Ok, I was running a ACT street/strip set up awhile back. Lots of drag racing with it. It finally went out on me about 1 year ago. I upgraded to the SPEC stage 3+ which is some metalic compound. Rated at 500+ft lbs torque. I broke it in with 1000 easy miles. (1000 miles because I was also breaking ina new motor that had to be taken back out for oring failure and then another 500 miles on the next motor). Then started running it harder and harder. While on the dyno it started to slip just a tad. I really did not know 100% forsure if it was. Later while doing some more high boost street tuning it started to slip in 3rd gear bad. I pulled it out tonight and it is burnt bad. Even wear but it was very harsh on my light flywheels. Wore pretty good into the disk, 4 times more than my act did with 30-35k miles. This Spec has maybe 3k on it. Stay away from spec stage 3+!

 

damn i hope the stage 3 isn't that bad... i just put one in my rebuild but haven't broken it in yet

 

IMO, if you are making that much power, you should be using a twin plate clutch.

 

I'm not a big fan of spec clutches Mike. I've never liked the pedal engagement and feel with them. I would do with an Exedy twin plate with your power goals.

 

Well we will have to wait on the twin disk fir now as I already have a act 6 puck (unsprung) going in. Seems a few on here have great results with that set up. If I did not get such a good deal on it (act) I would have went Excedy twin.

I will post up pics tonight.

 

Ihor, I am glad I got that flywheel from you as the spec ate my other up pretty good.

 

Here are the items. Clutch disk, flywheel and presure plate..

 

Ouch. No chance the pedal was improperly adjusted such that there was some preload on the throwout? Just throwing it out there as a possibility.

 

I've had a SPEC stage 3 clutch in my 7 for almost 5 years now. It's the 4-puck sprung hub one, not the 3+. It was great at first, but after daily driving it for all this time it slips like crazy now.

 

i had the stage 2 on my car and i loved it. that sucks, probably caused by all that power.

 

Spec clutches are crap! I've had several friends with their Spec stage 3 clutches go out with less than 10k. They are horrible.

 

That's what I'll be putting in this summer.

 

everything was adjusted fine. Clutch in my book is ok for feel and performance but not 400+ft lbs of torque. I think they are over rated. Now I know Sean (Aspec ) told me he had used them customers cars making around the same power as me with no problem???

 

I was seriously considering buying a Spec 3 clutch from RX7 store but now that ive read this i don't think I will.

What would be a good clutch capable of handling 400+pounds of torque?
I"ve got a ported motor yet to be installed with bolt-ons mods and non-sequential turbos will probably buy a set of BNR Stage 3's once motor is installed and broken in.

I currently have an ACT Street clutch with about 24K miles and thought of maybe just replacing the pressure plate but I can't seem to find one.
So I am considering buying a new clutch with a higher torque capacity
but I want something that is streetable and not a pain in the ***
to drive!

 

I've been running the Spec sprung 6 puck (stage 3?) with BNRs and now my 500R for about 14k miles or so. It's handled everything I've thrown at it, to include repeated 4th gear 19 psi pulls with the 500R.

 

You can order from ACT: http://www.advancedclutch.com/

It's not cheap, but you can order just a pressure plate.

 

Rich, not sure were you are at power wise but I think I would prefer the base stage 3 over the 3+ even thu the 3+ is rated higher. The real breaking (slipping point hapened right around the 22psi area. Wierd, but come to think of it I did a 26psi pull on a dyno a few months before and it held on that 512rwhp pull at 400lbs. torque. but the torque reading was a little crazy so maybe indeed it was slipping a tad. Now it holds fine 1st-2nd but top of third it lets go.

 

it's very important that the flywheel surface is prepped Before installing the clutch

they stress this point ALOT


ideally new FW and clutch together

otherwise at the very least a re-surfaced flywheel...



I installed a stage 2 spec clutch, and replaced the friction surface on the Racing beat flywheel...

lots of clutch kicks and drifting and burnouts and general abuse on my Stage 3 upgraded turbo.. she's still holding like a champ..

 

mine went in with new flywheel, new disk, new presure plate. Everything by book!

 

I disagree. I'm making the same power as him and my ACT 6 puck has taken everything i have thrown at it. I'm actually unsure of the mileage since it was in the car when i bought it, but its gone through 3 motors and many hard launches and its doing fine.

I probably jinxed myself and it'll probably go out the first time i take the car out this season, but i would be ok with that, its had a hard life.

 

Did not see where is said NOT FOR STREET USE. so I am looking for a ACT disk with springs for a trade or buy and have this sitting.

PM me if anyone needs it got from Rx7store with the light wt flywheel

 

It is official. F*&K SPEC clutches. I gave them the chance to make it right and due to his only out of the (warranty time frame) they are backing out. They did offer to sell me a discounted unit but it was not much off. Either way I will never use them again and never recommend to anyone. To me service is everything. They have none. I also sent pics showing an area around one of the rivet holes that chunked. This in my site is what caused the complete problem.

 

Hey Mike.

Give David Norton a call there. Don't talk to anyone else. If you need me to call him for you, I'll see what I can do. The pics of the clutch don't look like my stage 3. Mine is a 6 puck not a complete disc. I had a stage 3 clutch in my car dynoing 435 RWHP for 3 years and 50K miles w/o issues. If it slips in 3rd gear on the dyno, then it should be covered under warranty. Tell him you made X amount of RWTQ and it slipped when the clutch was fully enguaged. If it was advertised as 500 TQ then that is false advertising.

Bryan@BNR

 

Hey Bryan! Well I doubt they will do much. I lost it with there sales guy Jeremy today on an email. Is David the owner? If so I think he is the one I talked with back when I purchased directly from them. The stage 3 and 3+ are differant. 6 puck is the 3 and 3+ is a full faced metallic unit rated at 598! Give him a buzz for me. Let him know I fel cheated as I did everything by the book! If this unit would have held I would have been very happy as it had great pedal feel. But again on another note it was VERY harsh on my flywheel.

 

Can you elaborate more on this?