What are the difference between the UR Ultra S Underdrive Crank Pulley, and the UR Ultra SS Crank Pulley Set?http://performancenissanparts.com/ca...02_153_174_380

 

I think one is only the crank pully and the other is the crank pully and accessory pullies as well.

 

which one is the one to get?? is the more expensive one worth it?

 

Ya the more expensive one comes with all the pulleys...but no belts

i think ive seen it sold somewhere with the belts included ive forgotten where though (ive been looking to get these for myself soon)

 

on that website i posted the belts are a $30 option...is there much more that will help with performance in the more expensive one??

 

Read the advertisements by Unorthodox Racing about an undersized crank pulley versus under driving the accessory pulleys.

For a retailer, UR is short on hype and long on facts.

 

from what i have heard, all you really need is the crank pully

 

From my understanding, the crank is the only one that will provide gains. And roughly 80% of those gains come from it being lighter than stock and the other 20% comes from it being an underdrive pulley. The 2 accessory pullies are for looks primarily. I would suggest going with just a lightweight pulley like the KJR or the CNR. With the purely lightweight pulley, you retain use of the stock belts because it is the same diameter as stock so you save the cash of not buying new belts.

 

SS = more bling factor, just go with crank pulley.

 

The crank pulley is the only one that will really make any performance difference. The others are lightweight pulleys, but they are not light enough to really make a difference one way or the other. WE mainly sell the crank pulleys alone.
Most of us here who have a Z or who have had a Z in the past, used this pulley and were all quite happy with it.

We were having a special on them also, PM me for pricing on the crank pulleys, we do have them in stock