vietboinumba6

is there any difference between the zpi s/c pulley and the nst pulley?

chrischoi

iTrader: (2)

zpi is a lightweight

nst is a undrdrive.

i think.

imsonofagun

he's talking about the Supercharger pulley (notice the s/c in his post).

I don't really know of any differences between the ZPI and NST s/c pullies besides the look of them. That and NST has been around for a really long time and is a trusted name by many people (not saying that ZPI is bad).

Yankee21

ZPI 9psi
NST 9.5 psi

Nu_ERA

NST is much more accurate. Old S/C tC I used the ZPI Crank and "9psi" pulley and it didn't go anywhere over 8psi.
Went NST and used their Overdrive pulley and 9.5 psi pulley. Happier and more power from the NST pulleys. NST is the guys for pulleys... period. No questions

blownupmarine

I have the s/c zpi pulley and I hit 9 psi. 223 whp with 192 Torque

blownupmarine

What did you put down?

Yankee21

nice numbers! on what type of dyno?

soros151

watching.

06SuperWhite_SoCal_tC

.5 psi... Duh lol

blownupmarine

Dyno Jet

Garage1217

iTrader: (5)

I ran 252whp / 212tq with an NST pulley and supporting mods, I highly reccomend the NST That was also on a dynojet.

blownupmarine

How much did that custome intake help you out? Could you check on my set up and do you think that intake is helping me any?

Nu_ERA

To answer blownupmarine, I put down 225hp 195 tq on the ZPI pulley, DC 4-1 header, TRD exhaust. With the NST pulley, Intake, Header I put around 232 and 200tq. Forge 007 BPV was on as well