I just found out the ACT HD clutch kit doesn't work too good with the power and torque with the turbo. So I need a new clutch that will hold. I''ve read a lot of good stuff about the Competition twin disc. Does anyone her have any experience with it? How is it to drive for daily use?

 

how much power are you making?

 

I was 420whp/420nm this summer, but building new engine now. So don't know how much I will be making, but I know for sure it will be more for the next season.

 

The Act PP is rated to 350trq I do believe. So that's about 500-550whp for reference on most set ups. If you plan on exceeding this then the dual clutch is probably worthwhile. You can get an un sprung puck style clutch, but these are not fun to try and modulate on the street in any kind of DD capacity and are hard on your drivetrain. They still get used though, because they are much more affordable then a dual.

 

There is a big chance I will exceed 500whp. The question is more "when". Maybe this coming season, maybe a bit later. So why not jump into it. But I will be using the car to work some times, so a streetable clutch would be preferred.

Edit: The ACT clutch is rated to 370 ft/lb (which is quite excactly 500hp) according to their site, but it doesn't say if that's engine or wheel torque. If that's engine torque, I'm already at the limit and will definately pass it as soon as I get the car tuned with the new engine.

 

Any other suggestions on a new clutch setup? Other alternatives I should consider?

 

I'm pretty sure their quote is flywheel rated, like most companies. So aprox 350wtrq. I don’t know if your running an F20 or f22, but the F20 puts out less trq given the same whp. 335ish wtrq @500whp

As far as higher holding options, I think your stuck with either a puck or dual clutch. As far as I know Act has the highest trq rating for a DD streetable clutch system.

I know there are some guys that may chime in here that have had success pushing the trq rating limit of the Act, and so you may have to decide if your willing to risk that. In my experience, most clutches I have tried have been understated to some amount. I think if I was planning on reaching or exceeding 400wtq/600whp, I would invest in a dual clutch. Any less then this, id opt for the Act.

 

I will be at the limit of my current clutch, and very possibly exceed it. If not now, then very likely in not too far future. So I might as well jump into it right away and buy something that will hold for sure. I would really hate it to have to stop driving the car for an unknown period of time while waiting for a new clutch and change it, and getting a short season because of it.

 

I am running the CC stage 4, which is a sprung puck disc...along with their ultra light flywheel and the appropriate pressure plate...it is about as close to a switch that you can get ans still be able to drive on the street...stop and go traffic is a PITA! You have to focus so much on the release it is crazy. I don't have to worry about that, I live 2 miles from my office and live in a small town...but if I lived in some of my previous "homes", I would not want this setup...regardless of whp. I should also say that it is fun as all get out though...it's like a good dog...it goes when you tell it to.

 

Yeah I know with those puck clutches, some guys won’t run the sprung ones because they just fall apart, the springs cant take the trq and many early failures occur, so at this level the unsprung puck is best suited for a realistic longevity, but then drivability is even further compounded and of course drivetrain shock as well. If you drive the car two limes a day and an occasional squirt on the weekends you may never find out the shortcomings. But if you run your car hard and somewhat frequent, that clutch very well may fall apart on you much sooner then you would like.