ZR-1 Net Registry Forums - View Single Post - Dual Mass vs. Single Mass Flywheels, Advantages/Disadvantages??????????

KILLSHOTS · 08-17-2014

The heavy dual mass was used to enhance balance and quiet the rattle that's inherent in the ZF6, which is basically a bulletproof truck transmission adapted to work in our cars. If you remove it and move to a lighter single mass, the advantage is that the car will rev much more quickly and will basically mimic an increase in HP. The disadvantage is that the transmission will most likely sound like it's about to fall out of the car. It won't; it will just sound that way. Not ALWAYS...some guys manage to get theirs balanced pretty well and I hear that increasing the idle speed helps somewhat. But my understanding is that MOST ZF6s with lighter single mass flywheels rattle like hell.

08-17-2014	#2
KILLSHOTS Join Date: Feb 2014 Location: AZ Posts: 857	Re: Dual Mass vs. Single Mass Flywheels, Advantages/Disadvantages?????????? The heavy dual mass was used to enhance balance and quiet the rattle that's inherent in the ZF6, which is basically a bulletproof truck transmission adapted to work in our cars. If you remove it and move to a lighter single mass, the advantage is that the car will rev much more quickly and will basically mimic an increase in HP. The disadvantage is that the transmission will most likely sound like it's about to fall out of the car. It won't; it will just sound that way. Not ALWAYS...some guys manage to get theirs balanced pretty well and I hear that increasing the idle speed helps somewhat. But my understanding is that MOST ZF6s with lighter single mass flywheels rattle like hell.