The Honda K-series engine is a line of four-cylinder four-stroke car engine introduced in 2001. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction. The engines use a coil-on-plug, distributorless ignition system with a coil for each spark plug. This system forgoes the use of a conventional distributor-based ignition timing system in favor of a computer-controlled system that allows the ECU to control ignition timings based on various sensor inputs. The cylinders have cast iron sleeves similar to the B- and F-series engines, as opposed to the FRM cylinders found in the H- and newer F-series engines found only in the Honda S2000.
Similar to B series, the K-series car engines have two short blocks with the same design; the only difference between them being the deck height. K20 uses the short block with a deck height of 212 mm (8.3 in) where K23 and K24 block has a deck height of 231.5 mm (9.1 in). [1]
Two versions of the Honda i-VTEC system can be found on a K-series engine, and both versions can come with variable timing control (VTC) on the intake cam. The VTEC system on engines like the K20A3 only operate on the intake cam; at low rpm only one intake valve is fully opened, the other opening just slightly to create a swirl effect in the combustion chamber for improved fuel atomization. At high engine speeds, both intake valves open fully to improve engine breathing. In engines such as the K20A2 found in the Acura RSX Type-S, the VTEC system operates on both the intake and exhaust valves, allowing both to benefit from multiple cam profiles. A modified K20C engine is used in motorsport, as the Sports Car Club of America Formula 3 and 4 series that run in North America both use a K20C engine, with the Formula 4 engine not having a turbocharger. These are gaining a following in the import scene, but also among hot rodders and kit car enthusiasts, because they can be put in longitudinal rear wheel drive layouts.
Another significant difference between K-series engines is the alignment of the crankshaft to the center line of the bore. The K20C1 engine block has an offset alignment. [2] Engines that do not have their crank shaft aligned to the bore are known as Desaxe engines. On the K20C1 engine this allows the power stroke to have more leverage and less thrust waste on sidewalls.
Honda K20A (i-VTEC) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2001–2011 |
Layout | |
Configuration | I4 |
Displacement | 2.0 L; 121.9 cu in (1,998 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 86 mm (3.386 in) |
Cylinder head material | NSH 14 |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC on some models |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | Fuel injection |
Management | ECU |
Fuel type | Petrol |
Cooling system |
|
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Dimensions | |
Dry weight | 403 pounds (183 kg) (with gearbox), 275 pounds (125 kg) (without gearbox) |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K20A (High Performance) | 2001–2006 Honda Civic Type R (JDM) | 11.5:1 | 212 hp (158 kW) @ 8000 RPM | 149 lb⋅ft (202 N⋅m) @ 7000 RPM | 8400 RPM | 6000 RPM | PRC | |
