Here in The Netherlands someone offered, second hand, a special version of the MVVS 58. This version should have even more power.
Because I had my doubts a mail was send to MVVS.
This answer I got:

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Dear Mr. Meij,

There exist engine No: 3001 P - it is version Prosport which has better bearings mark NTN, stronger conrod bearing INA , tuning intake difuzer on the carburetor , another conrod, titanium prop screw, modified piston, laser marking and better power.

This version will be avaiable not only for the Netherland, but everywhere.

Best regards: Svajda

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If you look at the US MVVS site, the first pictures have this intake diffuzer, and also less strengthening ribs. Are these first pictures, pictures of this special, version?

Groeten,
Hans


Hans Meij / Modelvliegen