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Old 11-12-2012, 10:02 AM   #41
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No ******* way in hell the input shaft will wear down
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Old 11-12-2012, 03:09 PM   #42
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the buzzing on coast down is angular slop between the floater/pressure plate and the cover. When you are accelerating and letting the clutch out, the assembly winds up against one side of the "teeth" or "splines" in the clutch assembly and when you let off the gas, you're changing the loading against the clutch teeth/splines so that the variations in torque and vibrations cause them to rattle against the clutch cover. The stock clutch doesn't have a free floater or pressure plate. The PP is mounted solidly to the clutch cover and has nothing to rattle against.
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Old 11-12-2012, 06:43 PM   #43
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i have one of these on the race car and find it awesome! has made my starts so much better and it is repeatable time and time again. who cares about a bit of noise! the weight of the unit makes gear changes almost instant! here is a start i like


Hung out to dry at the hairpin but **** happens. all cars infront were on slicks and in a different class. i was on r888's and got a class win. even if i was pushing way too hard trying to catch that evo.

Last edited by mr2daj; 11-19-2012 at 05:22 AM.
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Old 11-15-2012, 07:57 PM   #44
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Originally Posted by Faeflora View Post
No way the input shaft will wear down
On an unsprung hub?

Think again.
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Old 08-01-2017, 09:16 PM   #45
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Bringing this thread back for some feedback. It's 2017 now. I bet a lot of people who were running these back when they came out have some more experience/mileage. Can any of you chime in about how many miles you've gotten out of the clutch? Looking for organic.
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Old 08-01-2017, 10:39 PM   #46
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Bringing this thread back for some feedback. It's 2017 now. I bet a lot of people who were running these back when they came out have some more experience/mileage. Can any of you chime in about how many miles you've gotten out of the clutch? Looking for organic.
949 doesn't sell organic anymore. The organic lasts me about 24 autocross events plus around 4000 street miles.
Since 949 stopped selling the organic discs at one point and I didn't want to deal with the harsh ceramic stuff, I had to start sourcing replacement disks from ClutchNet - feel, longevity, etc. is just like the 949 ones.
949 just started selling new Carbon/Kevlar replacement disks - I am curious how do these compare to the organics regarding engagement and life.

Last edited by j_man; 08-02-2017 at 12:39 AM.
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Old 08-01-2017, 11:08 PM   #47
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949 doesn't sell organic anymore. The organic lasts me about 24 autocross events plus around 4000 street miles.
Since 949 stopped selling the organic discs at one point and I didn't want the to deal with the harsh ceramic stuff, I had to start sourcing replacement disks from ClutchNet - feel, longevity, etc. is just like the 949 ones.
949 just started selling new Carbon/Kevlar replacement disks - I am curious how do these compare to the organics regarding engagement and life.
That doesn't seem like a lot. Idk I may be wrong. Would FM stage 1 have better life then 949s? Not racing or anything just street use with a turbo. I hope to get at least 50k or something street miles
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Old 08-02-2017, 12:30 AM   #48
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That doesn't seem like a lot. Idk I may be wrong. Would FM stage 1 have better life then 949s? Not racing or anything just street use with a turbo. I hope to get at least 50k or something street miles
Since when do FM sell a twin disc clutch? But why asking about a 7" race clutch if not racing?
949 also sell single organic disc, stock diameter clutches which last way longer since obviously there is way more material on the larger diameter disc which should be a better fit for your street car

Last edited by j_man; 08-02-2017 at 12:42 AM.
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Old 08-02-2017, 12:40 AM   #49
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Since when do FM sell a twin disc clutch? And why asking about a 7" race clutch if not racing?
949 also sell single organic disc, stock diameter clutches which last way longer since obviously there is way more material on the larger diameter disc which should be a better fit for your street car
Yes sorry that's exactly the type of clutch I was referring to not the twin clutch. Anyone have experience with the sport clutch 949 offers? Just regular organic
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Old 08-02-2017, 12:46 AM   #50
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Yes sorry that's exactly the type of clutch I was referring to not the twin clutch. Anyone have experience with the sport clutch 949 offers? Just regular organic
Here is mostly racing stuff. Try this section of the forum:
https://www.miataturbo.net/suspensio...drivetrain-49/
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Old 08-02-2017, 09:22 PM   #51
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That doesn't seem like a lot. Idk I may be wrong. Would FM stage 1 have better life then 949s? Not racing or anything just street use with a turbo. I hope to get at least 50k or something street miles
I don't do this much BUT in standard MT fashion im gonna have a bitch.....why are you in the race prep thread resurrecting an older post that is twice not applicable to you?

- not race
- not twin plate ?
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Old 08-02-2017, 09:33 PM   #52
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I don't do this much BUT in standard MT fashion im gonna have a bitch.....why are you in the race prep thread resurrecting an older post that is twice not applicable to you?

- not race
- not twin plate ?
Because I'm using my phone and the phone friendly web page sucks. I just searched 949 clutch longevity and this was the first thread that popped up. The word racing just didn't pop out. Any more questions detective?
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Old 08-02-2017, 09:37 PM   #53
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Not at this stage but don't leave town!
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Old 08-02-2017, 09:38 PM   #54
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Not at this stage but don't leave town!
Lol will do
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Old 08-02-2017, 10:01 PM   #55
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Because I'm using my phone and the phone friendly web page sucks. I just searched 949 clutch longevity and this was the first thread that popped up. The word racing just didn't pop out. Any more questions detective?
Don't take it too personally. Just understand that we expect a certain degree of care from our menbers.

The reason you came to this forum is because it is the best info on the web for Miata stuff. That is because we police the content and posts. We can either sugar coat and give everyone a participation medal of life, or we can occasionally irk noobs that get lazy with the search function.

Welcome!
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Old 08-02-2017, 10:05 PM   #56
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Originally Posted by emilio700 View Post
Don't take it too personally. Just understand that we expect a certain degree of care from our menbers.

The reason you came to this forum is because it is the best info on the web for Miata stuff. That is because we police the content and posts. We can either sugar coat and give everyone a participation medal of life, or we can occasionally irk noobs that get lazy with the search function.

Welcome!

Didn't take it personally but thanks for the advice! Btw though, where can I get me one of those medals? lol
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