2001–2006 Honda Integra Type R (JDM) | 11.5:1 | 217 hp (162 kW) @ 8000 RPM | 152 lb⋅ft (206 N⋅m) @ 7000 RPM | 8400 RPM | 8600 RPM | 6000 RPM | PRC | |
2002–2008 Honda Accord Euro R (JDM) | 11.5:1 | 217 hp (162 kW) @ 8000 RPM | 152 lb⋅ft (206 N⋅m) @ 6000 RPM | 8400 RPM | 6000 RPM | RBC | ||
2007–2011 Honda Civic Type R (JDM) | 11.7:1 | 221 hp (165 kW) @ 8000 RPM | 159 lb⋅ft (215 N⋅m) @ 6100 RPM | 8400 RPM | 8600 RPM | 5800 RPM | RRC | |
K20A (Eco) | 2000–2006 Honda Stream (JDM) (RN3, FWD) [3] | 9.7:1 | 154 hp (115 kW) @ 6500 RPM | 139 lb⋅ft (188 N⋅m) @ 4000 RPM | 6800 RPM | PNC | ||
2000–2006 Honda Stream (JDM) (RN4, AWD) | 9.8:1 | 156 hp (116 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | 7000 | PNC | ||
2001–2004 Honda CR-V (JDM) | 9.8:1 | 150 hp (112 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | PNA | |||
2001–2006 Honda Integra Type S (JDM) [4] | 9.8:1 | 158 hp (118 kW) @ 6500 RPM | 141 lb⋅ft (191 N⋅m) @ 4000 RPM | 6800 RPM | PNC | |||
2001–2005 Honda Stepwgn (JDM) [5] | 9.8:1 | 158 hp (118 kW) @ 6500 RPM | 141 lb⋅ft (191 N⋅m) @ 4000 RPM | 6800 RPM | PNC | |||
2001–2005 Honda Stepwgn Spada (JDM) [6] | 9.7:1 | 158 hp (118 kW) @ 6500 RPM | 141 lb⋅ft (191 N⋅m) @ 4000 RPM | 6800 RPM | PNC | |||
2005–2009 Honda Stepwgn (JDM) [7] | 9.6:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | RTA | |||
2002–2008 Honda Accord (JDM) (CL7-CM1, FWD) [8] | 9.8:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | RAA | |||
2002–2008 Honda Accord (JDM) (CL8, AWD) [8] | 9.8:1 | 150 hp (112 kW) @ 6000 RPM | 137 lb⋅ft (186 N⋅m) @ 4500 RPM | 6800 RPM | RAA | |||
2004–2009 Honda Edix (JDM) [9] | 9.7:1 | 154 hp (115 kW) @ 6500 RPM | 139 lb⋅ft (188 N⋅m) @ 4000 RPM | 6800 RPM | PNC | |||
2005–2010 Honda Civic (JDM) [10] | 9.6:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | RTB | |||
K20A1 | 2001–2006 Honda Stream (RN3, FWD) | 9.7:1 | 156 hp (116 kW) @ 6500 RPM | 139 lb⋅ft (188 N⋅m) @ 4000 RPM | 6800 RPM | PNA | ||
2001–2006 Honda Stream (RN4, AWD) | 9.8:1 | 158 hp (118 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | PNC | |||
K20A2 | 2001–2006 Honda Civic Type R (EDM) | 11.0:1 | 200 hp (150 kW) @ 7400 RPM | 139 lb⋅ft (188 N⋅m) @ 5900 RPM | 7900 RPM | 8250 RPM | 5800 RPM | PRB |
2002–2004 Acura RSX Type S | 11.0:1 | 200 hp (149 kW) @ 7400 RPM | 142 lb⋅ft (193 N⋅m) @ 6000 RPM | 7900 RPM | 8250 RPM | 5800 RPM | PRB | |
2002–2004 Honda Integra Type R (AUDM/NZDM) | 11.0:1 | 200 hp (149 kW) @ 7400 RPM | 142 lb⋅ft (193 N⋅m) @ 6000 RPM | 7800 RPM | 8100 RPM | 5800 RPM | ||
K20A3 | 2002–2006 Acura RSX | 9.8:1 | 160 hp (119 kW) @ 6500 RPM | 142 lb⋅ft (193 N⋅m) @ 4000 RPM | 6800 RPM | 7000 RPM | 2300 RPM [11] | PNC |
2002–2005 Honda Civic | 9.8:1 | 160 hp (119 kW) @ 6500 RPM | 141 lb⋅ft (191 N⋅m) @ 4000 RPM | 6800 RPM | 7000 RPM | 2300 RPM | PRB | |
2002–2005 Honda Civic Si USDM | 9.8:1 | 160 hp (119 kW) @ 6500 RPM | 132 lb⋅ft (179 N⋅m) @ 4000 RPM | 6800 RPM | 7000 RPM | 2300 RPM | PRB | |
2002–2005 Honda Civic Type S EDM | 9.8:1 | 160 hp (119 kW) @ 6500 RPM | 132 lb⋅ft (179 N⋅m) @ 4000 RPM | 6800 RPM | 7100 RPM | 2200 RPM | PRB | |
2003–2006 Honda Civic 2.0 i-VTEC (SEA) | 9.8:1 | 155 hp (116 kW) @ 6500 RPM | 131 lb⋅ft (177 N⋅m) @ 5000 RPM | 6800 RPM | 7000 RPM | PRB | ||
