Bob wrote:
Wow!

Now that's what I was hoping to see.

Okay, maybe a PSRU using belts. But not vee-belts. There is two
examples of v-belt drives we can use to draw data from, the one on
the Headwind, another on the PL-4. Both call for some wizard
machining and both need matched sets of belts, in that v-belts stretch
and you end up with slippage. This was covered... 'way back when
sometime (and I've probably got the details wrong).

The folks at Valley Engineering (sp?) have shown us how to do it with
a cog-tooth belt... which may also apply to some sort of serpentine
arrangement.

Would a timing belt work? I usta have a Pontiac that had a belt-
driven cam...


snip
According to the Valley web site, they are using a 'poly-V belt'. If you
look closely at the pics, you can see that the pulleys are multi-rib,
not cog.
http://www.valleyengineeringllc.com/big-twin.php

Charlie