10v.... interference engine?

[Duncan Thomson]

> Good observation.
> The Audi turbo pistons are very deep dished with high sides.  This
gives the
> desired compression while still making for valve knockers.
> Why Audi did this I'm not sure, I could only guess its maybe better
> combustion or lower detonation probability.

I guess a sphere is probably a better shape to aim for than a
cylinder... better flow, more even burn etc etc...

thanks for the insight...

cheers
Duncan