Honda H engine
Encyclopedia
The Honda H engine was Honda
's 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 80s and 90s, it was replaced by the Honda K engine
. 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 CRX) for use in drag racing
. The F20B, though technically coded part of the F-series family of engines, was basically a destroked version of the H22A. It was developed for Honda to be able to enter into the 2-liter class in racing.
H-Series was consisted of 2 different displacements; H22 (2.2L) and H23 (2.3L). Both versions were using the same short block; different cranckshafts and connecting rods were utilized to achieve displacement variation.
VTEC
. Since then, versions of the H22 would become the Prelude's signature high-performance engine worldwide until the end of Prelude production in 2001. Variations were also used in a few Accords
in Japan and Europe. In 1994, Honda of Europe used the H22A cylinder head and the H22A engine block as Formula 3 engine which was destroke H22A engine from 2.2 liters to 2.0 liters(F3-2000cc)to compete in the European F3 series then it was used by Mugen Motorsports as F20B 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 to F3 engine which would be later used in BTCC and JTCC.
(www.nbe.co.uk/super_touring.html)
Specifications"
H22A
H22A1
H22A2
H22A3
H22A4
H22A5
H22A7
H22A8
H22Z1
Specifications
H23A
H23A1
H23A2
H23A3
H23A DOHC VTEC
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. Having the same horsepower rating as the H22A engine but it has a lower redline because it has a longer stroke than H22A. H23A DOHC VTEC has 87mm x 95mm (bore and stroke)and the H22A DOHC VTEC has 87mm x 90.7mm (bore and stroke). 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 / F Series.
H Series Motor Specifications Chart 1
H Series Motor Specifications Chart 2
H Series Motor Specifications Chart 3
Honda
is a Japanese public multinational corporation primarily known as a manufacturer of automobiles and motorcycles.Honda has been the world's largest motorcycle manufacturer since 1959, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than...
's high-performance engine family from the 1990s and early 2000s. It is largely derived from the Honda F engine
Honda F engine
The Honda F-Series engine was Honda's "big block" SOHC inline four, though lower production DOHC versions of the F-series were built. It features an aluminum open deck cast iron sleeved block and aluminum/magnesium cylinder head...
with which it shares many design features. Like Honda's other 4-cylinder families of the 80s and 90s, it was replaced by the Honda K engine
Honda K engine
The Honda K series engine is a four-cylinder four-stroke engine introduced in 2001. The K series engines are equipped with DOHC valvetrains and use roller rockers to reduce friction. The engines use a coil-on-plug, distributorless ignition system with a coil for each spark plug...
. It has also enjoyed some success as a racing engine, forming the basis of Honda's Touring car racing
Touring car racing
Touring car racing is a general term for a number of distinct auto racing competitions in heavily-modified street cars. It is notably popular in Argentina, Australia, Brazil, Germany, Japan, Scandinavia and Britain.-Characteristics of a touring car:...
engines for many years, and being installed in lightweight chassis (such as the Honda CRX) for use in drag racing
Drag racing
Drag racing is a competition in which specially prepared automobiles or motorcycles compete two at a time to be the first to cross a set finish line, from a standing start, in a straight line, over a measured distance, most commonly a ¼-mile straight track....
. The F20B, though technically coded part of the F-series family of engines, was basically a destroked version of the H22A. It was developed for Honda to be able to enter into the 2-liter class in racing.
H-Series was consisted of 2 different displacements; H22 (2.2L) and H23 (2.3L). Both versions were using the same short block; different cranckshafts and connecting rods were utilized to achieve displacement variation.
H22
The H22 debuted in the U.S. in 1993 as the H22A1 for use in the Honda PreludeHonda Prelude
The Honda Prelude was a sports coupe produced by Japanese automaker Honda from 1978 until 2001. It replaced the Honda S800, a front-engined, front wheel drive sports car...
VTEC
VTEC
VTEC is a valvetrain system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine. The VTEC system uses two camshaft profiles and electronically selects between the profiles. It was invented by Honda R&D engineer Ikuo Kajitani, and was the first system...
. Since then, versions of the H22 would become the Prelude's signature high-performance engine worldwide until the end of Prelude production in 2001. Variations were also used in a few Accords
Honda Accord
The Honda Accord is a series of compact, mid-size and full-size automobiles manufactured by Honda since 1976, and sold in a majority of automotive markets throughout the world....
in Japan and Europe. In 1994, Honda of Europe used the H22A cylinder head and the H22A engine block as Formula 3 engine which was destroke H22A engine from 2.2 liters to 2.0 liters(F3-2000cc)to compete in the European F3 series then it was used by Mugen Motorsports as F20B 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 to F3 engine which would be later used in BTCC and JTCC.
