Crazy, I've been reading up on the NST kit and haven't heard anything negative about them.

http://www.the370z.com/engine-drivet...no-charts.html

Could you guys point me to some examples?

MY pulley's kick arse. Best $190 I spent ever (Group Buy). I'm biased and defend em vehemently. It's the one mod where I found the difference instantly noticeable. Redline should stay stock unless your running out of RPM at the track and it's more beneficial to stay in that gear than shift. Changing exhaust cams and intake manifold can move it. But I believe the Motordyne manifold would regress power peak by a few hundred rpm with it's longer runners. There is still power over 7.5k, but you are on the other side of the hill.

Not the first time I've heard that. I'm pulling the trigger on a set. How long did it take your mechanic to do the installation?

to go to a supercharger. light weight pulleys usually wont work well with sc's

there's a vid floating around youtube somewhere showing the lengths a company is having to do to remove a lw crank pulley that is fused to the crank. maybe someone can chime in on who/where this vid is

Yea, I won't be going beyond 500hp on this car so it should be fine. You also need to make sure to add an anti-seizing compound before you install them. Same thing can happen to the stock pulleys.

I had pulley's done with my CAI , intake manifold and oil cooler. Mechanics had the car for a couple days. They mentioned the alternator pulley difficult to reach and takes some effort to get them off. The key was tight on the crank pulley, they just shaved it a bit and got it on there. They got that done in about 4 hours. IT helped the front end was taken apart while working on it.