Civic89stdB16

i have 780cc prescions p&h injectors how much power can they support on e85. thanks

96 GSR-T

I would think you couldnt get 400whp out of 780's, depends on the dyno

91civicDXdude

If you are close to your power goal and maxed on duty cycle, raise fuel pressure. Going from 45psi stock to 60psi will net you around 920cc flow rate. It would be best to check with manufacturer first though to determine the maximum safe fuel pressure. Some injectors actually develop a better spray pattern at higher than default pressure.

Karl Buchka

780cc injectors at 85% dc on a 4 pot with E85 are good for 340bhp at a bsfc of 0.7.

Civic89stdB16

thanks for the imput i was just looking to get around 315whp out of them. thanks

SovXietday

I'd be REALLY careful with doing that, especially because most of us are using 1:1 rising rate FPRs and a normal intake Walbro 255 is not all that stable above 60psi if I remember correctly.