[blykins]

I think you're right on most cases Ron.....very small clutches....and I'm pretty sure they are 1500 or less.

Most of the V8's they use are overhead cam I believe. No pushrods....All valvetrain components are as light as they can get without compromising strenght.....titanium valves, spring retainers, valve locks, etc....

I was looking around on the internet and even did some research on this while in engineering school....there are a couple of race teams experimenting with computer controlled valve actuators....no cam. The computer tells the valve when to open.

If I remember correctly, the torque and horsepower ranges are extremely high.....I think way up in the rpm range....Kinda like a crotch rocket street bike....

Also pretty sure they idle at around 5-8k rpm.....