Check out my members thread:
http://www.4g61t.org/forum/viewtopic.php?f=9&t=12968
I list all the clutch and flywheel parts there.
Installed to a stock type KM210 FWD trans, but will now be going inside an F5M33 FWD DSM trans with a Quaife.
Essentially the new ACT2100 with an 8.2lb aluminum flywheel.
Hindsight, I would like to install an SFI approved harmonic dampener pulley (ATI/Fluidamper) or go and possibly go back to a stock weight flywheel setup.
Adding weight to the 8.2lb flywheel and rotating mass, or ditching the flywheel and getting the heavier flywheel.
Heavy flywheel and balance shafts (read this article by Jack's Transmission on keeping Balance Shafts for improved transmission life and high RPM shifting
http://www.jackstransmissions.com/pages ... nce-shafts) can help keep your transmission from making crazing noises on accel/decel, as well as help stabilize idle due to crank wip effect.
Things will last a lot longer, with fewer noises.
I love the speed at which you can shift when racing around, with a lightweight flywheel and even using a full face clutch, but would like a softer pedal (for the forces applied to the crank thrust bearing!) and might not notice shifting issues with a heavier flywheel.