Hesitant to post about this speculative engine. In effect, the induction and exhaust are upgraded with modern engine control systems. More of a ‘brass board’ prototype, I wish them well: A three cylinder version at 50hp (35 kW) would be very attractive. Then scaled to 100 and 150hp, a nice family: 3 cylinder - 120 degree power pulses for smoother operation and tolerable reliability if one cylinder fails. Separate oil crank case - avoids burning lubricant Forced induction - avoids butterfly losses and potentially handles altitude changes much better Direct fuel injection- critical for multi-fuel operation I like the architecture but there is a lot of work before production becomes real. Bob Wilson
Direct injection and updated lubrication systems would appear to be the key to emissions compliance. Evinrude showed some strong results when they adopted these technologies in their outboard motors. Wasn't enough to save them, but it did prove out a lot of the engineering investments.