K20A4 | 2002–2006 Honda CR-V | 9.8:1 | 156 hp (116 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | PNA | ||
K20A6 | 2003–2006 Honda Accord (EDM) | 9.8:1 | 155 hp (116 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | 2500 RPM | RAA | |
2003–2006 Honda Accord (ADM) | 9.8:1 | 155 hp (116 kW) @ 6500 RPM | 140 lb⋅ft (190 N⋅m) @ 4000 RPM | 6800 RPM | 2500 RPM | RAA | ||
K20A7 | 2003–2007 Honda Accord (SEA) | 9.8:1 | 150 hp (112 kW) @ 6000 RPM | 137 lb⋅ft (186 N⋅m) @ 4500 RPM | 6800 RPM | RAA | ||
K20A9 | 2004-2007 Honda FR-V (EDM) | 9.8:1 | 150 hp (112 kW) @ 6500 RPM | 142 lb⋅ft (192 N⋅m) @ 4000 RPM | 6800 RPM | 2500 RPM | PNC |
K20A Spec R engine (FD2 Civic Type R)
Honda K20B (i-VTEC I) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2003–2006 |
Layout | |
Configuration | I4 |
Displacement | 2.0 L; 121.9 cu in (1,998 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 86 mm (3.386 in) |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC |
Compression ratio | 10.0:1 |
Combustion | |
Fuel system | Direct fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | 156 hp (116 kW) @ 6300 rpm |
Torque output | 139 lb⋅ft (188 N⋅m) @ 4600 rpm |
Honda K20Z (i-VTEC) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2005–2015 |
Layout | |
Configuration | I4 |
Displacement | 2.0 L; 121.9 cu in (1,998 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 86 mm (3.386 in) |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC on some models |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | Fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K20Z1 | 2005–2006 Acura RSX Type S | 11.0:1 | 210 hp (160 kW) @ 7800 RPM [a] | 143 lb⋅ft (194 N⋅m) @ 6200 RPM | 8100 RPM | 8300 RPM | 5800 RPM | PRB |
2005–2006 Honda Integra Type S (AUDM/NZDM) | 11.0:1 | 210 hp (160 kW) @ 7800 RPM | 143 lb⋅ft (194 N⋅m) @ 6200 RPM | 8100 RPM | 8300 RPM | 5800 RPM | ||
K20Z2 | 2006–2011 Acura CSX | 9.8:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | |||
2006–2008 Honda Accord (EDM) | 9.8:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | RBA | |||
2006–2010 Honda Civic (SEA) | 9.8:1 | 153 hp (114 kW) @ 6000 RPM | 139 lb⋅ft (188 N⋅m) @ 4500 RPM | 6800 RPM | RTB | |||
K20Z3 | 2006–2011 Honda Civic Si | 11.0:1 | 197 hp (147 kW) @ 7800 RPM [b] | 139 lb⋅ft (188 N⋅m) @ 6200 RPM [b] | 8000 RPM | 8300 RPM | 5800 RPM | RBC [c] |
2007–2010 Acura CSX Type S | 11.0:1 | 197 hp (147 kW) @ 7800 RPM [b] | 139 lb⋅ft (188 N⋅m) @ 6200 RPM [b] | 8000 RPM | 8300 RPM | 5800 RPM | ||
K20Z4 | 2007–2010 Honda Civic Type R (EDM) | 11.0:1 | 201 hp (150 kW) @ 7800 RPM | 142 lb⋅ft (193 N⋅m) @ 6800 RPM | 8000 RPM | 8200 RPM | 5400 RPM | RSP |
K20Z5 | 2007–2010 Honda Civic Si (BDM) | 11.0:1 | 192 hp (143 kW) @ 7800 RPM | 136 lb⋅ft (184 N⋅m) @ 6800 RPM | 8000 RPM | 8200 RPM | 5400 RPM |
K20Z3 (as fitted to Ariel's Atom 3.5)
K20C (Earth Dreams VTEC Turbo) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2015–present |
Layout | |
Configuration | I4 |
Displacement | 2.0 L; 121.8 cu in (1,996 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 85.9 mm (3.382 in) |
Cylinder block material | Aluminium |
Cylinder head material | Aluminium |
