Okay so im looking to get new fuel injectores and im debating on the size so im trying to see what people have for opinions?

Its a Built d series, just the bottom end is built and im boosting it, im shootin for somewhere between 320-350whp on e85.

thanks in advance for all the help and advice

 

Well the way you can get an idea of fuel injector sizing is by factoring for 6cc of injector per whp. E85 requires about 30% more fuel than a typical gasoline setup so that has to be factored in as well.

350whp x 6cc = 2,100cc total flow
2,100cc / 4 inj = 525cc (on gasoline)
525cc x 1.3 (or 130% flow required for E85) = 682.5cc minimum

You could go with a set of 750cc's safely or give yourself room to upgrade by going with either 880cc or 1000ccs. I daily my GSR on E85 and 1000cc injectors with no idling issues. Your call....

 

If you use this HP calculator and use a BSFC of .750 it will get you pretty close.

http://www.injectordynamics.com/hors...alculator.html

 

i would 1000cc and scale them back with whatever your tuning with

 

Just pick up ID1000cc's and you will have plenty of injector with some room to spare and a great runing injector.

 

id1000s are the truth!

 

thanks everyone for your help