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OS 46 AX (not stock) RPM

Started by jay1st, May 10, 2010, 01:20:15 am

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OS 46 AX
JETT Stream muffler
some port smoothing, liner raised 1mm, thinner head shim and some crank modding.

APC 9X6 17600 RPM
APC 9x6N 18200 RPM  :ev
106 db !!  :''
Labema 10%

Runs only good @ full thottle
Next thing : venturi instead of carb

BTW, the engine is old, and the bearings are making a funny sqweeking noise, might gain some rpm by changing them to ceramic/hybrid ones..........
Never @ home, always around the world