I remember something about showing needed injector size for a certain amount of HP... anyone got that little table handy? Thanks in advance guys and gals! Looking for how much HP 550, 650 and 740 cc injectors support. Thanks

 

go to rc engineerings home page and you will see a worksheet there all you have to do is plug in the info aqnd wala there is the size you need

 

take the injector flow rate and divide by 10.5 to convert to lbs/hr
multiply by maximum injector duty cycle you wish to see (80% is usually the standard max so multiply by .8)
divide by bsfc (.55-.6 for most turbo cars)
the answer is how much hp each individual injector should be able to support
multiply by # of injectors used (i'm assuming 4) and that should be a good estimate of how much power those injectors can support at that pressure (43 psi standard)

you may also want to know how to figure out new flow rate when fuel pressure is changed. then you can get a good idea of what pressure you should run to support a specific amt of power. good luck