I am looking to purchase a spec stage 4 clutch but have heard that in traffic it tends to heat up. I guess this is bad. Also if the heat is bad for the clutch do I just pull over to let it cool down or can I just put it in neutral? Also do these performance clutches last a long time?

 

For anytype of traffic I recommend the stage 3. I had a 4 and it was like a on off switch. Stop lights sucked.

 

Mine is fine until you get into heavy stop and go traffic, then it heats up after about 30 mins.

No on/off switchyness, and i have a ceramic (most agressive).

 

what is your horsepower level? or future use plans? the spec stage 3 can handle 650rwhp, think your gonna need more then that? the stage 4 is a competition clutch, cause its not made for stop and go traffic.

 

Well I plan on getting 600 rwhp but I have heard that the springs on the stage 3 clutch tend to break. What do you think?

 

well Im no pro, but I havent heard that. maybe you should get search on peoples exp. with the stage 3 also.

 

The spring were my reason for going with the SPEC IV. To assist in streetability I went with the 'F' disk. It is an upgrade to the standard stage 4 disk, and instead of pucks, it has the clutch pad material all the way around the disk. SPEC claims 850+ ft-lbs at the flywheel holding power with stage 2 drivability. The pad looks nothing like the other spec clutches out there, the material almost appears to be copper. You will not find this clutch on SPEC's website, but just give them a call and they can fill you in on it. It's not cheap, but PM me if you want a few pointers about who to talk to. I just got mine in yesterday, so I will be buttoning everything up tonight and taking it for a drive at that point. I will try to update later this week as far as stop and go etc.

 

With that kind of power, dont even think of the stage 3. They suck with factory power levels. I have a stage 4 that I just installed yesterday, but Im waiting on a couple other parts before I drive it. I will never buy a spec sprung hub clutch again after my last one... http://community.webshots.com/album/356140671QRXNyK

That was a stage 2 btw, but they use the same sprung hub. I was easy on that clutch. It lasted less than 15k miles.

 

Well I now have about 150 miles on mine, and holy cow its grabby. It is possible to slip the clutch, but its a fine art, and it does chatter a little. However, these symptoms are going to be common among any clutch with this holding capacity. To my surprise, the clutch pedal is actually the same or possibly lighter than with the lt1 disk/lt4 pp setup I had before, however that may partially be due to the clutch being bled for the first time in 84000 miles. The only time that I get audible chatter is low rpm (1300-1600) in 3rd or 4th gear while trying to quietly accelerate past a cop