dkmesa350z

iTrader: (3)

I had the Unorthodox lightened underdrive pulley set on my 350z. I did it at the same time as my plenum spacer, but the butt dyno approved of the combined effect of the two mods. I would guess most of that was attributable to the spacer though.

Upscale Speed

iTrader: (18)

Is the NST crank pulley OEM size or under driven? That set comes with the alternator and crank only right?

Upscale Speed

iTrader: (18)

Did you experience any side effects due to the under drive? Did it seem like your engine revved faster?

alfredo24pr

iTrader: (1)

Yep, and I will quote NST to answer the remaining of your question:

"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. Extra power, torque, and response... no need to worry about a weak battery, dimming lights, or poor a/c performance at idle. "

I'll be posting an initial impressions review soon on my build thread.

Upscale Speed

iTrader: (18)

Hmm...that sounds great Alfredo. I anxious here your impressions. Also where did you buy the NST pulley set from and what was the cost?

alfredo24pr

iTrader: (1)

I already wrote a first impressions review on my build thread.
I bought it from NST, but they sucked at customer service. They don't even have a phone number to reach them. I got my order after claiming a report to the bank.

However, there is a guy on the370z forum that has NST pulleys in stock. No wait time. Check post #2:
Best crank pulley? - Nissan 370Z Forum