I have an 85mm B20vtec setup and ran stock injectors (240cc) and my car had NO power. I now have prelude (290cc) injectors, FPR is at 50psi and now the car feels much better but it's still not running at it's full potential (I felt it's optimum power before).

My question is, is 290cc injectors good enough for this setup and just need some tuning? Or will it need bigger injectors? The max psi on stock injectors is 50psi, am I correct?

 

I have read before where Honda race team has ran up to 65lbs of rail pressure with a duty cycle of 90 percent and had no reliability issues.....just a little fyi

 

On stock injectors? It's about time someone answered in this dead forum.

 

Seems like most 2.0s are run on 310's. I ran mine on 240s but never dynoed it or put it on a wideband. You can use the calculator.

 

it really comes down to compression

u better be very carefull running lean ull overexpand ur pistons


whats ur compression ratio?

50psi is not the max... but above 60psi the injectors may start to stick

 

Compression is 11:1