Valvetrain | DOHC 4 valves x cyl w/ VTEC/i-VTEC |
Compression ratio | See left for specific application. |
Combustion | |
Turbocharger | Single |
Fuel system | Direct fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement |
---|---|---|---|---|---|---|---|
K20C1 | 2015–2017 Honda Civic Type R (EDM) 2017–2021 Honda Civic Type R (USDM) 2023–present Honda Civic Type R (USDM) 2024–present Acura Integra Type S (K20C8) | 9.8:1 | 306–320 hp (228–239 kW) @ 6500 RPM | 295–310 lb⋅ft (400–420 N⋅m) @ 2500-4000 RPM | 7000 RPM | 7000 RPM | |
K20C3 | 2016–present Honda Avancier/UR-V (China) | 9.8:1 | 268 hp (200 kW) @ 6500 RPM | 273 lb⋅ft (370 N⋅m) @ 4200 RPM | 6100 RPM | ||
K20C4 | 2018–2022 Honda Accord (Sport, EX-L & Touring 2.0T trims) | 9.8:1 | 252 hp (188 kW) @ 6500 RPM | 273 lb⋅ft (370 N⋅m) @ 1500-4000 RPM | 6800 RPM | ||
2019–present Acura RDX | 9.8:1 | 272 hp (203 kW) @ 6500 RPM | 280 lb⋅ft (380 N⋅m) @ 1600-4500 RPM | 6800 RPM | |||
K20C5 | 2019–present Acura RDX (China) | 9.8:1 | 265 hp (195 kW) @ 6500 RPM | 280 lb⋅ft (380 N⋅m) @ 3000-4000 RPM | 6800 RPM | ||
K20C6 | 2021–present Acura TLX | 9.8:1 | 272 hp (203 kW) @ 6500 RPM | 280 lb-ft (380 N-m) @ 1600-4500 RPM | 6800 RPM |
K20C & K20Z (Earth Dreams i-VTEC) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2016–present |
Layout | |
Configuration | I4 |
Displacement | 2.0 L; 121.8 cu in (1,996 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 85.9 mm (3.382 in) |
Cylinder block material | Aluminium |
Cylinder head material | Aluminium |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | Port Injection (Multi-point Injection) |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement |
---|---|---|---|---|---|---|---|
K20C2 | 2016–2018 Honda Civic (LX & EX) Sedan (USDM) 2019–present Honda Civic (LX & Sport) Sedan (USDM) 2016–2020 Honda Civic (LX, LX-P, Sport) Coupe (USDM) 2022–2024 Honda Civic (LX, Sport) Hatchback (USDM) | 10.8:1 | 158 hp (118 kW) @ 6500 RPM | 138 lb⋅ft (187 N⋅m) @ 4200 RPM | 6700 RPM [14] | 7000 RPM | 6100 RPM (Manual) 6500 RPM (CVT) |
2016–2023 Formula 4 United States Championship | 10.8:1 | 158 hp (118 kW) @ 6500 RPM | 138 lb⋅ft (187 N⋅m) @ 4200 RPM | 6800 RPM | 7000 RPM | 6100 RPM | |
K20Z5 | 2023–present Honda HR-V (USDM) [15] | 10.8:1 | 158 hp (118 kW) @ 6500 RPM | 138 lb⋅ft (187 N⋅m) @ 4200 RPM | 6800 RPM [16] |
Honda K23A (i-VTEC Turbo) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2007–2012 |
Layout | |
Configuration | I4 |
Displacement | 2.3 L; 140.4 cu in (2,300 cc) |
Cylinder bore | 86 mm (3.386 in) |
Piston stroke | 99 mm (3.898 in) |
Cylinder block material | Aluminium |
Cylinder head material | Aluminium |
Valvetrain | DOHC 4 Valves x Cyl w/ i-VTEC |
Compression ratio | 8.8:1 |
Combustion | |
Turbocharger | 1 |
Fuel system | Fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | 240 hp (180 kW) @ 6000 RPM |
Torque output | 260 lb⋅ft (350 N⋅m) @ 4500 RPM |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K23A1 | 2007–2012 Acura RDX | 8.8:1 | 240 hp (180 kW) @ 6000 RPM | 260 lb⋅ft (350 N⋅m) @ 4500 RPM | 6800 RPM | 6900 RPM | 2500 RPM |
Honda K24A (i-VTEC) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2001–2016 |
