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-   -   Setup of 949 Race Clutch (https://www.miataturbo.net/race-prep-75/setup-949-race-clutch-61075/)

bbundy 10-24-2011 01:16 PM


Originally Posted by Savington (Post 786971)
Similar. Less grabby, but engages faster (if that makes sense). Probably a bit harder to drive, but that's only because of the massively reduced weight and MOI. The lightest ACT HD/Fidanza combo is still a 22 or 23lb setup - the heaviest 949 twindisc is like 15lbs.

I think the 1.6l Extreme with a 4 puck unsprung on a Fidanza that I’m running is just under 20 lbs. but I think the mass in the 949 twin is closer to the center so the MOI difference is more than a mass comparison would suggest.

Bob

ILoveOffRamps 10-28-2011 09:35 PM

Just as an update. We bled the clutch again, repositioned the pedal a little and it got much better. I then promptly parked the car because there is too much oil coming through the turbo and I haven't had a chance to fix it / investigate. The 1 day I drove on it after the adjustments was much better. I started getting the hang on it pretty easy. I can see how it's possible to street drive it, but like Bob was saying, it's crazy loud.

Savington 10-29-2011 12:25 AM

Take off your entire exhaust system - it makes the clutch much quieter ;)

emilio700 10-29-2011 12:57 AM


Originally Posted by ILoveOffRamps (Post 789306)
.., it's crazy loud.

Because .., well you know.

85z28 10-29-2011 04:31 AM

Because racecar.

NiklasFalk 10-29-2011 06:13 AM


Originally Posted by Savington (Post 789354)
Take off your entire exhaust system - it makes the clutch much quieter ;)

AWR engine mounts with the race bushings are one way to make everything go quiet (or rattle away). With a background noise like being at the dentist, rattle from the clutch will not be a thing you'll notice.

Savington 10-30-2011 06:53 PM

I had MMR Delrin mounts for a little while - I got tired of tightening down major bolts, like the PPF/differential bolts and the subframe nuts. Switched back to Comp mounts and all that went away.

vintagerust 10-30-2011 07:48 PM

Wouldn't it be great if there were magnetorheological engine mounts for the Miata? Soften up while you're idling about, and then firm up when you romp on it.

1slowna 10-30-2011 07:49 PM

I have heard evos that sound like they have parts failing when they push the clutch in. All twin disks rattle a bit when disengaged but some are much louder then others.

hustler 10-30-2011 11:20 PM


Originally Posted by hustler (Post 787203)
...must..spend bonus check on...student loan...do not order...clutch!!!!
/Shatner

This just in:
No bonus check, I hope 949 has the power to go on without my monies. :cry: :burncash:


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