Other than the improved gas flow I can see tremendous power gains can be made from the lightening of reciprocating parts.

The force required to move a valve at a given speed and over a period of time can be calculated and it is quite clear that a lighter valve offers significant advantages, particularly at high RPM.

A further advantage would be the better cooling achieved by the valve and the consequent avoidance of the catastrophic valve failure that we have seen in race engines.

When you see the simplicity of this idea you have to wonder why it was not thought of much earlier in the development of high powered engines. Quite probably it is an idea, like water injection, that has been covered up by the petrol companies who did not want to loose sales because of the improved efficiency of petrol engines.

Peter

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