lightened oem flywheel...?

[dummi]

thats a good idea but would it sort out the rattle of a single mass

light weight dual mass seems a bad idea if it were to break up due to less material

[rolskii]

Im not so sure on how the dual mass flywheel works, need to see it theory of it, is it offset or are the weights opposed...? better still I have a spare in the shed hanging around... will look tomorrow .. but if you stuck a larger front damper on, its not going to be as big as the flywheel of course!!!!! - so less rotational mass to slow or speed up but with a larger damper it will soak up some crank rattle, but its the weight of the flywheel that stops that... so not all gone i rekon

[s4woody]

i thought it was the gearbox that rattled not the crank.?

[flashyg]

Any dual mass wheel is designed to take up slack. Hardness or aggression will kill it, being gentle will wear it. When it goes get a lightened one if you don't want the comfort and expense of oem dual mass. New clutch should be matched to fly, u cant match a dual mass to a new clutch so both should be replaced when worn, sad but true. So after your car gets older or out of warranty you can make it even better.

[rolskii]

Thx for that Flashyg - Okay I got the theory side of it now .... found a little snippet on Dual Mass Flywheels if anyones interested ........ hell of alot more info available, but this keeps it simple ...

http://www.luk.de/content/en/products/d ... zms_lv.jsp

[dummi]

so we conclude high powered motors,, 600+hp the dual mass will fail? are there any working examples of cars this powerful still using dual mass

[LSWP]

Another source explaining Dual mass flywheels.

http://www.findarticles.com/p/articles/ ... 2#continue

interestingly at the end it says its ill advised to replace a Dual mass fly-wheel with a single mass due to the increased drivetrain noise and possible tranmission failure.

Cheers Rob

[dummi]

it doesn't support its claim possible transmission failure

[KayGee]

Basically it is saying a well designed and correctly operating DMF will absorb more vibrations resulting in a longerlife for the gearbox. However conversley the opposite is also true a badly desined or poorly operating DMF will have detrimental effects on the gearbox. Lightening a DMF will change its vibration absorption, I personally went with a LWFW...

[dummi]

Mihnea has almost completely convinced me to go with light weight flywheel i probably will,, i would like to know from people generally, as i have not actually been inside a car travelling with a lightweight flywheel, what it is like in city centres, motorways, traffic jams,,, opinions are welcome