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-   -   Fracking clutch slippage... [Joe Perez swore in a thread title!] (https://www.miataturbo.net/engine-performance-56/fracking-clutch-slippage-%5Bjoe-perez-swore-thread-title-%5D-42811/)

y8s 01-11-2010 10:21 AM


Originally Posted by Savington (Post 506631)

organic though, it's a street car.

Braineack 01-11-2010 10:26 AM


Originally Posted by Joe Perez (Post 506481)
The current clutch is an ACT "HD" package, in the 1.6 size; ZM1-HDMM. I guess they really are serious about it being good for only 200 ft/lbs. It's got maybe 15,000 miles on it, and only just started slipping recently.

My ZM1-HDMM setup started slipping at 200rwhp (170tq), but only with a passenger in the car, above 6K, or when it was cold; while others made over 240rwhp (200tq) on theirs without slippage.

I'm rocking the same PP and a 6-puck disc without any trouble. However I'd rather get the ZM1-XTMM or FM-II

therieldeal 01-11-2010 10:39 AM

i have an ACT HD pressure plate and a spec stage 3+ full faced carbon/metallic disc that i should probably get out of my garage, considering it wont work with my toyota gearbox :P. it is 1.8 size.

the disc wore a pretty good groove in the pressure plate (i did overheat it once) so they are kind of a matched pair at this point. never had an issue with slippage before or after overheating it. when it overheated i was basically hotlapping at the dragstrip, doing 2nd gear burnouts on 225/50 drag radials and 7000 rpm clutch-dump launches.

the disc alone was almost $300 when i bought it new 3k miles ago. theres about 20k on the pressure plate (used it w/ an organic disc until i got the spec disc)

make an offer?

gospeed81 01-11-2010 10:54 AM

I like my Xtreme.

I don't know what I'm making...but it does feel faster in the colder (artic) weather, and having noticed any slip or change in engagement etc.

matredd 01-11-2010 03:31 PM

The clutch and flywheel Ben is talking about are mine. I took them off the car thinking the clutch had come apart but it ended up being something internal on the transmission.

I went ahead and replaced the parts since I had the tranny off. There was definitely not any slippage with this setup. Pedal feel isn't much more than stock. The biggest difference is how hard it grabs when it does. Considering it was an 8.3lb flywheel and a high torque clutch on a hotside supercharged setup it really wasn't that bad.

Duckie_uk 01-11-2010 03:44 PM


Joe Perez swore in a thread title!
Does no one else remember Joe's colourful thread title when he was having problems with his CAS?


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