My MVVS 26cc gasser on pipe swing the Menz S 18-6 at 8600 rpm, that is 250 rpm more than my new ASP 180 fs. How does that number (8600 rpm) on that prop compare to a twostroke glow engine? Is it behind, say an OS 160 or does the pipe make it as strong as the glow engine of the same size without pipe???