Why not just replace your organic disc with the 6-puck disc. I haven't had any slip for over 20k miles and over 400whp. Its a cheap solution to at least try if you aren't paying someone for the labor.

 

I have been running the ATS twin carbon w/flywheel. It took a little while to get used to/ break in. But since then it has taken 500+whp abuse for quite some time now and never faltered. It was even holding the 700+whp I had before the engine quit. I will be upgrading to the triple disk when everything goes back together.

It is expensive, but in my opinion well worth it for a street car with insane amounts of power that you want to use as a daily driver.
Good luck with whatever you decide.
--B

 

Our price includes shipping, and we are doing another 5% discount until Dec 15th. If you see a lower, we'll do our best to match it. Carbonetics raised their prices substantially in June/July.

Like everyone else mentioned, these clutch/flywheels are cream of the crop, and can hold MASSIVE power but still maintain their street manners.

 

How is the chatter on these units? I've heard other multiplate systems, but not this particular one before.

 

No chatter. The carbon disc is amazingly smooth and quiet. And even with the ten pound flywheel, there is not that characteristic "cement mixer" grind at idle like you get with the metallic units. It just is another dimension of performance and quality. Yes, it costs. And yes, it is worth it. On the street it affords remarkable civility, and yet on the track it just holds on to massive power without slipping.

 

^^^+1^^^

 

I've never heard of anybody having chattering issues with the twin disc. If your wondering about the triple, its a 50/50 shot. Sharif's car is smooth as butter, mine is a chattery/grabby b!tch....the SS clutch line helped me some, but still an annoying clutch <----IMO

 

Alberto, that is very interesting to me. My experience has been so terrific with the triple disc ATS unit. In fact, over time it has gotten better. Partly to my learning to use it, but I think also part of it is the unit "breaking in" a bit.

I wonder if the way we drive the cars might make any difference? I never drop the clutch or put drag or street race demands on the unit from a dead stop. My extreme use is all on the track, and all in gears 2-4 for the upshifts into 3,4 and 5. (I only get into 6th at places like the front straight at Cal Speedway or maybe at Big Willow Springs). I may also be pushing less power, with 489rwhp and 566 lb/ft of rw torque compared to what you are running. Do you suspect that it is burning or perhaps out of disc balance from dragging it?

In any event the unit has been totally excellent for both street driving and multiple track days.

 

While it has softened up some and gotten smoother with time (2000 or so miles now) its still a hard clutch to drive man. Even my car friends always comment "damn that thing chatters bad" when they ride in it/drive my car. I have only shifted hard 2x on this set-up, so its not due to abuse or wear caused from drag racing. The clutch does grab awesome on the street at my power levels with no warm up, but at the track with no/minimal warm up it slipped on the 2-3 shift. Blah-Im not a huge fan of carbon clutches for dragging, but most any organic disc would crap out FAST....

 

I hear some chatter with my twin disc, but it's nothing crazy.

 

well. i bit the bullet. i purchased a twin with 1350 kg PP, standard compound and 22 lbs flywheel.

i wanted something VERY STREETABLE... knowing how pucks and cerametallic compounds work, i want to stay away for those. not to mention, i destroyed a transmission from the tilton rally (remember sharif?).

thanks for the advice, especially to zivman.

 

Alberto's triple disc was definately a little chattery than the others we have done. The triple is actually supposed to be even smoother than the twin, according to Across. One thing to consider, this at Nissan made a revision to both the clutch pedal assembly, and the slave cylinder on 04 and beyond vehicles. Alberto's is an 03, so maybe the different type of pedal and cylinder is making it more suspetible to chatter??

That's really all I can think of. We have installed probably 20 Carbon clutches at the shop, and many more have been shipped out, and I can't recall any other issues. They have been consistently smooth.

 

While the cluth may not be as forgiving as my old JWT set-up I live with it. You cant expect stock like driveability withy nearly 600whp....chatter = small price I'll gladly pay

 

Mine is an 03, Sharif, so while perhaps it is a factor....my car lends no support to the possible theory of it being so. It really is puzzling. I had more "grind" and clatter from the single mass Nismo flywheel than I do from the ATS triple disc carbon unit.

Maybe somebody slipped a few BB's in there just to mess with him?

 

Sorry to bring this up but I have a queston.

If I swap in the triple disc ATS, can I reuse my current flywheel which is the JWT lighten one I think 14lbs? Because I'm running the JWT clutch and flywheel combo.

Whats your opinion?

 

I obviously stand corrected

 

i thought the ATS clutch/flywheel needs the ATS flywheel because it's a smaller diameter than the JWT or any other normal diameter flywheel

 

They are not compatible. The ATS/Carbonetics flywheel and clutch is one matching assembly. There is a case that is bolted to the flywheel, so its designed to only work with the carbon disc package of components. It's more like a cartridge, rather than a simple clutch and flywheel setup. Hope that helps.

 

Thank you, I see now. So when you purchase the ATS clutch does it come with the standard 22lb flywheel? or do you have to order either or 22lb and 10lbs flywheel.

I always thought a flywheel came with the clutch as a package...

 

The triples comes with the 19lb flywheel, and the twins come with the 10lb flywheel. Personally, I can never tell the difference between the two flywheels.

When you purchase, it will come as a complete kit, including the throw bearing and new sleeve.