I also have the P-Trim on my Evo.....$1599.00.....right off of Spec's website

 

I've had 2 clutches from spec that just wouldn't handle the power on 2 different dsm's i had. Not the case with act and exedy. And both of these cars we're well inside the rated capacity's.

 

Are the super twin sprung hub or solid hubs?

 

Spec made the P-Trim with 1 sprung and 1 unsprung disc. In their testing they found that the clutch was smoother in that configuration.

 

hmm interesting...

 

i am going to keep my eye on this thread.

 

Dan, have you picked out a clutch yet?

 

no sir. im still reading and doing my home work. i have been very busy the past 2 weeks so my pone call to drifto has been a bit delayed. lol. it is hard not to spend this money i have saved up though. i need to buy a clutch soon before xmas comes and before i spend it on other crap.

 

i am pretty sold on the spec twin. I have a lot of friends in the LSx world and this is a very popular clutch. If spec can build a twin to hold 800-100+ftlbs with stock "like" feel for those cars i trust them on the evo.

 

im mostly wanting to know about the mini twin...and do the disks have a lot of friction material.....or if that even really matters. i dont know much about clutches, except that i know i am very dissatisfied with my current clutch, after seeing ads and all the misleading information about it.

 

which cluch is that?

 

The MiniTwin is Spec's road racing twin disc clutch........

 

^ Now I would like to hear more about that! I would love to find a quiet twin that will hold 400/400.

 

how shud we compare this clutch wid quarter master twin ?

 

The original clutch being discussed was the SPEC Mini Twin. For all practical purposes it is the exactly the same as the QuarterMaster twin disc. I ran the Mini Twin clutch for 12K miles before it started slipping. It was noisey as hell and had light switch engagement. It was not my favorite However, it is a race clutch that IMHO is not for someone who spends alot of time on the street vs. track. On the road course it was a phenomenal clutch. Shifting was incredibly quick and the low inertia made heel toeing a breeze. I didn't like it for drag racing, even though I could shift the snot out of it, because modulation/engagement was poor and I could never get a decent 60'. I would either slip it to long or roast the tires. Many, many, many, others have used this style of clutch ie. Tilton, SPEC, QuarterMaster and been able to use it effectively at the strip, but I was never that guy.
In regards to the Super Twin that is now being discussed, I think it is a much better alternative for more street/less track people like myself . It is much heavier than the Mini Twin which means shifting is slower, but the mass quiets down all the rattlely/ clankity sounds and improve driveability tenfold. I was more than glad to trade outright shift speed for everyday liveability and function. It has not seen the roadcourse yet , but it has been to the strip a few times now and modulation is much improved. My 60's are much more consistet as well. It's up to me to get better now that I can't blame the clutch anymore .The larger disc area also provides retarded amounts of holding power over the Mini Twin as well. Who the hell is gonna need 1000lb/ft capability in an Evo?
The only issue I still have is a screech or honking noise when leaving from a stop. It is not present in Ted's car at all. When I asked SPEC about it the stated that Carbon content of the friction material can vary slightly and this may be the culprit. It is annoying when it happens, but this clutch is soooooo much better for my intended use(more street/less track) over what I had previously that Im very pleased overall.