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Old 1st November 2004, 20:03   #1
Kings MotorSport
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Spec Stage III Clutch vs. UUC Stage III Clutch

Is the price trade off equal to the performance trade off? Comments / suggestions / feedback appreciated.
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Last edited by Kings MotorSport; 1st November 2004 at 20:05.
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Old 1st November 2004, 20:04   #2
Greco
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

If I'm not mistaken Spec Stage III = UUC Stage I, UUC Stage III is Spec Stage V.
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Old 1st November 2004, 20:05   #3
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

I think it is...i was one of the first people other than those that work at UUc to know about the clutch and I even knew that spec was making the clutches for UUC.

there is a thread soemwhere where Rob L from UUC even discusses this topic.
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Old 1st November 2004, 20:05   #4
Kings MotorSport
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

like the same exact product?
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03' Custom Pearl Blue/Purple M5

Hamann Front Spoiler
Hamann Side Skirts
Hamann Competition Rear Bumper
Hamann Rear Window Spoiler
HRE 540R 19x10 (front) 20x11 (rear)
FK Coilovers (Dropped: 2.5" front, 2" rear)
Ac Schnitzer Front & Rear Sway Bars
Nav TV
Active Autowerkes Short Shifter
Custom straight pipes
MTX 9500D
Memphis M Class 1000 Watt amp
Memphis M Class 5.25 components (Front & Rear)
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Old 1st November 2004, 20:08   #5
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

Is it a smart idea to go with either the Spec Stage IV or UUC Stage III with almost no mods? (Tired of the weak OEM clutch)
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Hamann Front Spoiler
Hamann Side Skirts
Hamann Competition Rear Bumper
Hamann Rear Window Spoiler
HRE 540R 19x10 (front) 20x11 (rear)
FK Coilovers (Dropped: 2.5" front, 2" rear)
Ac Schnitzer Front & Rear Sway Bars
Nav TV
Active Autowerkes Short Shifter
Custom straight pipes
MTX 9500D
Memphis M Class 1000 Watt amp
Memphis M Class 5.25 components (Front & Rear)
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Old 1st November 2004, 20:16   #6
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

honestly you dont need a stgIII uuc for no mods....really.

StgI and stg II are more than capable to handle anything you can throw at them...my supercharged m5 project car only needs a stg III uuc (although i might even need something above that when its done).

Im not trying to tell you NOT to get the stg III but its designed for hard core power additions and does not have a real light touch to it, like the oem does, compared to the stgI and II. As both of them are rated up to 500ft-lbs and beyond (690 for the stg ii). The stg III is rated up to 900.

If you decide to go with the StgII...be warned, it has a very regimented break in procedure that MUST be followed 100% as the kevlar material in the disk needs to be set properly. If it is not followed properly you could experience premature clutch wear, clutch hot spots, slipping and all.
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Last edited by RennSportSC'dKellenersM5; 1st November 2004 at 20:16.
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Old 1st November 2004, 20:20   #7
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

Thank you brother... appreciate the help once more..
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Hamann Front Spoiler
Hamann Side Skirts
Hamann Competition Rear Bumper
Hamann Rear Window Spoiler
HRE 540R 19x10 (front) 20x11 (rear)
FK Coilovers (Dropped: 2.5" front, 2" rear)
Ac Schnitzer Front & Rear Sway Bars
Nav TV
Active Autowerkes Short Shifter
Custom straight pipes
MTX 9500D
Memphis M Class 1000 Watt amp
Memphis M Class 5.25 components (Front & Rear)
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Old 1st November 2004, 20:23   #8
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

no problem...

the stgII should be MORE than enough to hold anything that a Normally aspirtated application in the M5 can throw at it.
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Old 1st November 2004, 22:30   #9
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

I had the impression from one of Rob Levinson's earlier posts that, while the flywheel for the UUC big clutch kit, and the disc for Stage II and up kits, are manufactured by Spec, the kits that Spec itself sells for the E39 M5 retain the factory 9.6 in. clutch diameter and use a reworked LuK pressure plate. Is this not correct, and only UUC sells the 11.0 in. clutch kit, based on the stock BMW 850CSi pressure plate and disc (refaced by Spec for the higher stages)?

Regards, Dick Roberts
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Old 1st November 2004, 22:59   #10
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Re: Spec Stage III Clutch vs. UUC Stage III Clutch

Dick,

If my memory serves correct too...without the help of the actual post, that information you provided was correct
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