I don't know, but, I do see an extra connecting rod plus the connecting=20 link per cylinder that must be accelerated and decelerated for every=20 crank rotation. That's a lot of mass (weight) for F=3DMA, which means=20 power wasted. Also there are many more bearing surface where rotation is=20 occurring and that's more wasted power. Plus difficult to locate the=20 sparkplug for good flame spread and air/fuel/exhaust flow looks poor,=20 when thinking "Hemi" smooth flow. :) On 8/24/2011 10:50 AM, RussellMc wrote: > Radically new engine designs almost always aren't. > > Unusual& highly promising engine implementations almost invariably fail = to > deliver. > > Even the most plausible designs almost always meet the above two "rules" > > All that said, this one *LOOKS* promising and new. > TBD. > > One stroke multi fuel, pistons have no sideforces, conrods slide straight= , > smaller engine size and weight per swept volume than conventional design= s, > aiming at about 5% energy efficiency gain over conventional engines. > > Spokesman on video below sounded very cool calm and collected,& *seeme= d* > to know his stuff. Whther it would actuually work as well as they claim I > cannot tell. Murphy says no. > > http://www.monolithengines.com/ > > Video > > http://www.engineeringtv.com/video/Two-and-Four-Cylinder-Single-St > > > > Russell > =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .