumps in drivers side... all new wiring harnesses from racetronix so that one pump is always on and second pump is boost reference(I got 7psi hobbs)... added -8an feed and -6an return, Teflon coated, e85 rated lines... racetronix boost reference style regulator... 3/4" Inside diameter fuel rails(overkill)... dedicated motorsports ethanol % sensor...

This setup is good for well over a 1000rwhp and was a lot of work to install and probably overkill for most. I just didn't want to have to touch it again other then upgrading injectors as needed.

Dropping the tanks is a P.I.T.A...

This looks easy and like just the right amount of extra fuel capability for your goals...
http://www.eastcoastsupercharging.co...ategory_id=302
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Old Aug 19, 2016 | 10:55 PM
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Default

Ecs kits. Dropping the tanks sucks.
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