Originally Posted by straybullitt
No matter. I like the simple 1930's design of the engines. They are simple and reliable, although, maybe not as efficient as they could be.
Here is the Honda prototype.
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Combustion chamber design plays a massive role in the brake specific fuel consumption of an engine. There is a long list of things you can do to design an engine to be more efficient. Simply having pushrods, mech injection, and cooling fins does not mean it can't be efficient.
There is a LOT more to thermal efficiency than just "letz puts an EFI kit on dat an den it will go supa fass n' get doz good empeegeez"!
The platform they are using has plenty of potential for increases in power, reliability, and brake-specific fuel consumption.