Centerforce question
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 3,429
Likes: 20
From: Kingston Ontario
Centerforce question
I'm looking at Centerforce clutches. I see some 11" clutches saying 60% increase in holding strength and some saying 90% increase. Is the dual friction disc the reason for the 90% increase over a regular disc with the same pressure plate? Thanks.
Pro
Joined: Dec 2006
Posts: 582
Likes: 3
From: Glen Allen (Richmond) Virginia
I put one in my 69 BB but did not get the dual friction (they are matched sets so you cannot just replace the disk) My single disk is very left leg friendly and holds like a son of a gun. 
Melting Slicks
Joined: Nov 2004
Posts: 2,672
Likes: 6
From: Nevada City California
The dual disc clutch has been used in SCCA Trans Am racing series during the heyday to prevent leg fatigue in the '69 Camaros during the grueling several hour races with hundreds of shifts involved. It was also used in drag racing events and put behind engines developing up to 1200 hp. This clutch was standard equipment with '71 LS6 Corvettes ordered with M22 transmissions. It also was an expensive option in 1969 costing $79.00 as an option, with only 102 Corvettes ever ordered with it, out of over 38,000 cars.
Thread Starter
Melting Slicks
Joined: Aug 2006
Posts: 3,429
Likes: 20
From: Kingston Ontario
Le Mans Master
Joined: Mar 2004
Posts: 7,465
Likes: 1,485
From: Little Rock AR
The only other thing that you might want to worry about is that the Dual Friction clutch is only available as an assembly while the Centerforce 2 is available one piece at a time for service purposes.
Hope this helps,
-Mark.
