The Mitsubishi 2G1 engine is a water-cooled iron-block two-stroke twin-cylinder engine built by Mitsubishi Motors for the kei car class from 1968. They were first introduced in the first generation Minica360cc: Nippon 軽自動車 Memorial 1950-1975: p69, 2007. to replace (and to complement) the otherwise similar but air-cooled ME24 powerplant.2G10 engine-equipped Mitsubishi Minica 70 (1969) , Mitsubishi Motors Web Museum The difference of nomenclature compared to the ME24 is due to Mitsubishi's 1967 change of engine naming practice, 2G1 meaning it was in the first family of two-cylinder gasoline-powered engines. The "0" in "2G10" means that it was the first displacement version produced, with numbers after a dash (e.g. 2G10-5) then denoting the various subiterations.
The 2G10 engine was replaced by the 2G21 "Vulcan" engine, a four-stroke unit of identical displacement which first appeared in September 1972. The two-stroke 2G10 did continue to be produced as a low-cost alternative until new Kei car regulations took effect in January 1976, mainly for commercial vehicles.
2G10
Specifications Engine type Twin-cylinder two-stroke Displacement 359 cc Bore × stroke Fuel type Self mix oil and gasoline Peak power at 5500 rpm 2G10, Minica LA23 SDX at 6000 rpm 2G10-1, first "Red" at 7000 rpm 2G10-2, "Gold" at ? rpm 2G10-4, second "Red" at 6500 rpm 2G10-5, third "Red" (Minica 73, Minica Van) at 6000 rpm (Minicab W, 1972-197?)Automobile Guide Book 1973/1974, p. 206 Peak torque at 5000 rpm 2G10, Minica LA23 SDX at 5000 rpm 2G10-1 first "Red" at 6500 rpm 2G10-2 "Gold" at 5500 rpm 2G10-5 third "Red" (Minica 73, Minica Van) at 4000 rpm (Minicab W, 1972-197?)
Applications 1968-69 Mitsubishi Minica LA23 1969-76 Mitsubishi Minica A101/101V 1972-76 Mitsubishi Minicab W
See also List of Mitsubishi engines
References