Hey guys im looking for a clutch that will hold prob around 600 torque and 800awhp and am just wondering if the older QM twin had any drawbacks because i saw that they switched to a newer version, please reply i need a clutch soon for my build.

 

If you daily drive, or even drive on the street soemwhat often, then its not a good idea. Becasue its a twin disk, the friction surface is very thin, and wares out quick. Daily slipping of the clutch makes its ware even quicker...and these things dont like beign slipped.

 

My car is going to be just a weekend cruiser maybe driven 4 times a month

 

They make alot of noise. I picked up a nice vibration around 2800-4000rpm. Typical of solid hub multi disks. It is a really nice clutch don't get me wrong. Just makes some different noises and rattles.

 

Yeah i dont mind rattles, noise, or vibrations just as long as it holds power

 

like chu said...if it's not a daily then go for it

they hold gobs of power they just lack life span

 

They are a great clutch, both new and old. They are rated north of 700tq and the shifting is absolutely awesome with them, especially at higher rpm's given the light weight (19lbs).

The downsides, if you can call them that, are a little chatter and a max life of about 10k. There are many people who complain about these aspects of the QM, but when I'm making 1000+hp, I really can't expect things to be either a) quiet or b) last a long time.

 

Thanks guys and is the 19lbs the new version ir the old version and whats the difference between the two?

 

The old one is 19lbs, the new one is said to be 4lbs heavier so 23lbs. New version is supposed to last a bit longer, have better street manners given its slightly higher weight, has a geared disc setup, and I believe that it is an 8 bolt vs the old that is a 6.