Mazda MZR engine
MZR is the brand name of a generation of Inline-four engines engineered and built by the Mazda Motor Corporation from 2001 to the present. MZR stands for "MaZda Responsive". The MZR generation includes gasoline and diesel powered engines ranging in displacements from 1.3L to 2.5L.
| Mazda MZR engine | |
|---|---|
Turbocharged MZR engine in a 2006 Mazdaspeed6 | |
| Overview | |
| Manufacturer | Mazda |
| Also called | |
| Production | 2001–present |
| Layout | |
| Configuration | Inline-four |
| Displacement | 1,998 cc (121.9 cu in) |
| Cylinder bore | 90 mm (3.5 in) |
| Piston stroke | 78.5 mm (3.09 in) |
| Cylinder block material | Aluminum |
| Cylinder head material | Aluminum |
| Valvetrain | DOHC |
| Combustion | |
| Fuel type | Gasoline Diesel |
| Chronology | |
| Predecessor | |
| Successor | SkyActiv |
All gasoline-powered MZR engines feature an all-aluminum block construction with iron cylinder liners. The diesel MZR-CD engines use a cast-iron block (virtually identical to the Mazda F engine) and an aluminum cylinder head.
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