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quartermaster twin disc life????

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Old Jun 16, 2012 | 12:45 AM
  #1  
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quartermaster twin disc life????

ive had the 8 leg in my car since December, the car was daily driven for the most part and ive put maybe 3500-4000 miles on it and about 20 passes and its starting to slip under high boost. Low boost the clutch holds. How many miles have people gotten on this clutch??? with or without track time?? any information would be helpful.
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Old Jun 16, 2012 | 09:32 AM
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This does not make me very happy
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Old Jun 16, 2012 | 12:46 PM
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Originally Posted by Rookie05r1
ive had the 8 leg in my car since December, the car was daily driven for the most part and ive put maybe 3500-4000 miles on it and about 20 passes and its starting to slip under high boost. Low boost the clutch holds. How many miles have people gotten on this clutch??? with or without track time?? any information would be helpful.

Give us more info. Hp/trq of the car and is it a street version or drag version.
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Old Jun 16, 2012 | 05:00 PM
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not too impressive for stock turbo car. for me not surprising. the friction material used in these clutches simply wears out quickly when slipped. you have to slip every clutch from stop to get car moving. and depending on driver this could take a huge toll on friction material quite quickly. remember some people burn up stock clutches running in the 13s. others can take the stock clutch deep into the 11s. given a stock clutch is easy to drive compared to a rally designed twin. imagine the variance you would get with a difficult to drive clutch.
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Old Jun 16, 2012 | 07:27 PM
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I have seen the variance in mileage on 7.25in Twin clutches. They are so light that they will stall out on hills very easily so more slipping is required.

I daily drove a PTT with the softer sintered bronze and it drove GREAT and Shifted AMAZING but it was hard to slip and caused wheel hop at stock turbo power levels at the track. Stock clutch was a much better fit for stock turbo althought the engine felt much more anemic with the stock weight clutch/flywheel combo.

I am going to make the evo a weekend car so I will probably go back to the twin with sintered iron disks and hope it will hold the power of a 6262 powered evo. Only MAJOR drawbacks were the decel noise amd short life using true daily driver status.
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Old Jun 16, 2012 | 07:37 PM
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I am running the old 6leg version, I got right about 10k on the disks. Disks lasted me exactly 12 months. Daily driver, LA traffic stock turbo 460hp/440tq. I hit 2 road race days, and about 6 1/4 mile days.

The rebuild is 280 bucks for new disks, plus the 40 bucks in fluid and gaskets. For me knowing I can beat the **** out of my car at anytime is worth the rebuild times.
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Old Jun 17, 2012 | 07:10 AM
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Originally Posted by TheBoz
I am running the old 6leg version, I got right about 10k on the disks. Disks lasted me exactly 12 months. Daily driver, LA traffic stock turbo 460hp/440tq. I hit 2 road race days, and about 6 1/4 mile days.

The rebuild is 280 bucks for new disks, plus the 40 bucks in fluid and gaskets. For me knowing I can beat the **** out of my car at anytime is worth the rebuild times.
the rebuild will never cost that much. add another 250+ for pressure plate and floaters that will not be reusable. if you install dics only you will be lucky to get 2500 miles from them second go round
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Old Jun 17, 2012 | 07:16 AM
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Originally Posted by 94AWDcoupe
the rebuild will never cost that much. add another 250+ for pressure plate and floaters that will not be reusable. if you install dics only you will be lucky to get 2500 miles from them second go round
i agree.
i got 5k miles on my 1st 6 leg QM clutch. replaced disks and floaters and got maybe 1500 miles. we then rebuilt it again and once we took the car off the lift and drove it it slipped the second i hit boost. i then ditched the QM clutches and bought OS giken triple plate. great clutch just a PITA to shift at higher RPM's. i am not back on the QM new 8 leg so we will see how it go's.
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Old Jun 17, 2012 | 10:02 AM
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Originally Posted by 94AWDcoupe
the rebuild will never cost that much. add another 250+ for pressure plate and floaters that will not be reusable. if you install dics only you will be lucky to get 2500 miles from them second go round
I am looking to upgrade to the 8leg version after this last rebuild, so I dont need much life out of it. As long as the flywheel, floater, and pressure plate are within spec, and as long as the step height is still correct, I am just going to replace the disks. I am not even going to surface the flywheel.
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Old Jun 17, 2012 | 12:24 PM
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Had to essentially rebuild a brand new 8Leg (not the clutches fault) and it cost about 500 bux.
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Old Jul 23, 2013 | 01:12 PM
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i managed to get 18k miles out of the 6lg and 25k out of the 8lg. the 8lg failed last weekend
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Old Jul 23, 2013 | 01:26 PM
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I run the quarter master 8 leg in my black EVO and white EVO. The Junk Box has the race version and my DD has the street version. I have about 8,000 miles on my white EVO that is daily driven. Drove it all year round even in the bad Chicago weather. I have gone to the track 3 times with the car making around 20 total passes. Car runs in the mid 11s, and so far the clutch is holding very strong. No slipping whatsoever
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Old Jul 23, 2013 | 01:26 PM
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I've got a couple thousand miles on my 8 leg so far. I really hope it lasts longer than 10k!!
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Old Jul 24, 2013 | 06:37 AM
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I have 190 miles on my 8-leg with no launches and don't go fast. Mine is working great.
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Old Mar 1, 2014 | 05:35 PM
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I got 2k miles on my 6legs and it start to slip on high rpm.
Going to replace the disc n see how long it will last.
Look like these quartermaster twin dont last that long unless u drive like a grandma on it.
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