As far as gains are concerned is it a worth while mod?? Is it something that you will notice at all on the butt dyno? How much of a rwhp increase do you get with it if any at all? Also is the install all that difficult to get through?

I asked on another board but this one gets so much traffic I just had to ask it again.


THANX

 

a lot of people have it and they seem like they like it. do a search and you are sure to find alot of info on this subject.
good luck!

 

There is some gain on the butt dyno... "Some"...

I found to gain up to 8RWHP across the full RPM range with the UR Crank Pulley...

One of the main things you notice is quicker engine response to throttle blips / faster rev-matching... This is even more noticed when a lightweight flywheel and clutch is used as well...

I had one on my Z for 50-60K miles... Loved every minute of it! Loved the response...

Getting just the Underdrive Pulley is what isgoing to give you the gains... The other two pulley's are just for looks...

We have both the UR Underdrive Pulley & Sets instock! PM if interested!

 

Would it be a good thing to get with a simple set up like spacer, exhaust, and intake?

 

Is there any difference from the UR crank pulley, CNR, or KJR ? Thanks

 

You will gain with a stock set up to a heavily modified...

On a turbo car gains will be even greater...


UR pulley is an Underdrive Pulley... Smaller Diameter, less weight, less rotational mass... There will be less resistance turning the accessories but at the same time underdrives the accessories....

The KJR is a stock sized pulley but lighter weight... ideal for supercharged cars...