(www.nbe.co.uk/super_touring.html)
Specifications"
- Bore × Stroke: 87 by 90.7 mm (3.4 by 3.6 in)
- Displacement: 2157 cc
- Valve Configuration: DOHC, 16 valves, VTECVTECVTEC is a valvetrain system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine. The VTEC system uses two camshaft profiles and electronically selects between the profiles. It was invented by Honda R&D engineer Ikuo Kajitani, and was the first system...
- Type: In-line 4 cylinder, aluminum block and head
- Compression ratio: 10.0-10.6:1 (North AmericaNorth AmericaNorth America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
); 10.0-11.0:1 (EuropeEuropeEurope is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
); 10.6-11.0:1 (JapanJapanJapan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
) - Max power: 185-220 hp
- Redline: 7200/7600 rpm
- Rev Cut: 7400/8000 rpm
- Engine Control System: Honda Systems PGM-FI with port fuel injection
- Valve Gear: Belt-driven dual overhead cams, 4 valves per cylinder, variable timing and lift
- 92-96 versions use closed-deck blocks but FRM liners were used in 94-96 while the 97-01 versions used open-deck blocks with FRM liners.
H22A
- Found in the Japanese 4th gen Prelude Si VTEC (2WS BB4 & 4WS BB1). It produces 200 PS @ 6,800 rpm & 161.5 ft·lbf (219 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Japanese 5th gen Prelude SiR (2WS BB6 & 4WS BB8). It produces 200 PS @ 6,800 rpm & 161 ft·lbf (218.3 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Japanese 5th gen Prelude Type-S and SiR S-Spec (BB6). It produces 220 PS @ 7,200 rpm & 163 ft·lbf (221 N·m) @ 6,500 rpm and comes with a red valvecover.
- Found in the Japanese 6th gen Accord/Torneo Euro-R (CL1). It produces 220 PS @ 7,200 rpm & 163 ft·lbf (221 N·m) @ 6,500 rpm and comes with a red valvecover.
- Found in the Japanese 5th gen Accord SiR Sedan (CD6). It produces 190 PS @ 6,800 rpm & 152 ft·lbf (206.1 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Japanese 5th gen Accord SiR Coupe (CD7). It produces 190 PS @ 6,800 rpm & 152 ft·lbf (206.1 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Japanese 5th gen Accord SiR Wagon (CF2). It produces 190 PS @ 6,800 rpm & 152 ft·lbf (206.1 N·m) @ 5,500 rpm and comes with a black valvecover.
H22A1
- Found in the American 4th gen Prelude VTEC (BB1). It produces 190 PS @ 6,800 rpm & 158 ft·lbf (214.2 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Canadian 4th gen Prelude SR-V (BB1). It produces 190 PS @ 6,800 rpm & 158 ft·lbf (214.2 N·m) @ 5,500 rpm and comes with a black valvecover.
- Found in the Australian 4th gen VTi-R (BB1). It produces 190 PS @ 6,800 rpm & 158 ft·lbf (214.2 N·m) @ 5,500 rpm and comes with a black valvecover.
H22A2
- Found in the European 4th gen Prelude 2.2i VTEC (BB1). It produces 185 PS and comes with a black valvecover.
H22A3
- Found in the 1996 VTEC model (BB1) in various countries around the world denoted with regional code KU. It comes with a black valvecover.
H22A4
- Found in the American 5th gen Prelude Base and Type-SH (BB6). It produces 200 PS @ 7,000 rpm & 156 ft·lbf (211.5 N·m) @ 5,250 rpm and comes with a black valvecover.
- Found in the Canadian 5th gen Prelude Base, Type-SH, and SE (BB6). It produces 200 PS @ 7,000 rpm & 156 ft·lbf (211.5 N·m) @ 5,250 rpm and comes with a black valvecover.
- Found in the Australian 1997-1998 Prelude VTi-R and VTi-R ATTS (BB6). It produces 200 PS @ 7,000 rpm & 156 ft·lbf (211.5 N·m) @ 5,250 rpm and comes with a black valvecover.
H22A5
- Found in the European 1997-1998 Prelude 2.2VTi/VTi-S (2WS BB6 & 4WS BB8). It produces 185 PS and comes with a black valvecover.
