The car I'm working on has a paxton kit on it now. He blew the motor, so we're building a 383 bottom end now. This paxton kit has it's own fuel management system(three 50lbs injectors that sit behind the TB and come on at I think 4lbs of boost) standalone. The only change in the fuel whould be bigger injectors(30lbs). I know the pcm need a tune after all this(bigger cam,injectors,383bottom end). I was going to have fast chips do the tune, so here's my ?(sorry so long), Can I get ride of the paxton injector and computer that came with it and have Fast Chips tune the computer with the blower or, just have them tune the computer for bigger injector and the 383 bottom end( and cc306) it will have and run the paxton computer and injectors.

Just not sure what to do here. Thanks for any advise.

 

Yes.. have them program it as a stock engine and do the rest of the fuel setup with the SuperFMU from the paxton.. If I am not mistaken it uses siemens 34.8 # injectors not 50.

Check it out...

The system will start pumping fuel at 1 psi of boost and increment per 1 # of boost as lights progress to the orange and red up to a max of 10psi. The scale can be changed to 1.5#/light etc etc etc...

Hope this helps

 

Thanks, I'll do that

 

I advise you to ditch the paxton, its probably an SN93... Change the head unit but keep the FMU.

I have it and I am getting rid of it.

 

It's a friends car, and I've told him to dich it aswell. He seems to like it though.