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Honda H engine | |
---|---|
Overview | |
Manufacturer | Honda |
Layout | |
Configuration | Naturally aspirated Inline-4 |
Displacement | 2.2–2.3 L; 131.6–137.9 cu in (2,157–2,259 cc) |
Cylinder bore | 87 mm (3.43 in) |
Piston stroke | 90.7 mm (3.57 in) 95 mm (3.74 in) |
Cylinder block material | Aluminum |
Cylinder head material | Aluminum |
Valvetrain | DOHC 4 valves x cyl. with VTEC |
Compression ratio | 9.8:1-11.0:1 |
RPM range | |
Max. engine speed | 6500-8700 |
Combustion | |
Fuel system | PGM-FI |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | 160–220 PS (118–162 kW; 158–217 hp) |
Torque output | 152–164 lb⋅ft (206–222 N⋅m) |
The Honda H engine was Honda's larger high-performance engine family from the 1990s and early 2000s. It is largely derived from the Honda F engine with which it shares many design features. Like Honda's other 4-cylinder families of the 1980s and 1990s, It has also enjoyed some success as a racing engine, forming the basis of Honda's touring car racing engines for many years, and being installed in lightweight chassis (such as the Honda CR-X) for use in drag racing. The F20B is a part of the F-series family of engines; it is basically a cast-iron sleeved down destroked version of the H22A. It was developed by Honda to be able to enter into the 2-liter class of international racing.
H-Series consisted of two different displacements; H22 2.2 L (2,157 cc) and H23 2.3 L (2,259 cc). Both versions were using the same block; different crankshafts and connecting rods were utilized to achieve displacement variation. [1]
The H22 debuted in the U.S. in 1993 as the H22A1 for use in the Honda Prelude VTEC. Since then, versions of the H22 would become the Prelude's [2] signature high-performance engine worldwide until the end of Prelude [2] production in 2001. In 1994, Honda of Europe used the H22A cylinder head and the H22A engine block as the Formula 3 engine which was an H22A engine destroked from 2.2 liters to 2.0 liters (F3-2000cc) to compete in the European F3 series. It was then used by Mugen Motorsports as the F20B(MF204B) from 1997-2001. In 1995-1997, Honda of Europe used the same H22A-based F3 engine in the British Touring Car Championship (BTCC) Honda Accord. Also, in 1996-1997 Honda of Japan used the same H22A-based F3 engine in the Japan Touring Car Championship (JTCC) Honda Accord and won the JTCC for both years. Honda of Europe hired Neil Brown Engineering of England to convert the H22A engine into an F3 engine which would be later used in BTCC and JTCC. The type S Prelude [2] has an engine rev cut of 9100rpm.
The H23 was an increased-stroke, non-VTEC version of the H22, used in Japan, North America, and Europe. It shared the same Fiber Reinforced Metal (FRM) cylinder wall liners with the H22.
Specifications
In 1998, Honda of Japan produced a rare DOHC VTEC version of the H23A engine for use in Japan only. It has been factory modified with an internal oil passage in the H23A block to operate the VTEC solenoid in the H22A head. It has the same horsepower rating as the H22A engine but a lower redline of 7200rpms because it has a longer stroke than the H22A. The H23A DOHC VTEC has 87 mm × 95 mm (3.43 in × 3.74 in) (bore and stroke) and the H22A DOHC VTEC has 87 mm × 90.7 mm (3.43 in × 3.57 in) (bore and stroke). It also lacked the oil squirters found on the H22A and H22Z VTEC engines, but there are provisions for the oil squirters to be installed, as the main oil galley feeding the squirters has been tapped, the holes for the bolts that hold the squirters at the bottom of each bore have been tapped. Installation of the squirters is possible but the actual squirters need to be bent to clear the larger stroke crank of the H23A VTEC engine. The H23A DOHC VTEC Engine is largest displacement in the H Series engines with a compression ratio of 10.6:1.
Below is a chart that consists all of the engines in the H Series.
