dual mass flywheel
01-19-2004, 08:54 AM
#2
Race Car
Join Date: Jun 2003
Location: Albany, CA: celebrating 100 years of independence from Berkeley, CA
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As the name implies, it's a really big flywheel (and weights at least twice as much and costs twice as much). Porsche used them on the 968 -- and I believe to help control torsional vibration and assist with idling. I'm not sure why they didn't need it on the S2. In fact, many 968 owners go back to single-mass (or lightweight) flywheel to reduce rotational mass which lets you rev up much faster -- but experience increase in some flywheel chatter.
Bottom line -- you don't want it. It won't fit inside your bellhousing, anyways.
Bottom line -- you don't want it. It won't fit inside your bellhousing, anyways.
01-19-2004, 12:04 PM
#4
Three Wheelin'
It was used on the 964 and 968. It has two pieces of metal seperated by some squishy stuff and held together with rivets. The metal front and back can turn up to 15 degrees. The 968 version weighs 27 pounds. It provides some cushioning of the drivetrain. I will be putting mine back in when I change the clutch but some owners switch to one piece light weight flywheels. I looked but could not find a one piece usint over 14 pounds.
http://www.specclutch.com could be a good place to look if you are planning to change your flywheel. Had I bought a ligher one these guys would have had my business.
http://www.specclutch.com could be a good place to look if you are planning to change your flywheel. Had I bought a ligher one these guys would have had my business.
01-19-2004, 12:04 PM
#5
Three Wheelin'
It was used on the 964 and 968. It has two pieces of metal seperated by some squishy stuff and held together with rivets. The metal front and back can turn up to 15 degrees. The 968 version weighs 27 pounds. It provides some cushioning of the drivetrain. I will be putting mine back in when I change the clutch but some owners switch to one piece light weight flywheels. I looked but could not find a one piece usint over 14 pounds.
http://www.specclutch.com could be a good place to look if you are planning to change your flywheel. Had I bought a ligher one these guys would have had my business.
http://www.specclutch.com could be a good place to look if you are planning to change your flywheel. Had I bought a ligher one these guys would have had my business.