H22A7
- Found in the European 1998-2002 Accord Type-R (CH1). It produces 212 PS and comes with a red valvecover.
H22A8
- Found in the European 1999-2001 Prelude 2.2VTi/VTi-S (2WS BB6 & 4WS BB8). It produces 200 PS @ 7,100 rpm & 156 ft·lbf (211.5 N·m) @ 5,250 rpm and comes with a red valvecover.
H22Z1
- Found in the Australian 1999-2001 VTi-R and VTi-R ATTS (BB6). It is thought to be identical to the H22A4, however, there is speculation that power was increased from 200 PS to 203 PS. It comes with a Red valvecover.
H23
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
- Bore × Stroke: 87 by 95 mm (3.4 by 3.7 in)
- Displacement: 2258 cc
- Valve Configuration: DOHC, 16 valves
- Type: In-line 4 cylinder, aluminum block and head
- Compression ratio: 9.8:1
- Max power: 160 hp
- Max torque: 156 ft·lbf (211.5 N·m)
- Redline: 7500rpm
- Engine Control System: Honda Systems PGM-FI with port fuel injection
- Valve Gear: belt-driven dual overhead cams, 4 valves per cylinder
H23A
- Found in the Japanese 1992-1996 Ascot Innova 2.3Si-Z (2WS CC4 & 4WS CC5). It produces 165 PS & 156 ft·lbf (211.5 N·m) and comes with a "black top".
H23A1
- Found in the American 4th gen Prelude Si (BB2). It produces 162 PS & 156 ft·lbf (211.5 N·m) and comes with a "black or red top".
- Found in the American 1995 Prelude SE (BB2). It produces 162 PS & 156 ft·lbf (211.5 N·m) and comes with a "black top".
- Found in the Canadian 4th gen Prelude SR (BB2). It produces 162 PS & 156 ft·lbf (211.5 N·m) and comes with a "black top".
- Found in the Australian 4th gen Prelude Si (BB2). It produces 160 PS & 156 ft·lbf (211.5 N·m) and comes with a "black or red top".
- Found in the Australian 1991-1993 Prelude SRS (BB2). It produces 160 PS & 156 ft·lbf (211.5 N·m) and comes with a "black top".
H23A2
- Found in the European 4th gen Prelude 2.3i (BB2). It produces 160 PS & 154 ft·lbf (208.8 N·m) and comes with a "black top".
H23A3
- Found in the European 1993-1995 Accord 2.3i SR (CC7). It produces 158 PS & 154 ft·lbf (208.8 N·m) and comes with a "black top".
- Found in the European 1992-1996 Rover 623 SLi, GSi, and iS. It produces 158 PS & 154 ft·lbf (208.8 N·m) and comes with a "black top".
H23A DOHC VTEC
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. Having the same horsepower rating as the H22A engine but it has a lower redline because it has a longer stroke than H22A. H23A DOHC VTEC has 87mm x 95mm (bore and stroke)and the H22A DOHC VTEC has 87mm x 90.7mm (bore and stroke). The H23A DOHC VTEC Engine is largest displacement in the H Series engines with a compression ratio of 10.6:1.
- Found in the Japanese 1998-2002 Accord Wagon SiR (CH9). It produces 200 PS & 163 ft·lbf (221 N·m) and comes with a "blue top".
- Found in the Japanese 1998-2002 Accord Wagon AWD (CL2). It produces 200 PS & 163 ft·lbf (221 N·m) and comes with a "blue top".
Below is a chart that consists all of the engines in the H / F Series.
