That's a tough question. I know people with manual trannies and 100k miles who've never had to replace their clutch. And then there are people who have to replace the things after 20k miles due to abuse. I'd guess you should be able to get at least 30k miles out of it if you don't do a bunch of clutch-drop, heavy-duty launches.

I'm sure there are people here who won't get that much, and I'm sure there are people here who will easily double that with no problems.

 

Good point. I guess it depends on the driver.

 

It may accelerate a bit quicker, but I'm not completely sure about that. (Might just be tricking myself into believing it because everyone says so.) If there is a difference in acceleration, it's relatively minor.

It does rev quicker, allowing faster rev matching during shifting. That's why I bought it, and it's worth it in that respect.

Some people have talked about differences in engine braking when they lift their foot off the gas. However, I can't tell any difference. If I'm going down the highway and lift my foot off the gas, the car decelerates like it always has. Physics would dictate that there should be an increase in engine braking with a lighter flywheel, but I can't feel it.

If I could do it over again, would I? Yes. The stock flywheel is just ridiculously heavy, and never should've been put on a sports car like this. (My Audi station wagon had a lighter stock flywheel than the Z!) I would probably prefer something even a little bit lighter than the JWT's 14 pounds, but not too much lighter. If you decide to do a clutch at the same time, you can drop a few pounds that way. I believe the Nismo is lighter than the JWT clutch by a few pounds.

 

ya..same question here?
+ whatz the weight for some carbon disc clutch?

 

The Nismo clutch may be lighter, but the clamping force on the JWT is higher. But I don't know how much HP each can handle. Anyone?

 

In a post Jason@Performance made a while back, he stated (if I recall correctly) the Nismo clutch was a few pounds lighter than the JWT clutch, and the JWT clutch kit is apparently about the same weight as the stock clutch.

 

I just want to add that when upgrading the flywheel, you have effectively increased the amount work asked of the clutch. I don't know that the stock clutch will not handle a lightened flywheel but it will wear faster. You're going to have to change it at some point why not save time/money?

Like when I go to the store, I always buy toilet paper. I don't always need it... but why not? I'm already at the store and I'm gonna use up the supply I already have... what's the point in wasting a seperate trip to the store just for tp?

Of course, clutches aren't TP. I'm just saying what I think on the matter. Sorry for beating this to death. I'll stop now... hehe

 

*****:

Don't need to be sorry over this! You are totally right about that... it will be better to save some money, serious money that we are talking about on the labour to get the clutch swapped out in the near future if the clutch isn't new. And I think many people do that too though... I didn't opt for that option because my clutch was like totally new when I put my flywheel in and dealer told me that I will not need to swap it out any sooner... otherwise I would have definitely got it swapped too all together at once!

cheers,

richie

 

That's kind of misleading, but I think I know what you're saying. The JWT flywheel is 14 lbs if I remember correctly. So are you saying stock setup is 66 lbs total, and JWT setup (w/clutch) is 38lbs total? I ask because you didn't mention the weight of the JWT clutch...


Jason has mentioned in the past that the tilton adds about 20 "acceleration" hp. On their racecar they showed an improvement of 30 "acceleration" hp. So I would assume the JWT would have a gain also, just not as significant.

 

.

 

This Devil says
Tilton is my choice

 

Anyone have the Exedy setup?