Will An In-Line Fuel Pump Help?

[Jeff Chambers]

Originally Posted by Dark_5.0

I was hoping my stroker would put out over 350RWHP so would you suggest I go with 36# injectors Jeff?

The fuel system analyzer on this site says for 420HP at the flywheel.

24# injectors 63 psi in the safe zone.
30# injectors 40 psi
36# injectors 28 psi over injected

So naturally I was about to buy some 30# injectors.

I know you have seen alot of dyno pulls and I am not doubting what you say. Just trying to better educate myself before I buy more injectors to replace my 24#ers.

I'd go straight to 42# injectors and be done with it. They can be had for less than 36# nowadays and give you the margin to not only be safe, but to grow on down the line. There's plenty of deals out there where you can get the injectors and a 90mm LMAF for less than retail on the 36# injectors alone. Remember, that there's really no such thing as too big of an injector (within reason). When properly tuned, the delivered pulsewidth is only going to be whatever is required to meet the commanded lambda.