Mazda G engine

G54B

The 2.6 L Mazda G54B was actually a Mitsubishi engine. It displaces 2555 cc and was used in the B2600 pickup from 1986 to 1988, until Mazda developed their own suitable engine.

G6==

Mazda replaced the G54B with its own 2.6 L G6 engine which displaces 2606 cc. Bore and stroke are 92x98 mm. The G6 was produced until 1993 and made 121 hp (90 kW), 149 lb⋅ft (202 N⋅m) for North American models. The G6E which replaced it was used in other markets around the world.

Compression Ratio: 8.4

Valve train: 12V SOHC

Applications:

• 1989–1993 Mazda B2600i
• 1998–2006 Mazda B2600
• 1989–1996 Mazda MPV
• 2007-2014 Mazda BT-50

G5

The 2.5 L G5 was an evolution of the G6. It produces 102 hp at 4000 rpm.

Applications:

• 1995 Mazda B2500
• 1996-1999 Mazda MPV

GY

The GY is not at all related to the Mazda G-series four-cylinder engines and is listed in this article strictly by engine code association. GY is the Mazda engine code for a 2494 cc Ford Duratec V6 engine which, due to an OEM deal with Ford, was built by Mazda in Japan for limited use in the 1999-2001 Mazda MPV. This Duratec V6 engine was in turn based on the original Mazda KL 2495 cc from 1991. By the late 1990s (during the Mazda/Ford partnership) Ford executives had ordered Mazda to cease development of V6 engines and instead focus on a new range of four-cylinder engines for both companies' benefit, which would become the MZR/Duratec lineup of inline-four engines. The order to discontinue their own V6 development included the Mazda K engine, leaving Mazda the only option of employing later Ford V6s, which were considerably cheaper to manufacture.

Applications:

• 1999-2001 Mazda MPV (second generation)

References

References

1. (1990). "Quattroruote: Tutte le Auto del Mondo 1990". Editoriale Domus S.p.A.