The goal, or it's advantages are, high power density, high efficiency, low emissions, long life. I love two strokes but hate their shortcomings; short life, emissions, etc. So I set about to fix all those problems. I have to compare it to a four stroke as installed in 95% of the engine applications for size, the four stroke head can't compare to the two stroke we know. It seals the crankcase off through the lower piston stem with stationary oil rings, but still uses the piston to pump/ supercharge the incoming flow. This is a necessity, a Detroit Diesel two stroke uses a separate supercharger so is complex and has shorter life, not to mention the huge long piston it uses for it's design. Modern automotive design is seeing less cylinders and boosted, this covers that area well, but is less complicated. Can use a turbocharger if needed, does not need expansion chambers. Reed intake, piston controlled transfers, poppet head exhausts.
_________________ 1974 Kawasaki H2B 750, 1981 Yamaha XV750 Cafe, 1986 Kawasaki KDX200, 2003 Honda XR100, 2004 SDG140. 2006 Ninja 500R Turbo intercooled fuel injected.
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