Just wanted to let you all know, we have a new pulley available on our site.
It's a lightweight pulley that is the same size as stock, so it's not an "under-drive" pulley, just a lightened pulley. Weighs in at 2LBS. Silver or Black, check the link for more info...
works for FI or non FI cars, but it's good for those with superchargers who can't run underdrive pulleys


http://performancenissanparts.com/ca...oducts_id=5537

 

1. is this a nissan/nismo product?
2. will it void our warranty?
3. is this the kjr pulley?

 

don't want to sound stupid but what is the gain from this ? rotating mass ? no hp gains im guessing.

 

I believe its something like for every half pound or pound of weight removed from the crank you free up 1hp.

 

stillen says its 2.7 hp/lb. weight stock pulley=6.5#, -2#=4.5# x 2.7=12hp, all due to wt loss, if the gain is as stillen says.

 

With this pulley, since it's not an underdrive pulley, you are only going to gain performance due to the lighter weight, and it still will allow the car to rev a bit faster. The lighter weight means less rotational mass. Again, this is geared more for those with a supercharger than cannot use an underdrive pulley, or for those that want to gain a bit of performance without using an underdrive pulley. All in all any time you lose weight on a rotating part, you gain performance, no matter if it's a different size or not...
This is just another option available

 

Tony, why aren't you answering the questions?

 

sorry.
no this is not a nissan/nismo product. it is aftermarket KJR.
this should not void the warranty, unless it is the direct cause of the issue, (the same can be said for any aftermarket parts period...)
I am putting one of these on my car shortly, just waiting to finish a few other things first. And I am all NA, no FI .........yet.......
Sorry i overlooked that one reply, hope this answers your questions...

 

Whoa! Dyno please!