Would the standard Continental and Lycoming engines benefit from the application of direct fuel injection and a small increase in compression ratio.
The Lycoming rep at the airshow told me that the Ie2 series full FADEC engines have not disappeared, just that the engines are being prepared fro military use and the US DoD is bankrolling its development, after which it will be released for public purchase. I belive the Ie2 does use direct injection.
How efficient are the 2 valve cylinderheads on standard C & L engines. In light of todays complex 4 valve , pentroof, stratified charge, tumble swirl cylinder heads of todays automotive engines, the aircraft cylinderheads seem very plain and low tech/inefficient.
Any comments?