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-   -   Matt.... Clutch Question.. (http://forums.pelicanparts.com/porsche-marketplace-discussion/1183854-matt-clutch-question.html)

Macroni 09-17-2025 03:14 AM
Matt.... Clutch Question..
 
What is the difference between Single and Dual Mass?

Thanks.

Matt Monson 09-17-2025 06:34 AM
A dual mass flywheel is designed to dampen NVH better, at the cost of weight. A single mass flywheel is designed to allow for quicker revving and shifting by reducing the rotating mass.

Macroni 09-17-2025 12:14 PM
Thanks Matt

What is NVH?

Mocker 09-17-2025 12:58 PM
noise, vibration and harshness

Mocker 09-17-2025 01:04 PM
They dampen the drivetrain, typically using springs sandwiched inside the flywheel. As Matt says, they are heavy MFers.

https://trade.mechanic.com.au/images...Dflywheel5.jpg

Matt Monson 09-17-2025 01:43 PM
Quote:
Originally Posted by Mocker (Post 12534313)
noise, vibration and harshness
Harmonics.

Macroni 09-17-2025 03:23 PM
Thanks for the education.

Matt Monson 09-17-2025 03:57 PM
Anytime.

From a performance standpoint it’s free horsepower. It’s mass the engine doesn’t have to din. In my experience it also makes it easier to blip for a double clutch rev match downshift.

Mocker 09-18-2025 06:11 AM
Hah. I always heard/read the H was for harshness. Education, indeed.

Matt Monson 09-18-2025 08:09 AM
All good.


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