The Mazda J-family are a range of 60-degree V6 engines featuring a cast-iron cylinder block and alloy heads with belt-driven DOHC or SOHC. It is Mazda's only cast-iron gasoline V6. These engines are found in the Mazda H platform-based Mazda 929, Efini MS-9, and Mazda Luce; as well as the L platform Mazda MPV and S platform Mazda Bongo. It was built at the Miyoshi Plant in Miyoshi, Hiroshima, Japan.
| Mazda J engine | |
|---|---|
 Mazda 18 Valve V6 3.0 L Engine | |
| Overview | |
| Manufacturer | Mazda |
| Layout | |
| Configuration | 60° V6 |
| Displacement | 3.0 L (2,954 cc) |
| Cylinder block material | Cast-iron |
| Cylinder head material | Aluminum Alloy |
| Valvetrain | DOHC or SOHC 18- or 24-valve |
| Combustion | |
| Turbocharger | Only in JFT |
| Fuel type | Gasoline |
| Cooling system | Water cooled |
| Output | |
| Power output | 150–203 hp (112–151 kW; 152–206 PS) |
| Torque output | 165 lb⋅ft (224 N⋅m) |
JF
edit- 2.0 L JF - SOHC 12-valve longitudinally mounted V6.
Applications:
- 1986-1989 Mazda 929
- 1986-1989 Mazda Luce (Japan)
JFT
edit- 2.0 L JFT - a turbocharged variant of the JF engine.
JE
editThe JE is a 3.0 L (2,954 cc) SOHC 18 valve V6 used in the 1989-1998 Mazda MPV and 1988-1991 Mazda 929, and produced 150 hp (112 kW; 152 PS) and 165 lb⋅ft (224 N⋅m) of torque. A JE-ZE DOHC variant was in the 1990-1995 Mazda 929 S, producing 203 hp (151 kW; 206 PS).
Applications:
- 1989-1998 Mazda MPV
- 1986-1989 Mazda 929
- 1986-1989 Mazda Luce (Japan)
- 1990-1994 Mazda 929
- 1991-1993 Efini MS-9
- 1992-1997 Kia Potentia (South Korea)
J5
editThe 2.5 L J5-DE is a DOHC motor producing 160 PS (118 kW; 158 hp). When used by Kia in South Korea, the J5 engine claimed 175 PS (129 kW; 173 hp) at 6,000 rpm.
Applications:
- 1990-1994 Mazda 929
- 1991-1993 Efini MS-9
- Mazda Bongo
- 1997-2002 Kia New Potentia (South Korea)