Pinnacle 4-stroke opposed-piston SI engine shows fuel economy improvements of between 30-60% at light loads, 12-30% at medium loads over conventional
Green Car Congress
APRIL 24, 2012
Comparison of ISFC (@42.9 The results represent a light-load indicated efficiency improvement of 15-30% (up to 40.9%). For a comparison engine, Pinnacle used a 200 cc, conventional two-valve, air-cooled, carbureted model. MJ/kg) (4000 RPM) between 250cc Pinnacle and 200cc poppet valve engine. Source: Pinnacle. Click to enlarge.
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