hi everybody.
I just got my new Ripmax Rapier and I installed a new Rossi 0.45 engine with Tune Pipe.
what are the best prop's I should use in general and for the trial run?
What damage can be made to the engine if I do the trial run with the Tune Pipe instead of the original muffler?
Thanks.

[sm=thumbup.gif]....ask the man who owns one....

....the 10-6 is a good starting out/break-in/trial run prop....

....then the 9-7, or 9-8....for revs and speed.

Dave.

Thanks Dave.

[sm=thumbup.gif]....