9honda5civic

I have a b16a with 11.5:1 compression i want to run e85 so my question are rc650cc injectors large enough for e85 or should i buy 1000s thanks

Marvin1985

iTrader: (5)

The question you should ask is if they are compatible with e85.

9honda5civic

On the faq page on the rc injector website it says that the injectora can run on high concentrations of alcohol/methanol

jbpnoman

Do the math for the flow rates vs. power, and then take into consideration that E85 takes 30-40% more fuel. Increase injector size from there. Before you can do the math, you need to either know how much power you're making, or at least know how much power you plan on making.

WHP target multiplied by 6cc per WHP = total cc flow required
Total cc flow required devided by number of injectors = flow per injector required for standard fuel
flow per injector required for standard fuel times 1.3 = flow per injector required for E85.

X whp x 6cc/whp = Y cc
Y cc / 4 inj = Z cc(gas)
Z cc(gas) * 1.3 = T cc(E85)

9honda5civic

230 hp x 6cc = 1380 cc
1380 cc / 4 inj = 345 cc
345 cc x 1.3 = 448.5 cc(e85)
650 cc - 448.5 cc = 201.5 cc available
now 201.5 cc is about 30% left for pulse width tuning

jbpnoman

There ya go, then. Teach a man to fish...

9honda5civic

Thank you thatll save me alot of money now im new to tuning is 30% enough pulse width left in the injectors?