k20em2

I wanted to know if I would have to change from a returnless fuel setup if I eventually wanted to raise the boost. After I build up the internals, I plan to turn the boost up to 15 psi. Can a returnless fuel set up be good for only low boost or would I have to convert it. I'm using an aeromotive billet digital fmu. I heard I can still use this as long as I get bigger injectors.

ion_four

If you "turn up the boost" use shouldn't use an FMU, so the point will be moot.

Full-Race Geoff

it really depends how much power you are trying to make. If you boost a little turbo to 15+ psi it wont be as dangerous as a 60-1 at that much boost.

What kit and what size turbo do you run?

i would actually say its worth considering that FMU system with some sort of a piggyback and you might be ok, the digital FMU is pretty interesting.

k20em2

Its a custom setup using an sc34. What do I need to do then, to run more boost?

Full-Race Geoff

you need to get a wideband on the car. I also definatley recommend running a j&s knock setup because your car has no control over timing