Chassis | Engine Code | Deck Type | Power | Compression Ratio | Bore x Stroke |
---|---|---|---|---|---|
Accord CD6 SiR | H22A | Closed | 190 PS (140 kW; 187 hp) | 10.6:1 | 87 mm × 90.7 mm (3.43 in × 3.57 in) |
Accord CF2 SiR | |||||
Prelude BB1/BB4 SiR VTEC | 200 PS (147 kW; 197 hp) | ||||
Prelude BB6/BB8 SiR | Open | ||||
Prelude BB6 S-Spec | 220 PS (162 kW; 217 hp) | 11.0:1 | |||
Prelude BB6 Type S | |||||
Accord CL1 Euro R | |||||
Prelude BB1 VTi-R | H22A1 | Closed | 190 PS (140 kW; 187 hp) | 10.0:1 | |
Prelude BB1 SR-V | |||||
Prelude BB1 VTEC | |||||
Prelude BB1 2.2i VTEC | H22A2 | 185 PS (136 kW; 182 hp) | |||
Prelude BB1 | H22A3 | 190 PS (140 kW; 187 hp) | |||
Accord CD8 SiR | 10.6:1 | ||||
Prelude BB6 SE | H22A4 | Open | 198 PS (145 kW; 195 hp) | 10.0:1 | |
Prelude BB6 Base | 203 PS (149 kW; 200 hp) | ||||
Prelude BB6 VTi-R | |||||
Prelude BB6 ATTS | |||||
Prelude BB6 Type SH | |||||
Prelude BB6/BB8 2.2 VTi | H22A5 | 185 PS (136 kW; 182 hp) | |||
Prelude BB6 2.2 VTi-S | |||||
Accord CH1 Type R | H22A7 | 212 PS (156 kW; 209 hp) | 11.0:1 | ||
Prelude BB6/BB8 2.2 VTi | H22A8 | 200 PS (147 kW; 197 hp) | |||
Prelude BB6 2.2 VTi-S | |||||
Prelude BB6 VTi-R | H22Z1 | 212 PS (156 kW; 209 hp) | 10.0:1 | ||
Prelude BB6 ATTS | |||||
Prelude BB1 S | H23A | Closed | 160 PS (118 kW; 158 hp) | 9.8:1 | 87 mm × 95 mm (3.43 in × 3.74 in) |
Accord CH9 SiR (VTEC) | Open | 200 PS (147 kW; 197 hp) | |||
Prelude BB1 Si | H23A1 | Closed | 160 PS (118 kW; 158 hp) | ||
Prelude BB2 SE | |||||
Prelude BB2 SR | |||||
Prelude BB2 SRS | |||||
Prelude BB2 2.3i | H23A2 | ||||
Accord CC7 2.3i SR | H23A3 |
Engine | Rod Length | Rod Width | Main Bore | Pin Bore | Piston Volume | Wrist Pin Diam. | Main Bearing Width | Rod Bearing Width |
---|---|---|---|---|---|---|---|---|
H22A | 143 mm (5.6 in) | 23.75 mm (0.935 in) | 51 mm (2.0 in) | 21.97–21.98 mm (0.865–0.865 in) | −1.9 cc (−0.12 cu in) | 22 mm (0.87 in) | 19.9 mm (0.78 in) | 19.35 mm (0.762 in) |
H22A1 | −1.8 cc (−0.11 cu in) | |||||||
H22A2 | ||||||||
H22A3 | ||||||||
H22A4 | 143 mm (5.6 in) | 23.75 mm (0.935 in) | 51 mm (2.0 in) | 21.97–21.98 mm (0.865–0.865 in) | −1.8 cc (−0.11 cu in) | 22 mm (0.87 in) | 19.9 mm (0.78 in) | 19.35 mm (0.762 in) |
H22A5 | ||||||||
H22A7 | ||||||||
H22A8 | ||||||||
H22Z1 | ||||||||
H23A | 141.5 mm (5.57 in) | 23.75 mm (0.935 in) | 51 mm (2.0 in) | 21.97–21.98 mm (0.865–0.865 in) | +4.3 cc (0.26 cu in) | 22 mm (0.87 in) | 19.9 mm (0.78 in) | 19.35 mm (0.762 in) |
H23A1 | −9.9 cc (−0.60 cu in) | |||||||
H23A2 | ||||||||
H23A3 | ||||||||
H23A VTEC | 141 mm (5.6 in) | |||||||
Engine | Intake Valve Diam. | Exhaust Valve Diam. | Main Journal Diam. | Rod Journal Diam. |
---|---|---|---|---|
H22A | 35 mm (1.4 in) | 30 mm (1.2 in) | 50 mm (2.0 in) | 47.95 mm (1.888 in) |
H22A1 | ||||
H22A2 | ||||
H22A3 | ||||
H22A4 | 35 mm (1.4 in) | 30 mm (1.2 in) | 55 mm (2.2 in) (1997 only = 50 mm (2.0 in)) | 47.95 mm (1.888 in) |
H22A5 | ||||
H22A7 | ||||
H22A8 | ||||
H22Z1 | ||||
H23A | 35 mm (1.4 in) | 30 mm (1.2 in) | 55 mm (2.2 in) | 47.95 mm (1.888 in) |
H23A1 | 34 mm (1.3 in) | 29 mm (1.1 in) | 50 mm (2.0 in) | |
H23A2 | ||||
H23A3 | ||||
H23A VTEC | 55 mm (2.2 in) | |||
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