I get it, but take out the sales guy , and I'd like to know if there is any validity to the claim......
It seems that a slightly smaller disk might utilize the extra mating surfaces end to end and spin faster.
Come oN MAN!!!! I see some incredible reaching when people are trying to justify performance imporvements / spending money on go fast parts and what not. This is a real stretch if ever I saw one.
".......smaller disc might use the extra mating surfaces..." What are the extra mating surfaces do you allude to here? The 11 inch F'wheel has more surface area than a 10.5 inch disc can touch simply because the 10.5 is a 10.5 and last I know clutch discs were pertty inelastic. Where is the extra mating surface and how is it achieved by a 10.5 disc with an 11 inch plate on an 11 inch wheel? ? The 11 inch disc has a larger surface area than a 10.5 thereby making for more contact area. I fail to see where there is "extra mating surface" comes when using a 10.5 disc on an 11 inch flywheel with an 11 inch Pressure plate
"spinning faster" If you mean that the 10.5 can be accelerated faster by the engine than a 11.0 disc I suppose so given the miniscule difference in mass between the two discs. How that miniscule weight difference (measured in ounces) could translate into a moticeable / measureable performace gain is beyond me. Consider the differences between light and heavy flywheels. We are talking about pounds not ounces making a difference in the way an engine accelerates.
How the clutch disc "spins faster" is totally beyond me. It might "spin up to speed" faster as in paragraph #1 but it certainly does not spin any faster because it is 10.5 inches. It spins at the same speed as an 11 inch assuming the Pressure Plate is locking up and there is no slippage. But spinning faster because it is 10.5 versus 11 inches?????
