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The Mitsubishi 3G8 engine is a range of three-cylinder powerplant from Mitsubishi Motors, introduced in the fifth generation of their Mitsubishi Minica kei car.In common with other contemporary engines in the class, it could be specified with many advanced technologies despite its diminutive size, including multi-valve cylinder heads and double overhead camshafts.
Mitsubishi's smallest powerplants, most commonly found in their earliest models in the 1960s: 1955-1962 — ME7/15/18 — This was Mitsubishi's first air-cooled OHV engine over one liter's displacement. In 1955, the 1276 cc ME7 was developed for the 1.5-tonne (3,310 lb) Mitsubishi TM7.
According to Mitsubishi, the new cylinder dimensions contribute to a free-revving character (max power at 6500 rpm), linear power delivery and wide torque curve. Mitsubishi used a timing chain instead of a belt for better reliability and iridium spark plugs to lower emissions and to help extend major service intervals for lower cost of ownership.
The JH4 was an F-head engine based on the Willys Hurricane engine and its predecessor Willys Go-Devil sidevalve four, and was used to power early Mitsubishi Jeeps as well as Mitsubishi Fuso trucks and buses. It was of 2.2 L (2,199 cc), had 69 HP and formed the basis for the KE31, a diesel engine of the same dimensions.
The Mitsubishi 4G9 engine is a series of straight-4 automobile engines produced by Mitsubishi Motors. All are 16-valve, and use both single- and double- overhead camshaft heads. Some feature MIVEC variable valve timing , and it was the first modern gasoline direct injection engine upon its introduction in August 1996.
It was installed with two valves per cylinder, and used Mitsubishi's ECI-Multi multiple port fuel injection fuel delivery system. The compression ratio was 8.9:1. An earlier version, with single-point fuel injection, only had 105 PS (77 kW; 104 hp) at 5,000 rpm and 16.1 kg⋅m (158 N⋅m; 116 lb⋅ft) at 4,000 rpm.