Dual mass clutch
Race Director
Joined: May 2000
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I think you are referring to a "dual mass flywheel". Although I've not read in a reliable source that C6 has such, a dual mass flywheel is a two piece design separated by a rubber ring - similar in construction to the a typical torsional damper at the front of the crankshaft.
A dual mass flywheel accomplishes the same thing - damps out torsional vibrations and theoretially makes the drivetrain smoother, but IMO represents a long term maintenance/repair issue as the rubber deteriorates.
Duke
A dual mass flywheel accomplishes the same thing - damps out torsional vibrations and theoretially makes the drivetrain smoother, but IMO represents a long term maintenance/repair issue as the rubber deteriorates.
Duke
Race Director
Joined: Oct 2000
Posts: 15,048
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From: central FL, near the beach.
Dual mass flywheel
not clutch.
Uses a spring loaded flywheel to absorb driveline
shocks.
Better than the c5's restrictive hydraulic lines that slowed
clutch engagement and fried clutches.
Uses a spring loaded flywheel to absorb driveline
shocks.
Better than the c5's restrictive hydraulic lines that slowed
clutch engagement and fried clutches.
Safety Car
Joined: Oct 2001
Posts: 3,504
Likes: 25
From: Insert Wittty Comment here
My understand was that they were going to use a dual mass, but are no longer doing so. This was the reason for the wheelbase increase (deeper bellhousing). But, my understanding is no it is a single clutch...
☠☣☢ Semper Ebrius ☢☣☠
Joined: Jun 2001
Posts: 83,301
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From: Virginia
Cruise-In IV-V-VI-VII Veteran
St. Jude's Donor '06
Originally Posted by J-Rod
My understand was that they were going to use a dual mass, but are no longer doing so. This was the reason for the wheelbase increase (deeper bellhousing). But, my understanding is no it is a single clutch...
Safety Car
Joined: Oct 2001
Posts: 3,504
Likes: 25
From: Insert Wittty Comment here
Hmmmm, ok well, my understanding of things was bit different.... This come from a conversations someone had with powertrain engineers working on the C6. The question related to many of the driveline components.
You can also see this confirmed in this thread...
http://forums.corvetteforum.com/showthread.php?t=832674
Almost everything is identical (drivetrain wise). The exception is the bellhousing which is 1 inch longer for the dual mass flywheel which has now been abandoned. But, even though it has been abandoned, the wheel base remained. Otherwise my understanding is, the wheelbase would not have been stretched 1"...
No mention was made about XLR parts, etc in this decision...
You can also see this confirmed in this thread...
http://forums.corvetteforum.com/showthread.php?t=832674
Almost everything is identical (drivetrain wise). The exception is the bellhousing which is 1 inch longer for the dual mass flywheel which has now been abandoned. But, even though it has been abandoned, the wheel base remained. Otherwise my understanding is, the wheelbase would not have been stretched 1"...
No mention was made about XLR parts, etc in this decision...
Race Director
Joined: May 2000
Posts: 12,712
Likes: 2,271
I don't think "losing" the dual mass flywheel is any loss at all because they can represent a long term repair issue when the rubber disintegrates.
I recall a friend in the late seventies who bought a new 911. Porsche replaced the mechanical spring/damper assembly in the clutch disk with a big rubber bushing, and you can imagine what happened, Yep, it disintegrated after a few years and 20K miles or so (he did not drive it every day).
Porsche quickly abandoned what was a really STUPID idea!
Duke
I recall a friend in the late seventies who bought a new 911. Porsche replaced the mechanical spring/damper assembly in the clutch disk with a big rubber bushing, and you can imagine what happened, Yep, it disintegrated after a few years and 20K miles or so (he did not drive it every day).
Porsche quickly abandoned what was a really STUPID idea!
Duke
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