Layout | |
Configuration | I4 |
Displacement | 2.4 L; 143.6 cu in (2,354 cc) |
Cylinder bore | 87 mm (3.425 in) |
Piston stroke | 99 mm (3.898 in) |
Valvetrain | DOHC 4 Valves x Cyl w/ i-VTEC |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | Fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K24A | 2002–2008 Honda Accord 24T, 24TL, 24S and Type-S (JDM) (CL9/CM2, FWD) [8] | 10.5:1 | 197 hp; 147 kW @ 6800 rpm | 171 lb⋅ft (232 N⋅m) @ 4500 rpm | 7100 rpm [a] | 7200 rpm | 6000 rpm | RBB |
2002–2008 Honda Accord 24T (JDM) (CM3, AWD) [8] | 10.5:1 | 187 hp; 140 kW @ 6800 rpm | 168 lb⋅ft (228 N⋅m) @ 4500 rpm | 7100 rpm [a] | 7200 rpm | 6000 rpm | RBB | |
2008–2013 Honda Accord 24E, 24IL, 24TL and Type-S (JDM) (CU2/CW2, FWD) [17] | 11:1 | 203 hp; 152 kW @ 7000 rpm | 171 lb⋅ft (232 N⋅m) @ 4300 rpm | 5000 rpm | R40 | |||
2003–2008 Honda Odyssey Absolute (JDM) (RB1, FWD) [18] | 10.5:1 | 197 hp; 147 kW @ 6800 rpm | 171 lb⋅ft (232 N⋅m) @ 4500 rpm | 7100 rpm [a] | 7200 rpm | 6000 rpm | RBB | |
2003–2008 Honda Odyssey Absolute (JDM) (RB2, AWD) | 10.5:1 | 187 hp; 140 kW @ 6800 rpm | 168 lb⋅ft (228 N⋅m) @ 4500 rpm | 7100 rpm [a] | 7200 rpm | 6000 rpm | RBB | |
2008–2013 Honda Odyssey Absolute (JDM) (RB3, FWD) [19] | 11:1 | 203 hp; 152 kW @ 7000 rpm | 171 lb⋅ft (232 N⋅m) @ 4300 rpm | 5000 rpm | R40 | |||
2008–2013 Honda Odyssey Absolute (JDM) (RB4, AWD) | 11:1 | 201 hp; 150 kW @ 7000 rpm | 170 lb⋅ft (230 N⋅m) @ 4300 rpm | R40 | ||||
K24A | 2003–2005 Honda Element (JDM) [20] | 9.7:1 | 158 hp; 118 kW @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | PZD | |||
2003–2008 Honda Odyssey (JDM) | 9.7:1 | 158 hp; 118 kW @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | RAA | ||||
2008–2013 Honda Odyssey (JDM) | 10:1 | 171 hp; 127 kW @ 6000 rpm | 164 lb⋅ft (222 N⋅m) @ 4300 rpm | RAA | ||||
2003–2005 Honda Stepwgn Spada 24T (JDM) [6] | 9.6:1 | 160 hp; 119 kW @ 6000 rpm | 160 lb⋅ft (220 N⋅m) @ 3600 rpm | |||||
2004–2013 Honda Elysion (JDM) [21] | 9.7:1 | 158 hp; 118 kW @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | |||||
2006–2009 Honda Edix 24S (JDM) [22] | 9.7:1 | 160 hp; 119 kW @ 5700 rpm | 161 lb⋅ft (218 N⋅m) @ 4000 rpm | |||||
2005–2006 Honda CR-V (JDM) [23] | 9.6:1 | 158 hp; 118 kW @ 6000 rpm | 160 lb⋅ft (220 N⋅m) @ 3600 rpm | 6500 rpm | 7000 rpm | PPA | ||
2006–2011 Honda CR-V (JDM) [24] | 9.7:1 | 168 hp; 125 kW @ 5800 rpm | 160 lb⋅ft (220 N⋅m) @ 4200 rpm | |||||
2011–2016 Honda CR-V (JDM) [25] | 10:1 | 187 hp; 140 kW @ 7000 rpm | 164 lb⋅ft (222 N⋅m) @ 4400 rpm | |||||
K24A1 | 2002–2006 Honda CR-V | 9.6:1 | 160 hp (119 kW) @ 6000 rpm | 162 lb⋅ft (220 N⋅m) @ 3600 rpm | 6500 rpm | 7000 rpm | 2750 rpm | PPA |
K24A2 | 2004–2005 Acura TSX | 10.5:1 | 197 hp; 147 kW @ 6800 rpm | 166 lb⋅ft (225 N⋅m) @ 4500 rpm | 7100 rpm | 7200 rpm | 6000 rpm | RBB |
2006–2008 Acura TSX [26] | 10.5:1 | 205 hp (153 kW) @ 7000 rpm | 164 lb⋅ft (222 N⋅m) @ 4500 rpm | 7100 rpm | 7200 rpm | 6000 rpm | RBB | |
K24A3 | 2003–2007 Honda Accord (EDM) | 10.5:1 | 190 PS (140 kW; 190 hp) @ 6800 rpm | 171 lb⋅ft (232 N⋅m) @ 4500 rpm | 7200 rpm | 7300 rpm | 6000 rpm | RBB |
