Hi guys,

I'm new to this whole FI thing and am trying to make heads and tails of everything. I bought an 03 Z track model with about 4K in miles on it at the dealer. The car came with Procharger S/C. I already had the dealer give me a new clutch and tranny because i had that issue with the 3rd gear. Now my questions is they gave me a new stock clutch. The clutch feels like it can not take all the power from the S/C. What kind of clutch upgrade is good for F/I. Do i have to replace the clutch plate also? I could use the help to make sure i can save enough to get this baby running mid 12's by the summer.

 

My suggestion is some kind of twin disc carbon carbon clutch and flywheel combo.

carbon discs are impervious to heat, and they actually gri[p even more as they heat up. They will also last the life of the car.

I like the APS twin disc carbon carbon. 750trq of holding power, and stock pedal pressure and engagement. I can point you in the right direction if you want one at the best price.

Several members on this board have already bought them.....roughly $1900 shipped or so....and that includes the lightented flywheel.

 

*RPS

 

I thought is was ATS??

 

Yeah he meant ATS

http://www.a-t-s-usa.com/ats-product...s-carbon.shtml

 

You guys are right...I have 300zx on the brain

 

Doah!....yes. you can tell I have APS on my mind...LOL

ATS Twin disc carbon.

 

Carbon clutch's need adjusted every 3000 miles or so to keep them working right. That's what steered me away. I like the looks of the exedy. Should last a LONG time, Easy as a stock clutch to drive, Lighter than stock and no adjustments.

 

Yes and no.

The ATS CC clutch will never need to be adjusted.

 

I am not sure myself. Just going by what I was told by several shops. I was told that multi-plate true carbon clutches must be adjusted to keep the gaps between disks within spec, or the clutch may fail. Either way, I don't want to deal with a hard to daily drive clutch.

 

No adjustment is necessary. I've sold more ATS carbon clutches than any other dealer in the US as well as have installed the very first ones that arrived here years ago. Even after years of use, no adjustment is necessary and they last a LONG time. I have seen only one "wear out" and that was a single disc on an AWD car. The disc still had some life left in it but the release bearing needed to be replaced. They are rebuildable just in case. THe triple plate is the smoothest and easiest to drive but is more expensive. It can handle 1000 HGP with the lighter 1100 kg pressure plate.

 

Would you happen to know the difference in feel between the " triple carbon 1100kg" and the "triple carbon 1350kg soft type"?

The "triple carbon 1100kg" holds 1200hp and the "triple carbon 1350kg soft type" holds 1000hp but witch would be more streetable?

 

nothing needs nor can be adjusted on the ATS's

 

What he said. In addition, for 95% of the people, this will be the last clutch you ever buy. That is really what sold me on it. $400 more than a typical standard clutch and flywheel combo...but worth every penny since it never needs adjustment or replacement.

 

Of the people with ATS carbon clutches, whats your starting from a dead stop impression?

 

humm, interesting.
what is the total weight of the ats twin disc CC clutch and flywheel?

i drove the tilton twin disc, and it was a PITA because of the 8lb. flywheel. you can styill slip it, but the mass of the flywheel is what makes the driving easier/harder. but i gotta love the revi-ness(not even a word) of the flywheel.

1900 sounds like a good deal on this twin disc setup.

 

There are pro's and cons to all mods.

"A heavier flywheel is offered as an option for several ATS carbon clutches. A heavier flywheel (1) makes the drag launch or the start on a slope easier (2) reduces the engine harmonics vibration / noise significantly. However, please note that engine pick up speed goes down."

 

It's not just the Weight, it's also the Diameter. The tilton is a 7.25" clutch the APS is like 9".

 

I decied to contact ATS directly for my question and this was their reply.



The pedal pressure is solely based on the pressure plate rate. The standard 1,100kg pressure plate has a lighter pedal pressure than the soft type 1,350kg.

The main feature of the soft type is the reduced shaddering / vibration. The noise level is pretty much the same between standard and soft type. The noise level for both standard and soft is higher than stock. (it has typical mulity plate clutch noise).

Unfortunately the shaddering tolerance level is mainly based on each driver. I personally did not mind the noise and shaddering when I drove ATS supra in Japan which is equipped with standard ATS carbon triple. However I know several people who noticed the noise or a few people who minded that. If there is a chance, it would be ideal if you can drive a Z33 equipped with our standard carbon clutch. We have sold 12 cabron clutch for Z33 in the U.S so far (all of them are standard), you might find someone in your area.

As we wrote in the web, if you take your car to race track for roadracing, track event, or drag racing, we do not recommend soft type.

Either you choose the standard or soft type, the engagement is much milder than the other performance muliti plate metal clutches. If you are all right with typical multi plate clutch noise, our clutch is totally streetable.

 

Also the "heavier flywheel option" is not availible.

"we do not offer a heavier flywheel option for Z33 clutch. Currently a heavier flywheel is offered for GTR32, 33, 34, Subaru WRX, and Honda S2000 only."

Best regards,
Yasu / ATS