knock detection

[Jason Wolfe]

> >Octane requirement goes down as rpm goes up....

>Really?

>Do tell.  I'm all ears.  Well, not like Price Charles or Ross Perot, but
>you
>get the idea. ;-)

'Tis true, Geo. I'm sure Bruce will give you a full explanation, so I won't
try, but this phenomena is why motorcycles can run such high compression
ratios on pump gas--I believe some bikes are now as high as 13:1 from the
factory. Their narrow bores (compared to auto engines) affects their
effective detonation/knock threshold as well.

Jason Wolfe