MAZDA F ENGINE

The 'F' engine family from Mazda is a straight-4 piston engine. This motor was found in the Mazda B-Series truck and 1984-2002 Mazda 626 families. These are entirely different engines than the Mazda B engine family.
There were four basic head types within the F range, the diesel SOHC 8-valve, the petrol SOHC 8-valve, petrol SOHC 12-valve, and the petrol DOHC 16-valve. These heads came attached to multiple variations of the different blocks and strokes. Only the petrol 8-valve and 12-valve shared the same gasket pattern.

Contents

MA

F6

F8

F8-DOHC

FE

FET

FE-DOHC

F2

F2T

R series

RF

R2

Later engines with 'F' nomenclature

FS

FP

MA

This engine is only a predecessor to the F series engines, in no other way related.
This 2.0L (1970cm³) was designated 'MA'. Bore was 80mm and stroke was 98mm. This SOHC engine with a 2 barrel carburettor produced 103hp (76kW) and 123lb/ft (167Nm). A more fuel-efficient 1 barrel version produced 90hp (66kW). Fuel injection was available in 81-82. Other capacities were available in some markets, such as the F/NA 1.6L.
Applications:

★ 1981-1982 Mazda Luce/Mazda Cosmo

★ 1975-1980 Mazda Luce/929

★ 1979-1982 Mazda Capella/626

★ 1977-1985 Mazda B2000

★ 1977-1985 Ford Courier

F6

The smallest of the second generation of F family engines was the F6, a destroked and debored version of the base FE 2.0. It replaces the F/NA 1.6 from the previous generation. It was an 8-valve SOHC engine with an 81mm bore and 77mm stroke, with a compression ratio of 8.6:1. Output was 73hp (53kW) @ 5500rpm and 89lb/ft (121Nm) @ 3500rpm.
Applications:

★ 1983-1987 Mazda Capella/626

F8

A destroked FE, the F8 had a capacity of 1.8 litres, and came in several configurations including a 12-valve head and fuel injection later in its life. It had a bore of 86mm and a stroke of 77mm, with a compression ratio of 8.6:1. Power output was 80hp (60kW) @ 5500rpm and 98lb/ft (133Nm) @ 2500 for the 8-valve SOHC carburetted versions.

Applications:

★ 1983-1991 Mazda Capella/626

F8-DOHC

The 'F8-DOHC' is a destroked version of the 'FE-DOHC' displacing 1789cc - 1.8L. It shares the common bore of 86mm with other F-blocks and has a shortened stroke of 77mm. It uses the same exhaust cam, but a different intake cam with less lift and a long, single-runner intake manifold. The 'F8' is usually identified by its unpainted cam cover. Output was 113hp (84kW) @ 6000rpm and 115lb/ft (156nM) @ 5000rpm. It is usually found in wagon variants.
Applications:

★ 1988-1996 Mazda Capella/626

FE

The 2.0 L (1998 cm³) 'FE' was very different with a square 86 mm bore and stroke. It was an 8-valve SOHC engine for front-wheel drive and rear wheel drive pickup use. Output was 90 hp (66 kW) for the 1 barrel carburetor version, 100 hp (74 kW) @ 5600rpm & 156Nm @ 3700rpm for the 2 barrel carburetor version, or 118 hp (88 kW) @ 5300rpm & 178Nm @ 3700rpm with fuel injection and higher compression (10:1 vs 8.6:1).

Applications:

★ 1983-1991 Mazda Capella/626

★ 1985-1987 Mazda B-Series

★ 1983-1990 Mazda E-series

★ 1981-1990 Mazda 929

FET

The 2.0 L (1998 cm³) Fuel Injected, turbocharged 'FET' version of the FE produced 135hp (101kW) @ 5250rpm and 175lb-ft (237Nm) @ 2800rpm. It was a variant of the 8-valve SOHC 'FE' Featuring a small turbocharger producing 7psi of boost, and no intercooler. As such it features the same 86mm bore and stroke of the FE. The Japanese variant of this engine was dubbed the ''Magnum Turbo''. Given that the peak power for the naturally aspirated, fuel injected FE is 118hp, the rated power for the FET is said to be conservative.
Applications:

