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Button Clutch 4.5 Inch Quarter Master

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Old Jul 22, 2012 | 07:36 PM
  #1  
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Default Button Clutch 4.5 Inch Quarter Master

Like the title says, here are a few pics of the clutch setup in my F Prod Miata
It is a 4.5 inch twin disk Quarter Master and a Miata flex plate for starter duties, the throw out bearing is a internal slave Tilton unit.

Saving rotational mass is a must when you have low hp and tq, I wonder if this kind of setup would work for FI cars.

I am running a Quaife Seirra dog box the spline count is 23 on the input shaft. Im not sure if Quarter Master has a friction disk that fits a stock Miata input shaft but it would be easy to find out.

Here are a couple of pics






The car was on truck tires for the first race, I was running BFG r1s's as a
tire test, the tires were 225 50 15, I am now on proper Hoosier slicks and
have the ride height down were it should be.
Attached Thumbnails Button Clutch 4.5 Inch Quarter Master-imag0574.jpg   Button Clutch 4.5 Inch Quarter Master-imag0578.jpg   Button Clutch 4.5 Inch Quarter Master-0032012rberrington_02.jpg   Button Clutch 4.5 Inch Quarter Master-0032012rberrington_01.jpg   Button Clutch 4.5 Inch Quarter Master-imag0577.jpg  

Old Jul 22, 2012 | 07:48 PM
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geez, talk about hardcore
Old Jul 23, 2012 | 04:57 PM
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And I thought my tilton twin 5.5 was radical.
Old Jul 23, 2012 | 08:50 PM
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Can you still drive it onto a trailer?
Old Jul 23, 2012 | 09:40 PM
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Originally Posted by Savington
Can you still drive it onto a trailer?
does not count if with starter.
Old Jul 23, 2012 | 09:54 PM
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Originally Posted by y8s
does not count if with starter.
I was gonna say pull start.

lawlz
Old Jul 23, 2012 | 10:25 PM
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It's so cute!!!
Old Jul 23, 2012 | 10:33 PM
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Originally Posted by Savington
Can you still drive it onto a trailer?
Any good trailer should have a winch on the front. No reason to burn ANY clutch riding it up the trailer.
Old Jul 24, 2012 | 01:56 AM
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Originally Posted by chpmnsws6
Any good trailer should have a winch on the front. No reason to burn ANY clutch riding it up the trailer.
I agree, which is why I don't burn the clutch. If I did, I think I would have noticed by now - I've been driving cars on and off flatbed trailers for 2+ years now.
Old Jul 24, 2012 | 02:37 AM
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It can driven into/on a trailer but i prefer to winch it on, 1st gear is good to 57-58mph so it is hard on the clutch but doable. Moving the car in the paddock is tricky but can be done w/o abusing the clutch. It took a while to learn how to gently get the car moving under its own power for paddock driving, nothing like having a car that makes you look like a noob every time you get in it.
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