first off is this hard to switch out?


second in order to run 7.5 psi what do i need to have? do i need some sort of fuel management and injectors or fmic and basic comptech supercharger package good?

 

I saw this done at Comptech headquarters on a Bay Area owner's car. The whole job took about 2 or 3 hours, but this included 3 runs on the dyno. You shouldn't do this without a dyno. You need to know if the fuel pressure needs to be bumped up. On his car, the fuel pressure reg needed to be turned about 2 turns to make the a/f acceptable after the new pulley went on. Nothing else from the stock Comptech I/C kit needed to be messed with.

 

awesome. so i don't need injectors or anyhting?

Last time I dyno'ed they turned it 5 times but nonetheless i'm going to dyno afterwards. you know if this is a hard process?

 

Turning the fuel pressure on a Comptech regulator is easy. It all depends how much more pressure you need and if the regulator has enough left. That's why you need to do it with a dyno.

 

i mean is it a hard process changing out the pullies?

 

The total time the Comptech guy spent on doing the pulley swap was about 1 hour. The rest was dyno time, "fiddle" time and coffee time.

 

I had to turn my fuel up 6 full turns. Still a little lean at lower rpms range, but its fine while in boost.

 

I'm not too concerned about a slight lean condition below vtec. It's under high boost that the a/f is most critical. When there's little or no boost, it's no different than a NA operation. Or am I blowing it out my butt?

 

 

I'm trying to ask if I'm wrong for not worrying about the a/f when not in high boost. It seems people with F.I. obsess over the a/f across the whole rpm range when perhaps it's only critical under boost (ie. in the high rpm range for supercharged cars).