R/C Tech Forums - View Single Post - 2017 OS Speed R2103 3.5cc Nitro On Road Engine
Old 08-15-2017 | 01:17 PM
  #24  
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Roelof
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Joined: Aug 2007
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Thanx Rody, nice to hear.

I know that a lot can be done to make the flow better but a compromise is done in the limits of the machines and the total machine time working on 1 part. New machines or just new tools can make a difference in the posibillities of the end result but also some design changes which were overlooked or found during the 2102 era can easilly adapted in a new named engine. Can you tell me if materials have changed? A better fit of the piston in the sleeve with a wider temperature window does give a better performance which does not need a larger timing.

To me an extra cut or a re-shape is not a real re-design but more like an evolution although I stronger believe the changes are needed to add something new as a selling gimmick.
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