Does anyone know what to set my injector constant in HPTuners when I put my 48Lb injectors in.
Have you taken a look at 4cyltuner.com They tell you how to do it in one of the faqs. Shifted runs the site and you should be able to pick up a few thing from there.
If you have the stock ecu program on your car and NOT the s/c reflash, multiply the constant in your program by .5
If you have the gm s/c reflash on your car, multiply the constant in your program by 0.625
The formula is (old injector flow rate/new injector flow rate)*old constant = new constant
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