In article ,
Chris Bacon wrote:
I can't think of many very new ideas in engine development -
improvements made with materials, maybe.

Practical variable valve timing would be the obvious one with petrol
engines, and the removal of the throttle which causes pumping losses.
Pulsed high pressure electronic direct injection with diesels another. I'm
sure others will think of plenty more.

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*The closest I ever got to a 4.0 in school was my blood alcohol content*

Dave Plowman London SW
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