<VV> octane

[Padgett]

>Really?  I thought it was pretty well known that a 10:1 140 that runs on 
>pump premium is a known answer.

Odd, my impression was that both the 110 hp and the 140 hp engines were 
both 9:1, in fact they both make about the same power up to about 4400 rpm 
and both have the same peak torque, 160 lb-ft just the 110 makes it at 2800 
and the 140 at 3600. This implies that the 110 actually makes more 
torque/hp below 3,000 rpm than the 140. After that the extra throttle area 
of the 140 takes over.

Is interesting though that the 110 and the 140 seem to both have the same 
CR and use the same camshaft and pistons. Are the valves larger ? I show 
two different part numbers but no sizes.

Padgett