Well my clutch is starting to slip at high revs so i'm wondering what would be a good clutch to replace it with. I want something that grips good, but without a heafty price tag.

thanks,
matt

 

You've got Mikuni side drafts and an Aeromotive regulator and you want to chince on a clutch? Replace it once and never worry about it again. To me, that's worth $300...get the CenterForce Dual Friction clutch and you'll never have to pull the tranny from the block again no matter what further mods you do to the engine or the rear-end, ie., back halving for a Ford 9" and slicks....ignore all the pundits who will now proceed to further the urban myth that the counter weights will work loose...those are all lies...

 

I'm planning on doing my clutch this winter and am considering the dual friction centerforce like you mentioned, is anything different about installing it as opposed to installing the reular one or does it just go right in?

 

The guys at Rotary Performance in Garland (Ari and Chris...) installed mine way back when...I pulled the engine and tranny as a unit when it went into the '80...it now is sitting in my driveway while I search for an '81 or '82 body in perfect shape...they pulled the clutch from the original '79 12A that blew its seals and it was still in great shape, so they installed the clutch behind the street port 12A I had built for the old '79....they didn't mention any different method or hardships installing it, they just thought the bob weights were bizarre...

 

sorry, man ... that's just funny! anyway, yeah ... i agree, just get a good clutch and not have to worry for your next 100 HP - hehehe
Centerforce is a great choice. You can also look at ClutchMasters, ACT and RPS ... just read what they have and decide based on your needs as well as your future mods.

 

ive heard that stock is a good choice if you are driving your car daily. i drove a gsl-se with a brand new stock clutch, and it slips good for around tight parking spots, and when he gave me a chance to get on it, when i caught second gear, the speaker box in the back jumped and all the stuff that was stored in the cubber underneath his cd deck (ie: cd's and papers) all flew to the back, no joke.. its pretty crazy. but other than that, i dont have an experience with a centerforce or anything

 

i have a cernterforce and i almost hate the thing. It does not slip. and it is way to touchy and for the money i should of went with a ram assualt those clutches are tough and don't slip and can definitly handl more power than any single puck clutch.

jr

 

whats the weight of the dual friction.

seems like it would be heavy with all the weights and fancy **** on it.

Im going with a RB street/strip for my TII swap.

 

I have the Boenz street/strip clutch on my 12a. Love it!! feels great on the street and just kicks *** at the auto-x
Dont know how it will hold up to a bunch of power though.

 

Well I didn't mean THAT cheap... but the best price is what I should have said next... hmm I'm thinking maybe a small turbo... or maybe a bit of the laughing gas

Thanks for you advice guys!

Well I found out my friend has a hookup with a guy that deals centerforce, so I'm going to check that out if not I'll go with the Bonze street/strip clutch..

My friend has a Dual Friction in his stang and I like it... good grippin power with plently of slip for the parking lots..

matt

 

I have a Centerforce stage I and I dont really like it that much either...It doesnt have a smooth transition into the full grip, if that makes sense. Like if youre at a stop light, and you let it out to smoothly pull away, it will smoothly grip for about 60% of the travel, and then all of a sudden, grip hard. Its taken me a little while to get used to it. When I first started driving with it, I found myself revving up to like 4K and letting the clutch out slower trying to compensate for it, lol. Normally with the old stock clutch I was driving, I could rev up to 2K and hold the RPMs steady at 2K and let the clutch out fully without doing anything else, then after its out, apply more thorttle to accelerate. With this one, I have to hold at 2K to get the thing rolling, then apply more throttle without more clutch to get more slip so it doesnt bite so hard on the takeoffs. Otherwise it boggs too much...Kinda annoying, but it will chirp the tires all the way into 3rd when I want it to, even with the brand new tires on it . All in all, its definalty a good grip, but Im gonna look into other brands before I go back to Centerforce. I figure Ill try a few more brands, and then whoever I like the best, Ill stick with.

~T.J.

 

i am going stock...i want the easy , daily driving clutch...cjf

 

from what you guys are saying it looks like i'm gonna go stock too. Its a daily driver with a basically stock engine. cheaper too

 

My CenterForce Dual-Friction clutch was originally installed new into my '79 when I had that engine built. That engine died a horrible death by oil starvation and that's when I ran into RP and had them build the JDM streetport 12A that could pass emissions. They re-used the CF clutch because it hadn't worn at all in a half year's worth of heavy driving. That all went back into the '79 which was later totaled. I pulled the engine and tranny as a combo and inserted it into the '80 that was at the track and dyno one week previous to its sad demise as detailed in this thread...Sad fate of the '80 rex...
The point is this...since 1996, that clutch has been in daily use and is still got years left in it...it easily shook off 4500 rpm launches on drag day...I never smelled clutch any time during the 17 passes I made that night...the clutch pressure wasn't so great that it put a strain on any of the hydraulics and I easily learned its slip characteristics, which was basically the same as stock...rev to 1800 or so and let it out gently...like RMD mentioned, there did seem to be a point where it went to full engagement pretty quick, but I learned to drive with that in mind...I love that damn clutch, man...sniff....poor damn rex...

 

so basically if you learn to feather it more you can still drive it as smooth as stock?

 

It's all about experience.

 

I had a CFDF clutch on my TII, and I really liked it. The clutch pedal engagement felt softer than the stock clutch, which isn't going to happen with any other single-disk high-performance clutch. The clutch could be feathered just fine from low-rpm starts for regular street driving, but didn't slip a bit on high-rpm race launches. It's really the best of both worlds. However, the CFDF may feel slightly different on a 1Gen.

Yes, many people on this forum have had difficulty with the CFDF installation. The problem is that many people here do not have the skills to install a clutch properly, and do not read or follow the installation and/or break-in instructions, I'm sorry to say. I have never known anybody to have trouble with a CFDF which was installed by a competent mechanic.

Typical installation error which causes CFDF-phobia:
https://www.rx7club.com/forum/showth...threadid=14642

The correction:
https://www.rx7club.com/forum/showth...threadid=16587

The Centerforce I feels basically the same as a stock clutch, and the Centerforce II is a heavy-duty clutch. The dual friction clutch is totally different than anything else on the market.
http://www.centerforce.com/

My friends who don't care about the dual qualities of the CFDF clutch tend to use the ACT products, which are a very good bang for the buck:
http://www.advancedclutch.com/V3/mainframe.htm