I was planning to order an injector and was wondering
how much horsepower can they each handle?

24lb Fuel Injectors
30lb Fuel Injectors
42lb Fuel Injectors

 

Here is a simple equation to figure it out.

5 lbs/hr = roughly 80 hp
24/5 = 4.8, 4.8 x 80 = 384hp

24lbs/hr = 384 hp
30lbs/hr = 480 hp
42lbs/hr = 672 hp

 

so wat ur saying if i get larger injectors it really doesnt increase my horsepower my stock injectors are ok 2000 gt motoblu pulleys accufab plenum and throtle body 75mm c&l cold air kit and mass air meter bassani x pipe no cats and flows

 

For what you have done to your car you wouldnt need bigger ones.

 

I have nothing to prove you wrong but why do people wih 400+ hp usually have 42lb/hr injectors if a 30lb would be fine.

That and the mongoose S/C kit which is around 360-380whp comes with 32lb/hr ones too, not 24.

 

The hp calculations I made is for flywheel hp. Also, the hp ratings are at 90% duty cycle. Thats the most that you could use them for. I believe if you use larger injectors with low pulse widths the spray will be unstable.