AdsoYo

A quick run down of the car:

'94 LT1 Trans Am with 350 rwhp, 3600 lbs, 3.73 rear end. It's my daily driver all year on dry days. 2 or 3 times a month it sees hard shifting either on a twisty mountain road or drag strip.

I've been running a Spec aluminum flywheel since I converted to a T56 in 2007. My first clutch was a Spec stage 2 and it chattered like crazy. In 2009 I had the flywheel resurfaced during the engine swap. The chatter went away for a while then eventually came back. In 2010 I replaced it with a Competition Clutch stage 4, had the flywheel resurfaced again and it now chatters like crazy, too. I've also had slight bucking at part throttle cruise with the new engine.

I want to stick with aluminum for weight savings and a freer revving engine. The reason I'm looking at Ram (18 lbs) over Fidanza (12.5 lbs) is because I ran across a thread where someone mentioned a heavier flywheel will help dampen bucking. Is there any truth to this?

After dealing with all this clutch chatter, I also want to avoid warping and I figure a heavier flywheel with more material will resist warping. Ram is pretty much the heaviest aluminum flywheel I could find while still being lighter than the stock iron (24 lbs).