I had cheap petrol engines running in model boats a long time ago.
But nitro leaves them standing.
what i cant make out is why people are buy the expensive engines instead of the cheaper ones and doing simple conversion.
for under 150 you can get a real good strong engine once you take the strimmers apart.
ive got proof sitting right her ein front of me, 41cc zenoah g4k,used in lots of different strimmers,loads of grunt and torque
definitely lighter than a twin set up.
But go to model shop for same engine and its a fortune, all the same internals though.
the same with many of todays so called race boat engines, most are just strimmer and blower engines with a few bits taken off.
Many years ago black and decker made a small chainsaw, it was blue and very similar to the
green 17cc strimmer also by black and decker.
But the blue one was infact a kawasaki 22cc engine that was said in many magazines a specialy made model car engine.
No it wasnt i had one, and my friend had one from a model shop,absolutely identical in every way except the clutch.
But the model shop one was twice the price of a complete strimmer.
Remember the fox f7 22cc petrol model engine ? early petrol strimmer that was as well.
Zenoah, one of the largest producers of strimmer and chainsaw engines in the world.
phill