2003–2007 Honda Accord Euro (AUDM/NZDM) | 10.5:1 | 190 PS (140 kW; 190 hp) @ 6800 rpm | 171 lb⋅ft (232 N⋅m) @ 4500 rpm | 7200 rpm | 7300 rpm | 6000 rpm | RBB | |
K24A4 | 2003–2005 Honda Accord (USDM) | 9.7:1 | 160 hp (119 kW) @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | 6800 rpm | 3500rpm | RAA | |
2003–2008 Honda Odyssey | 9.7:1 | 160 hp (119 kW) @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | 6800 rpm | RAA | |||
2003–2006 Honda Element | 9.7:1 | 160 hp (119 kW) @ 5500 rpm | 161 lb⋅ft (218 N⋅m) @ 4500 rpm | 6800 rpm | PZD | |||
K24A8 | 2006–2007 Honda Accord (USDM) | 9.7:1 | 166 hp (124 kW) @ 5800 rpm | 160 lb⋅ft (217 N⋅m) @ 4000 rpm | 6500 rpm | 2400/4500 rpm [b] | RAA | |
2007–2011 Honda Element | 9.7:1 | 166 hp (124 kW) @ 5800 rpm | 161 lb⋅ft (218 N⋅m) @ 4000 rpm | 6800 rpm | 2400/4500 rpm [b] | PZD | ||
2008–2014 Honda Odyssey (JDM) | 10.5:1 | 178 hp (133 kW) | 161 lb⋅ft (218 N⋅m) |
K24A2 and K24A3 (2006-2008 Acura TSX) [26]
Honda K24Z & K24Y (i-VTEC) | |
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Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2007–2015 |
Layout | |
Configuration | I4 |
Displacement | 2.4 L; 143.6 cu in (2,354 cc) |
Cylinder bore | 87 mm (3.425 in) |
Piston stroke | 99 mm (3.898 in) |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | Fuel injection |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Engine | Application | Compression | Power | Torque | Redline | Rev limiter | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K24Z1 | 2007–2009 Honda CR-V (RE3, RE4) | 9.7:1 | 166 hp (124 kW) @ 5800 RPM | 161 lb⋅ft (218 N⋅m) @ 4200 RPM | 6500 RPM | |||
K24Z2 | 2008–2012 Honda Accord LX/LX-P (USDM/CDM) | 10.5:1 | 177 hp (132 kW) @ 6500 RPM | 161 lb⋅ft (218 N⋅m) @ 4300 RPM | 6800 RPM | 7100 RPM | 5100 RPM | |
2016–2020 Proton Perdana | 10.5:1 | 177 hp (132 kW) @ 6500 RPM | 161 lb⋅ft (218 N⋅m) @ 4300 RPM | 6800 RPM | 7100 RPM | |||
K24Z3 | 2008–2012 Honda Accord LX-S/EX/EX-L (USDM/CDM) | 10.5:1 [27] | 190 hp (142 kW) @ 7000 RPM | 162 lb⋅ft (220 N⋅m) @ 4400 RPM | 7100 RPM | 5100 RPM | ||
2009–2014 Acura TSX and Honda Accord (Europe) [28] (CU2/CW2) | 11.0:1 | 201 hp (150 kW) @ 7000 RPM | 172 lb⋅ft (233 N⋅m) @ 4300 RPM | 7100 RPM | 5100 RPM | |||
K24Z4 | 2008–2012 Honda CR-V (RE7) | 9.7:1 | 161 hp (120 kW) @ 5800 RPM | 161 lb⋅ft (218 N⋅m) @ 4200 RPM | 6500 RPM | |||
K24Z5 | 2010–2015 Honda Spirior | 10.5:1 | 184 hp (137 kW) @ 6500 RPM | 164 lb⋅ft (222 N⋅m) @ 4300 RPM | 6500 RPM | |||
K24Z6 | 2010–2011 Honda CR-V (USDM/CDM) | 10.5:1 | 180 hp (134 kW) @ 6800 RPM | 161 lb⋅ft (218 N⋅m) @ 4400 RPM | 7100 RPM | 7200 RPM | ||
K24Z7 | 2012–2013 Honda Civic Si | 11.0:1 | 201 hp (150 kW) @ 7000 RPM | 170 lb⋅ft (230 N⋅m) @ 4400 RPM | 7000 RPM | 7200 RPM | 5200 RPM | |
2014–2015 Honda Civic Si | 11.0:1 | 205 hp (153 kW) @ 7000 RPM | 174 lb⋅ft (236 N⋅m) @ 4400 RPM | 7000 RPM | 7500 RPM | 5000 RPM | ||
2013–2015 Acura ILX | 11.0:1 | 201 hp (150 kW) @ 7000 RPM | 170 lb⋅ft (230 N⋅m) @ 4400 RPM | 7100 RPM | 7200 RPM | |||
2012–2014 Honda CR-V (USDM/CDM) | 10.0:1 | 185 hp (138 kW) @ 7000 RPM | 163 lb⋅ft (221 N⋅m) @ 4400 RPM | 7000 RPM | 7200 RPM | 5000 RPM | ||
K24Y1 | 2012–2014 Honda CR-V (Thailand) | 10.5:1 | 170 hp (127 kW) @ 6000 RPM | 162 lbf⋅ft (220 N⋅m) @ 4300 RPM | 6500 RPM | |||
