I'm going to be doing a retune on a 05 JG Silv with the blower and have a few questions. Does anyone know for sure the size injectors they put in them? It has them set as 38.9 lb/hr in the program which seems odd. Also, are there any modifications done to the fuel system like a boost referenced regulator or anything different than stock. Looking at the superchips tune that was installed in it with the hand held programmer, they have the IFR table set up with fixed values like an older truck with a vacc referenced regulator.
How much boost are they supposed to have with the stock pulley?

 

I think they are 38# injectors . No fuel mods on mine . I put a racetronics pump harness off a vette on mine to make sure the voltage stays constant . The stock pulley makes 5 psi . A 3" makes 10 psi . I ran 10 psi for a long time with no tuning mods and no problems but a broken trans .

 

Thanks, I appreciate the reply.