Folks should note Dick's comments - having "followed" him trying several of these setups, and actually owning some of his previous ones, he *knows* what he speaks.

I've only recently run the Mejzlik 17 x 10 on the MVVS 1.60 /Mac's 1092. Didn't tach it, too new, and who cares? It WORKS for Masters, no doubt about it. Have a 18 x 8 which will be next trying to slow it down a bit, yet still have pull...but as it is right now, I would (and probably will) use it in competition with no hesitations about it's capability.

Assuming a "gold standard" of Power to be the OS 1.60 piped, or the YS 1.60DZ on 30%, an equivalent piped gasser will HAVE TO BE a piped setup in the 40cc size. Problem there is 40cc gassers get larger, heavier crankcases, and then you have to go to exotic materials, complex constructions, and ridiculous weight conservation extremes and STILL be over 11lbs.

If there wasn't such a stinkin' bias about "you gotta have a 2M bird", the gasser 25-30 cc piped setups could make smaller airplanes perform on a par with the 2M with larger motors. Having had a Showtime - dang fine design, fully-capable, but poo-poo'ed by the masses, so therefore not "viable". A shame.