Recently I bought a used pylon Mustang and two Monza .21 engines. (one for spares)
I tried to find any data on these engines, but so far have not been very successful.

I have run one with a small tuned pipe and 8x6 prop, and it runs very well at about 16,500 rpm.

I would appreciate any information on power/rpm range and propellors to use. Anything, good and bad is welcome. :tired:

Hello Try this web site maibe ius usefull www.elleemmeshop.com/model2/motori2/ops_chart.htm

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