Overview
The Mitsubishi 3B2 engine is a family of all-alloy three cylinder engines developed by Mitsubishi Motors, first produced in December 2005 at the company's Mizushima powertrain facility in Kurashiki, Okayama, for introduction in their 2006 Mitsubishi i kei car. All engines developed within this family have aluminum cylinder block and head, double overhead camshafts, four valves per cylinder, and MIVEC continuous variable valve timing.
The 3B20 was designed with the "rear midship" layout in mind but is not limited to that. The basic dimensions chosen reduced the powerplant's height, the cylinder block's structure was simplified, a timing chain was adopted, modularized components were used for the oil and water pumps, engine mounts, and fuel system. The aluminum construction and lightweight parts and materials in the manifolds helped reduce the weight of the engine by 20 percent compared with its iron-block 3G83 predecessor, while gains were also seen in torque, fuel economy and emissions. Bore pitch is 80 mm....
engine brand: mitsubishi
production years: 2006-2020
engine lifespan: ~180 000
features: DOHC
power: 64
torque: 94 – 100
fuel system: distributed injection
fuel type: petrol
euro standards: EURO 4/5
timing drive: chain
hydraulic lifters: no
phase regulator: MIVEC
recommended engine oil: 5W-30
engine oil capacity: 3.4
displacement: 659
compression ratio: 8.8 – 9.0
turbocharging: MHI TD02M2
weight: 69 (without attachments)
cylinder bore: 65.4
piston stroke: 65.4
cylinder block: aluminum R3
block head: aluminum 12v