what size injector, can i go up to, with the stock computer in my 93 z??????


93 m6 everybolt on

 

Is there a reason why you want to go with bigger injectors?

Fuel Injector Sizing Calculation

 

You can go up to any size you want up to 55lbs/hr I believe. Anthing above stock and you will most likely run rich without a program.

 

Anytime you go to a bigger injector you're going to run rich without reprogramming the computer. 30 lb/hr injectors is about the biggest you can get away with using the stock tuning and an adjustable fuel pressure regulator (but what's the point there?). The wall you eventually hit is going from the low impedence injectors to the high impedence injectors... or is it the other way around? I forget at the moment, it's 3:30 am after all. Either way, one type requires a special computer to run.

Just curious, what is your reason for changing injectors?

 

Doesn't make sense to change the injectors size on a stock engine. Especially one that is batch fired.