Miata Turbo Forum - Boost cars, acquire cats.
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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Suspension, Brakes, Drivetrain (https://www.miataturbo.net/suspension-brakes-drivetrain-49/)
-   -   fab9 act xtss vs FM level 2 (https://www.miataturbo.net/suspension-brakes-drivetrain-49/fab9-act-xtss-vs-fm-level-2-a-88851/)

aidandj 05-05-2016 02:47 PM
I think you will break a 6 speed before you slip an fm2

AlwaysBroken 05-05-2016 02:54 PM
Originally Posted by TNTUBA (Post 1328783)
I've used a FM clutch in my car for 2 seasons of racing. That included ~ 180 Pro Solo launches in the 380-400hp range on 275mm wide tires.

When I pulled the motor out this winter the clutch disk looked fine. I could have used it again...but I wasn't putting a used disk back in there when a replacement disk is only like $150 bucks.
Excellent question. How much torque was this?

I think it's important to be ready for when corky finishes the T5 conversion kit.

aidandj 05-05-2016 02:56 PM
Originally Posted by AlwaysBroken (Post 1329252)
Excellent question. How much torque was this?

I think it's important to be ready for when corky finishes the T5 conversion kit.
Then start this discussion again in 20 years? It will require a custom clutch anyways.

psyber_0ptix 05-05-2016 02:56 PM
Originally Posted by aidandj (Post 1329250)
I think you will break a 6 speed before you slip an fm2
I think I'm sold.

shuiend 05-06-2016 10:28 AM
Originally Posted by AlwaysBroken (Post 1329252)
I think it's important to be ready for when corky finishes the T5 conversion kit.
ROFL. I love Corky, but thinking the T5 conversion kit will ever be finished and out on the market is just silly. I think TSE will have their new trans setup out well before Corky does, and I honestly don't see TSE having theirs done and ready to sell to customers any time soon.

AlwaysBroken 05-06-2016 11:28 AM
I was joking guys.

I found a post where Corky described the remaining work on the kit as "a piece of cake." It was from 2011.

Ben 05-06-2016 11:54 AM
Originally Posted by psyber_0ptix (Post 1329248)
This data point definitely helped me. But what torque?
I don't think Eric would want me to say anything except for "a lot." Eric's car has a much better powerband than any other 4-cylinder Miata I've worked on.

afm 05-07-2016 10:01 PM
Originally Posted by Chooofoojoo (Post 1328697)
I thought my miata's clutch was broke because it was so soft.
I've used ACT XT pressure plates in other cars. I have also feared I messed up a hydraulic overhaul in my Miata because the pedal is so light. FM1, though.

btabor 05-08-2016 12:01 AM
I have a XT 1.6 pp with a street disc on my vvt swap and it is heavier than my uncles FM2. I like it, I just wouldn't want to daily it. I also go through a slave cylinder every year or 2, but those are $7 from my distributor so not a big deal.

AlwaysBroken 06-30-2016 06:01 PM
BTW, I went with FM level 2.

Installed everything a bit over a week ago and then spent a week looking for transmission bolts that were hiding in a plastic bag on a shelf the whole time. And I'm still missing the big one with the nut just below the starter. Annoying.

I did manage to clean the garage in the process of trying to find the bolts.


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