[Land-speed] Cam Belt-Drives

[Chris Harris]

Interesting data, despite lack of harmonic dampening with belt drive, still 
wouldn't use anything else. They're a super nice setup, very dependable and 
make cam timing changes a snap when dyno flogging etc.
Chris Harris...............NZed.

> Mayf's timely question has raised another issue. If one was to believe
> advertising you would think that a belt drive was a magic excelsior to
> dampen all the bad harmonics coupled to the cam. Not being an engineer it
> sounded like a plausible solution. However, as a technocrat suspicious of
> unsubstantiated advertising, I am always looking for good data proving the
> supposition. I am still neutral about belt drive claims. Testing and
> engineering analysis to prove belt-drive claims is non-trivial and
> expensive. In Experimental Aviation a belt-drive-prop-reduction-unit has
> always claimed, among other things, to be beneficial due to its dampening
> characteristics.  So, in absence of good data, it is refreshing to see an
> interesting article that appears to debunk the status quo.
>
> http://www.eaa.org/experimenter/articles/2009-10_beltdrive.asp