K24Y2 | 2012–2015 Honda Crosstour | 10.0:1 | 192 hp (143 kW) @ 7000 RPM | 162 lb⋅ft (220 N⋅m) @ 4400 RPM | 7100 RPM |
Honda K24W & K24V (Earth Dreams i-VTEC) | |
---|---|
Overview | |
Manufacturer | Honda Motor Co., Ltd. |
Production | 2013–present |
Layout | |
Configuration | I4 |
Displacement | 2.4 L; 143.8 cu in (2,356 cc) |
Cylinder bore | 87 mm (3.425 in) |
Piston stroke | 99 mm (3.898 in) |
Valvetrain | DOHC 4 valves x cyl w/ i-VTEC |
Compression ratio | See left for specific application. |
Combustion | |
Fuel system | See left for specific application. |
Management | ECU |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | See left for specific application. |
Torque output | See left for specific application. |
Dimensions | |
Length | 30cm |
Direct Injection, i-VTEC (intake camshaft & valvetrain)
Engine | Application | Compression | Fuel Injection | Power | Torque | Redline | i-VTEC engagement | Intake Manifold |
---|---|---|---|---|---|---|---|---|
K24W | 2013–present Honda Odyssey (JDM) [29] | 11.1:1 | Multi Point | 185 hp (138 kW) @ 6400 RPM | 173 lb⋅ft (235 N⋅m) @ 4000 RPM | 6800 RPM | 4800 RPM | |
K24W1 | 2013–2017 Honda Accord (USDM) [30] | 11.1:1 | Direct | 185 hp (138 kW) @ 6400 RPM | 181 lb⋅ft (245 N⋅m) @ 3900 RPM | 6800 RPM | 4800 RPM | |
K24W4 | 2013–2018 Honda Accord (Thailand/Malaysia) | 10.1:1 | Multi Point | 174 hp (130 kW) @ 6200 RPM | 166 lb⋅ft (225 N⋅m) @ 4000 RPM | 6500 RPM | ||
2013–present Honda Odyssey (International model excl. Japan) | 10.1:1 | 174 hp (130 kW) @ 6200 RPM | 166 lb⋅ft (225 N⋅m) @ 4000 RPM | 6500 RPM | ||||
K24W7 | 2015–2020 Acura TLX | 11.6:1 | Direct | 206 hp (154 kW) @ 6800 RPM | 182 lb⋅ft (247 N⋅m) @ 3900 RPM | 7000 RPM | 5000 RPM +/-100 RPM | |
2015–2018 Honda Spirior Si | 11.6:1 | 202 hp (151 kW) @ 6800 RPM | 182 lb⋅ft (247 N⋅m) @ 3900 RPM | 7000 RPM | 5000 RPM +/-100 RPM | |||
K24W9 | 2015–2019 Honda CR-V [ broken anchor ] (USDM) [31] | 11.1:1 | Direct | 185 hp (138 kW) @ 6400 RPM | 181 lb⋅ft (245 N⋅m) @ 3900 RPM | 6800 RPM | 4800 RPM | |
K24V5 | 2015–2016 Honda CR-V (Thailand) | 10.1:1 | Multi Point | 174 hp (130 kW) @ 6200 RPM | 166 lb⋅ft (225 N⋅m) @ 4000 RPM | 6500 RPM | ||
2017–2022 Honda CR-V (Thailand) [32] [33] | 10.1:1 | 170 hp (130 kW) @ 6200 RPM | 165 lb⋅ft (224 N⋅m) @ 4000 RPM | 6500 RPM | ||||
K24V7 | 2016–2022 Acura ILX [34] [35] | 11.6:1 | Direct | 201 hp (150 kW) @ 6800 RPM | 180 lb⋅ft (240 N⋅m) @ 3800 RPM | 7000 RPM | 5000 RPM +/-100 RPM |
Please note: The K24W1 in the 2013-2017 Honda Accord had a raised power output of 189 hp and 182 lb•ft in the Sport Trim due to a different exhaust setup.
The Honda K-series engines have built a significant legacy, widely regarded as some of the most influential and celebrated four-cylinder engines in automotive history. The engine’s reliability and performance, coupled with its lightweight aluminium construction and chain-driven timing system, solidified its reputation as a benchmark in engine design. This engineering excellence made the K-series a revered engine amongst people, setting a new standard for four-cylinder engines. As a result, it gained widespread praise for being durable and tuneable, quickly becoming a favourite among car enthusiasts and professional tuners alike due to its potential to handle both everyday driving and high-performance applications. [36]
