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Old 12-01-2014, 03:58 PM
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Roelof
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Join Date: Aug 2007
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Most important is a perfect match of the expansion rates of the piston and sleeve so the perfect fit is secure with a large window of temperature. (In the Fusion-X topic special team pistons are mentioned)
We have played a lot with different piston materials in a non changed sleeve and you can notice a lot in difference. If they do not match a lot you will notice a variable power/performance.

Perfect alignment and low tolerances probably taken from the first batch after renwing all toolbits and a fresh alignment. And maybe also on made a lower speed or more steps to get a lower tolerance and a better alignment.

A better combustion chamber, for sure when it is optimised to the altitude of the event to get the lowest possible head clearance.

And there are different carburator needles to get a better performance.

If you are a manufacturer and do want to have the best for your top driver(s) you can think of everything high tech like F1 crankshaft steel which is light and can be made lighter and balanced perfectly. Low friction bushings, special high grade bearings, berylium pistons etc.
Sounds to advanced but it is possible...
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