NST (NonStopTuning) 370Z VQ37HR Pulley Kit Review w/ Dyno Charts

semtex

I'm curious too. With the Stillen pulley, you need a new (shorter) belt. You don't need a new belt with NST. That makes me wonder if it's really underdriven. Looking at the original post, NST wrote "The NST Kit includes a 10% Underdrive Crank Pulley along with a 10% Overdrive (faster) Alternator Pulley. This means that the alternator will run at OEM speeds when the NST kit is used." I guess that's why they still use the OEM belt. But if the alternator is running at OEM speeds, doesn't that kinda cancel out the effect of the underdrive crank pulley? I'm by no means an expert on this stuff, so I'm just asking the question.

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"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.