Hey everyone so I currently have the ACT street disc clutch with the ACT aluminum flywheel and I am switching to an exedy twin disc HD within the next two weeks or so. So my question is, since the exedy twin set up probably weighs more than my current ACT clutch/flywheel set up, will I see a loss in power After I switch clutches? Or will it not make any difference? Thanks

 

No noticeable difference at all in terms of power (unless you had a bad/slipping clutch).

 

I wonder if these 2 set ups are pretty close in weight anyways?

 

I read that since it's heavier it could slow down how fast it revs. That wouldn't reduce power?

 

The added weight (if there is any) from a single clutch to a twin disk conversion is soo minuscule to actually make a difference in performance. It is absolutely negligible.

If anything, switching to a twin clutch rather than a single would transfer the power to the drivetrain more efficiently and "gain" you more power, so to speak.

It's the same idea with the Fluidampr crank pulley vs stock crank pulley.
Although the Fluidampr pulley is much MUCH heavier than the stock crank pulley, it has no effect in the power produced from the engine.
I might get flamed for this, but I feel that this is a feasible comparison.

 

the answer has to do with where the rotational weight is. On multi plate clutches, the assembly is usually much smaller in diameter than the single plate clutches. This means the mass at the edge of the rotating assembly is closer to the center of the crank. The closer the weight is to the center , the less effort required to get it to turn. Think large wheel, small wheel . Even if the multi plate weighed more, the rotational mass is less due to the smaller diameter. The effect cancels each other, or may even mean faster rev if the weight gain is marginal and the rotational weight is less.

Adding a lighter flywheel with the mass moved more to the center as per a multi pack clutch, also improves the ability to rev faster.

 

Oh ok so twin disc clutches have smaller diameter plates then single disc clutches? I never realized that.