The K-series engine’s impact extends beyond factory specifications, with its wide adoption in the aftermarket scene. The K20 and K24 variants, in particular, are often used in engine swaps and high-performance builds due to their ability to handle and withstand significant power upgrades. This adaptability, coupled with their success in motorsports like time attack and drag racing, cemented the K-series as one of thegreatest four-cylinder engines of all time. [37]
The engine remains a benchmark from its long production run to this day, continuing to influence modern engine design and tuning practices.
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The fourth-generation Honda Integra, produced by Honda, was introduced in Japan on 13 April 2001 and produced from July 2001 until August 2006. It was introduced in North America on 2 July 2001 as the Acura RSX, the name a part of Acura's naming scheme changing the names of its models from recognizable names like "Integra" or "Legend" to alphabetical designations in order for buyers to build more recognition to the marque, and not the individual cars.
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Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems.
Nissan Ecology Oriented Variable Valve Lift and Timing is an automobile variable valve timing technology developed by Nissan. VVL varies the duration, and lift of valves by using hydraulic pressure switch between two different sets of camshaft lobes. VVT varies the valve timing throughout the RPM range. Together they function similarly to Honda's VTEC system.
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The E-series was a line of inline four-cylinder automobile engines designed and built by Honda for use in their cars in the 1970s and 1980s. These engines were notable for the use of CVCC technology, introduced in the ED1 engine in the 1975 Civic, which met 1970s emissions standards without using a catalytic converter.
The J-series is Honda's fourth production V6 engine family introduced in 1996, after the C-series, which consisted of three dissimilar versions. The J-series engine was designed in the United States by Honda engineers. It is built at Honda's Anna, Ohio, and Lincoln, Alabama, engine plants.
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The fifth-generation Honda Civic is an automobile produced by Honda from 1991 until 1995. It debuted in Japan on September 9, 1991. At its introduction, it won the Car of the Year Japan award for the second time. Fifth-generation Civics were larger than their predecessors, had more aerodynamic bodies, and the wheelbase was increased to 257 cm (101.3 inches)—for the three-door hatchback—and to 262 cm (103.2 inches)—for the four-door sedan. The Civic Shuttle station wagon was not part of the fifth generation and was dropped for overseas markets, while the previous-generation wagon continued in Japan and Europe.
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