Anyone have experience with the Nismo Flywheel?
How does this compare to the UR pulley mod?
How would they work together?

Last Question...
I have read with interest all the hoopla about UR pulleys and possible longterm effects. Any insight on the Flywheel and longterm issues with engine damage. I plan on keeping my car for 200,000 miles.

Thanks

g4ian

 

I don't have a definitive answer for you but from what I know, you don't have to worry about the balance/vibration issue with the flywheel as much as the crank pulley (if the people who argue that the pulley is detrimental are correct). I've had the pulley on for over 12K miles and I have two oil analysis reports with some hard driving and a track day. My lead is at 1/3 the level of the universal averages. Here's a link to my last analysis:

http://www.g-owners.com/pic_display.asp?id=734

I plan on doing more lab reports perhaps every other or every third time now that I got some good peace of mind.

The UR pulley will drop about ~7 lbs. of rotational weight. I believe the nismo flywheel drops about ~11 or 12 lbs.? You'll definitely get better gains with the flywheel but it does cost considerably more. Pulley with belts runs around $230 and a diy install is definitely possible. I believe the flywheel and clutch combination runs closer to $800 but you'll have around 6 or 7 hours of labor in the shop to swap them out.

If my tranny goes and they have to replace it, I'll definitely get the flywheel and clutch as there would be a nominal install charge as they put the new tranny in.

I'd say bang for the buck, go with the pulley at least.