I have a year or two HD 4000 clutch.its from Competition and was sold by slow boy racing. This is in my 3065 2.4 97 talon. The car is dead currently with spun bearing most likely but right before the engine died it seemed the clutch was slipping terrible in the first two gears. I broke in the clutch with 500 mile break in and it seemed good. I did have some problems first had slave break from coming loose guess from engine vibration and then master went. So maybe these hydraulic failures caused the clutch to drag and wear out prematurely.

There is about 5000 miles on the clutch. The only runs made on it were some 5000 stutterbox street launches on street tires.

Was also thinking maybe could have broke center diff thought heard a clunk or bang but not sure. Would a center diff give same sypmptoms as slipping clutch?

Anyway am yanking motor shortly to fix it in the 97 and was going to install new Jack trans and likley new dss axles at same time. What clutch can take around the full power rating of my done up 3065 2.4? I have 280 cams and sheet metal intake. Have provision for direct port nitrous and would likey only run 50 to 100 shot tops.

I am considering twin disc clutchmasters fx 600. I am wondering if an act 2900 with street disc or 3200 with street disc would be enough. I am considering new design HD4000 on slowboys site.
I don't want a noisy annoying twin disc clutch the fx600 is supposedly to be streetable. This is my street car. My 91 auto talon is the dedicated racetrack trailer car. I want as much daily driveability as can get with low to medium pedal pressure and ability to slip the clutch in heavy traffic situations.
So what are you guys with similar power putting out.
Oh when apparently the current old design hd 4000 was slipping I was only at 21psi with very low timing on pump gas. So figure maybe had 500 to 550 engine hp at that boost level. The older design hd 4000 was supposed to take that power level.
I won't know for sure if the clutch is trashed until take it out. I did locktite it and do proper install as far as I know.

I had new act flywheel as well. Loctited pressure plate and flywheel,torqued to spec,wiped assembly oil off the flywheel and pressure plate with brake cleaner..yada yada.

ACT Clutches have been proven to work quite reliably in these cars, even ones making ridiculous power like your 3065 2.4 97. I would say go with the 3200 but you want a clutch with LOW to middle pressure?? I'm almost certain your not going to find a clutch capable of handling 650HP 5000RPM Stutterbox launches, yet remain nice and easy to operate in heavy traffic.

I'd say pick one, toasty clutch or leg replacement surgery every few years.

I thought the new act 2900 and 3200 were pretty reasonable pedal pressure now?
Act so far has no twin disc?
Twin disc designs usually hold a lot of power and have good pedal pressure. Some are not very streetable. That fx 600 advertises it is streetable but don't know anyone running one personally or seen too many posts on dsm boards about it. I have seen good reviews on it on other boards.

A twin disk clutch is what your after, if your looking for lots of holding power & still street friendly/light pedal pressure, this doesn't happen with a single disk, like Mike has mentioned.

I believe its PTT that I've heard good things about & the Exedy twin disk is also another nice option. Obviously both these setups are a good amount more then your basic single disk setup.

Allan.

If you really want a great clutch, we use a Tripple/Carbon from Carbonetic. It feels (peddle pressure) just like a 2600lb clutch, and it will take just about anything you can throw at it. Also, 100% dissengagement for high rpm shifts.
E-mail or call if your interested, we can get you a great deal.

Please don't try the Clutch Masters (Bastards) I went through 3 of them in a couple of months. I was told I was the only one having issues, but I found lots of people on the net having the same problems. Exedy makes a great product and stands behind there product.

Hmm ..thats not good to here Ron. I have not even taken out my old clutch yet and it might now be spring when I do get it out and figure out what happened.

I assume these were the clutchmasters single discs? I have seen great reviews from owners of the twins but not on dsm boards.Fidanza makes twins for some cars now like my firebird twin disc and supposedly very streetable.

So that carbon is a triple disc mentioned above. Might have to look into that. I guess could try a 2900 maybe with street disc an see how it does. I have no intention ,at least at the moment of running 650 engine hp all the time .Most likely would run low 20s of boost thats is plenty crazy for me on the street and this is a street car 99%.But there might be the odd time that would take it up to near full power. So really I need a clutch that can take mabye 500 to 550 engine most of the time and 650 very occasionally.

Maybe my center diff went and my current clutch is fine. Just no time to take things apart right now. And garage is not heated so likley won't be working on the cars this winter.

Check out Exedy Allan, Buschur, Dynoflash and AMS I do believe run Exedy on their Track Evo's and they're pushing upwards of 900HP on a GT35R and GT40R turbo's, which are slightly bigger than the 3065.

Kevin K is runing a DBB 3575 with a high-revving 2.0L and I'm not sure what he's running for a clutch, however the car has low 11's in it if not high 10s on a street car.

Exedy will do the trick for you Allan. IMO go with what is proven. The twin disc is quite expensive, however when properly installed/adjusted you will probably be happy with the purchase.

Cheap, Fast, Reliable. Pick 2.

Right now I'm just using an ACT2600 w/street disc and ACT flywheel. Next clutch will be a twin disc once this starts slipping. I'm upto 32-33 psi of boost as of the other day, and it seems to hold just fine. At Cayuga the other day(28psi) I broke loose in the top of 3rd gear while doing a third gear pull to get a datalog....so no slipping there! I've seen HP estimates in DSMlink as high as 609. It was 519 when I trapped 121 letting of 3 times to find gears. I feel the ACT2600 is a proven clutch for our cars!

Exedy twin disk will do you just fine!