Balancer Shaft

[f1.redbaron]

I was reading my free issue of Toyota's One Aim magazine, when I found this:

"The Toyota Motor Corporation is no stranger to V8s. But its vibration solution for road cars, a balancer shaft that offsets the sideways pendulum effect of the crankshaft, is not applicable to an F1 powerplant because of the high revs involved"

One Aim, Spring 2006

I'm trying to find out a little more about the correlation (or the lack of) between the balancer shaft and the F1 V8's. Can anybody offer a more detailed explanation?

Thanks

[DaveKillens]

Two balance shafts rotate in opposite directions at twice engine speed. Equally sized eccentric weights on these shafts are sized and phased so that the inertial reaction to their counter-rotation cancels out in the horizontal plane, but adds in the vertical plane, giving a net force equal to but 180 degrees out of phase with the undesired second-order vibration of the basic engine, thereby canceling it.
http://en.wikipedia.org/wiki/Balance_sh ... rnal_links
http://www.saabcentral.com/~munki/techn ... shafts.htm
http://www.answers.com/topic/engine-balance