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E85 Injector and fuel pump sizing

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Old Dec 23, 2019 | 09:19 AM
  #1  
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Default E85 Injector and fuel pump sizing

I am planning on ordering a forged short block and reusing my AFR 205 heads and LS6 intake with XER273HR 224/230 .581/.588 114 LSA. I will end up with about 9.5:1 compression with the intention of buying a Pro Charger at some point mid to late next year. I intend to run somewhere around 8-12 lbs of boost. I am having trouble figuring out what size injectors and fuel pump I would need.

1. If I wanted to run E85 what size fuel injectors and fuel pump would I need?
2. Could I buy the large enough fuel injectors and fuel pump I need for the Pro Charger now?
3. Should I wait until I get the Pro Charger to upgrade the fuel system?
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Old Dec 23, 2019 | 01:06 PM
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Depends on your HP goals , what displacement is the short block ?
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Old Dec 23, 2019 | 04:46 PM
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Displacement 346. HP goals are roughly 600. I don't see myself really wanting to push past 700.
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Old Dec 23, 2019 | 06:07 PM
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80 lb injectors running at 58 psi base pressure will get you to 600 easy and 700-750whp will be pushing them to the limit with e85 . As for pumps twin walbro 450LPH will be more than sufficient.
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Old Dec 24, 2019 | 09:09 AM
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Thanks, If I ran twin walbro 450LPH and 80 lb injectors then added boost later on would I run into issues? Assuming I get it tuned of course.
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