H Series Motor Specifications Chart 1
| Engine | Type | Block Bore MM / Inch | Stroke | Power | Comp. Height | Deck Height | Head CC |
|---|---|---|---|---|---|---|---|
| H22A | Closed Deck | 87mm/3.425 | 90.7mm/3.570 | 200 PS (147 kW; 197 hp) @ 6,800 rpm & 161 ft·lbf (218 N·m) @ 5,500 rpm | 31.0mm/1.221 | 219.5mm/8.643 | 53.8cc |
| H22A1 | Closed Deck | 87mm/3.425 | 90.7mm/3.570 | 190 PS (140 kW; 187 hp) @ 6,800 rpm & 158 ft·lbf (214 N·m) @ 5,500 rpm | 31.0mm/1.221 | 219.5mm/8.643 | 53.8cc |
| H22A2 | 185 PS (136 kW; 182 hp) | ||||||
| H22A3 | |||||||
| H22A4 | Open Deck | 87mm/3.425 | 90.7mm/3.570 | 200 PS (147 kW; 197 hp) @ 7,000 rpm & 156 ft·lbf (212 N·m) @ 5,250 rpm | 31.0mm/1.221 | 219.5mm/8.643 | 53.8cc |
| H22A5 | 185 PS (136 kW; 182 hp) | ||||||
| H22A7 | 212 PS (156 kW; 209 hp) | ||||||
| H22A8 | 200 PS (147 kW; 197 hp) @ 7,100 rpm & 156 ft·lbf (212 N·m) @ 5,250 rpm | ||||||
| H22Z1 | 203 PS (149 kW; 200 hp) | ||||||
| H23A | Open Deck | 87mm/3.425 | 95mm/3.740 | 165 PS (121 kW; 163 hp) & 156 ft·lbf (212 N·m) | 30.5mm/1.203 | 219.5mm/8.643 | 50.0cc |
| H23A1 | Closed Deck | 87mm/3.425 | 95mm/3.740 | 162 PS (119 kW; 160 hp) & 156 ft·lbf (212 N·m) | 30.5mm/1.203 | 219.5mm/8.643 | 50.0cc |
| H23A2 | 160 PS (118 kW; 158 hp) & 154 ft·lbf (209 N·m) | ||||||
| H23A3 | 158 PS (116 kW; 156 hp) & 154 ft·lbf (209 N·m) | ||||||
| H23A DOHC VTEC | 87MM/3.425 | 95MM/3.740 | 200 PS (147 kW; 197 hp) & 163 ft·lbf (221 N·m) | ||||
H Series Motor Specifications Chart 2
| Engine | Rod Length | Rod Width | Main Bore | Pin Bore | Piston Volume | Wrist Pin Diam. | Main Bearing Width | Rod Bearing Width |
|---|---|---|---|---|---|---|---|---|
| H22A | 143.0mm/5.633 | 23.75mm/.935 | 51.00mm/2.008 | 21.97-21.98mm/.8649-.8654 | -1.9 cc | 22.0mm/.866 | 19.9mm/.784 | 19.35mm/.762 |
| H22A1 | 143.0mm/5.633 | 23.75mm/.935 | 51.00mm/2.008 | 21.97-21.98mm/.8649-.8654 | -1.8 cc | 22.0mm/.866 | 19.9mm/.784 | 19.35mm/.762 |
| H22A2 | ||||||||
| H22A3 | ||||||||
| H22A4 | 143.0mm/5.633 | 23.75mm/.935 | 51.00mm/2.008 | 21.97-21.98mm/.8649-.8654 | -1.8 cc | 22.0mm/.866 | 19.9mm/.784 | 19.35mm/.762 |
| H22A5 | ||||||||
| H22A7 | ||||||||
| H22A8 | ||||||||
| H22Z1 | ||||||||
| H23A | 141.5mm/5.572 | 23.75mm/.935 | 51.00mm/2.008 | 21.97-21.98mm/.8649-.8654 | +4.3 cc | 22.0mm/.866 | 19.9mm/.784 | 19.35mm/.762 |
| H23A1 | 141.5mm/5.572 | 23.75mm/.935 | 51.00mm/2.008 | 21.97-21.98mm/.8649-.8654 | -9.9 cc | 22.0mm/.866 | 19.9mm/.784 | 19.35mm/.762 |
| H23A2 | ||||||||
| H23A3 | ||||||||
| H23A VTEC | ||||||||
H Series Motor Specifications Chart 3
| Engine | Intake Valve Diam. | Exhaust Valve Diam. | Main Journal Diam. | Rod Journal Diam. |
|---|---|---|---|---|
| H22A | 35mm/1.38 | 30mm/1.18 | 50mm | 47.95mm/1.888 |
| H22A1 | 35mm/1.38 | 30mm/1.18 | 50mm | 47.95mm/1.888 |
| H22A2 | ||||
| H22A3 | ||||
| H22A4 | 35mm/1.38 | 30mm/1.18 | 55mm (1997 only = 50mm) | 47.95mm/1.888 |
| H22A5 | ||||
| H22A7 | ||||
| H22A8 | ||||
| H22Z1 | ||||
| H23A | 35mm/1.38 | 30mm/1.18 | 55mm | 47.95mm/1.888 |
| H23A1 | 34mm/1.34 | 29mm/1.14 | 50mm | 47.95mm/1.888 |
| H23A2 | ||||
| H23A3 | ||||
| H23A VTEC | ||||