★ 1986-1987 Mazda Capella/626

★ 1986-1987 Ford Telstar Turbo

★ 1986-1987 Mazda 929 coupe

FE-DOHC

Main articles: Mazda FE-DOHC engine

The 'FE-DOHC' was the DOHC variant of the FE. Commonly called the 'FE3' because of its head castings, it was used in some 626s from Europe, New Zealand and Japan; but not the U.S. or Australia. After the GD platform stopped production in 1992, FE-DOHCs continued production until the end of the GV wagon in 1997. The FE-DOHC was also produced under license by Kia for the 1995+ Kia Sportage.
The FE-DOHC shares some dimensions with the original FE, including the 86mm bore and stroke. The 'FE-DOHC' is usually identified by a gold cam cover, however this is not a guarantee. There were at least six different 'FE-DOHC' engines available with various compression ratios and camshafts. Sadly, due to a lack of information in non-destined markets, some believe that the FE-DOHC is fitted with forged internals, however this is not the case. In 10.0:1 compression, non-catalytic trim, the FE-DOHC produces 145hp (108kW) @ 6000rpm and 133lb/ft (182Nm) @ 4000rpm. The 9.2:1 compression, catalytic converter version produces 138hp.
Applications:

★ 1988-1997 Mazda Capella/626

★ 1995-2003 Kia Sportage

F2

The F2 is a stroked version of the FE, introduced for the 1988-1992 GD platform cars, it can also be found in the B2200 pickup. Although available as an 8-valve SOHC in the B2200, this car is most commonly a 12-valve SOHC, with an 86mm bore and 94mm stroke with an 8.6:1 compression ratio. It generates 120hp (82kW) @ 4700rpm and 130lb/ft (176nm).
Applications:

★ 1988-1992 Mazda 626

★ 1988-1992 Mazda MX-6

★ 1988-1992 Ford Probe

★ 1987-1999 Mazda B2200

F2T

The 'F2T' is a turbocharged version of the F2 equipped with an IHI-supplied RHB5 VJ11 turbocharger and an air-to-air intercooler. Internally the engine retains its 86mm bore and 94mm stroke, but has a lower compression ratio of 7.8:1. It produces 145hp (108kw) @ 4300rpm and 190lb/ft (257nm). Due to the increased torque output, Mazda were forced to increase the strength of the transmission for the F2T, producing the H-type, the strongest FWD gearbox Mazda produced at the time.
Applications:

★ Mazda 626

★ Mazda MX-6

★ Ford Probe

R series

The R series engines are diesel variants that are very closely related to the F series sharing the same bell housing patterns and other block fixtures and dimensions.

RF

A diesel variation of the FE which shares its 86mm bore and stroke. It was also available with a 'Pressure Wave' supercharger.
Applications:

★ 1988-1992 Mazda Capella/Mazda 626

★ 1983-1990 Mazda E-series

R2

A diesel variation of the F2 which shares its 86mm bore and 94mm stroke.
Applications:

★ 1987-1991 Mazda B-series

Later engines with 'F' nomenclature

FS

It should be noted that the FS engine is totally unrelated to the earlier F series engines with the exception of a similar name and capacity.
The 2.0L (1991 cm³) 'FS' was one of the last F-family engines. With an 83 mm bore and 92 mm stroke, it produced 130hp (97kW) and 135lb/ft (183nm). In 1998 the engine underwent several changes, most notably a distributorless ignition version known as the FS-DE. Japan also received a higher-performance version, known as the FS-ZE. A special version of the FS was produced in 2003 for the Mazdaspeed Protegé which was turbocharged, and generated 170hp (127kW) and 160lb/ft (217nm).
Applications:

★ 1993-2002 Mazda 626

★ 1993-1997 Mazda MX-6

★ 1999-2001 Mazda MPV (Japan)

★ 1999-2003 Mazda Capella

★ 2001-2003 Mazda Protegé

★ 2003 Mazdaspeed Protegé

★ 1993-1997 Ford Probe

FP

It should be noted that the FP engine is totally unrelated to the earlier F series engines with the exception of a similar name and capacity.
The 1.8 L (1839 cm³) 'FP' is a destroked version of the FS, with an 83mm bore and 85mm stroke. It produces 122hp (91kw) and 120lb/ft (163nm). This engine is often incorrectly called the 'F8', which is the earlier destroked engine based on the FE.
Applications:

★ 1992-1993 Eunos 500

★ 1997-2001 Mazda Capella

★ 1999-2000 Mazda Protegé (ES models only)