what is the stock weight of a 280Z 2+2 flywheel??? I was told to use the 2+2 because of it had more surface area ( less slipping), and I couldnt afford the high performance clutch parts, along with an light flywheel. Now that I do have the funds, I would like to upgrade. What kind of difference does an 11 lb. flywheel make in exceleration???

I don't know the weight of the 280 2+2 but I like the performance that an aluminum flywheel has added to my car. You will loose some off the line launch but once you're in the R's it cranks! I remember being told long ago that every pound off of the flywheel is like 10 pounds off of the cars weight performance wise.