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E85 fuel system for 700whp 5,3

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Old 09-06-2013, 09:41 AM
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Default E85 fuel system for 700whp 5,3

I Wonder if someone know what parts I need for 700-800rwhp on e85, the engine is a 5.3 lm7 with ls1 intake.

What injectors?
In or out tank pump?
How big lines?
Old 09-06-2013, 05:21 PM
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I think about

Delphi 120lb injectors
Aem 320l E85 pumps dual in-tank
10an fuel line and an8 return line
Old 09-07-2013, 08:12 PM
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Could go 80lbs injectors
Dual pumps as you suggested
8an fuel line w/ 6an return

Run you base pressure a little high (around 68psi)
Old 09-08-2013, 01:46 AM
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Bosch 115 lb injectors
Magnafuel 4303 pump
8 feed/6return

Thats my set up and I have the same goals as you.
Old 09-09-2013, 08:17 PM
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im shooting for 1000rwhp on E85. and my setup im ordering friday is..

Twin Walbro 450lph In-tank
-8 feed/-6return
127lb FIC Bosch Injectors
Old 09-10-2013, 04:42 AM
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I would add a boost referenced regulator to the list too.
Old 09-10-2013, 09:01 AM
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And if I may suggest, some Stainless Steel Fuel Filter components. Just being around the imports and seeing some issues, for some reason or another some people have deteriorated the internals of paper type filters. One very reputable shop that I know uses 2 filters, one 100 micron filter and one 40 micron (or less) filter. At least up here in the NY we get some E85 based fuel which is dirty at times. Some of the guys have seen clogged filters and/or injectors rather quickly when switching over to E85. May be overkill but worth the extra $100 bucks or so in my opinion. My 2 cents.

Last edited by 2muchboostNY; 09-10-2013 at 09:08 AM.
Old 09-11-2013, 08:11 AM
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With E85 always go bigger if you got the cash just buy some ID2000 injectors if not something over 120's will be ok. 160s are used a lot but i hear a bitch to tune with (I dont know personally but what i hear)



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