Honda K engine

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Honda K24A4 2.4L DOHC i-VTEC Engine installed in 2003 Honda Accord Honda K24A Engine 02.JPG
Honda K24A4 2.4L DOHC i-VTEC Engine installed in 2003 Honda Accord

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.

Contents

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]

A cylinder head from a Honda K20Z3. Components of the i-VTEC system can be seen. K20 head.jpg
A cylinder head from a Honda K20Z3. Components of the i-VTEC system can be seen.

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.

K20

K20A (i-VTEC)

Honda K20A (i-VTEC)
Honda K20A Engine 01.JPG
Overview
Manufacturer Honda Motor Co., Ltd.
Production2001–2011
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 materialNSH 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)
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement		Intake
Manifold
K20A
(High Performance)		2001–2006 Honda Civic Type R (JDM)11.5:1212 hp (158 kW) @ 8000 RPM149 lb⋅ft (202 N⋅m) @ 7000 RPM8400 RPM6000 RPMPRC
2001–2006 Honda Integra Type R (JDM)11.5:1217 hp (162 kW) @ 8000 RPM152 lb⋅ft (206 N⋅m) @ 7000 RPM8400 RPM8600 RPM6000 RPMPRC
2002–2008 Honda Accord Euro R (JDM)11.5:1217 hp (162 kW) @ 8000 RPM152 lb⋅ft (206 N⋅m) @ 6000 RPM8400 RPM6000 RPMRBC
2007–2011 Honda Civic Type R (JDM)11.7:1221 hp (165 kW) @ 8000 RPM159 lb⋅ft (215 N⋅m) @ 6100 RPM8400 RPM8600 RPM5800 RPMRRC
K20A (Eco)2000–2006 Honda Stream (JDM) (RN3, FWD) [3] 9.7:1154 hp (115 kW) @ 6500 RPM139 lb⋅ft (188 N⋅m) @ 4000 RPM6800 RPMPNC
2000–2006 Honda Stream (JDM) (RN4, AWD)9.8:1156 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM7000PNC
2001–2004 Honda CR-V (JDM)9.8:1150 hp (112 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPMPNA
2001–2006 Honda Integra Type S (JDM) [4] 9.8:1158 hp (118 kW) @ 6500 RPM141 lb⋅ft (191 N⋅m) @ 4000 RPM6800 RPMPNC
2001–2005 Honda Stepwgn (JDM) [5] 9.8:1158 hp (118 kW) @ 6500 RPM141 lb⋅ft (191 N⋅m) @ 4000 RPM6800 RPMPNC
2001–2005 Honda Stepwgn Spada (JDM) [6] 9.7:1158 hp (118 kW) @ 6500 RPM141 lb⋅ft (191 N⋅m) @ 4000 RPM6800 RPMPNC
2005–2009 Honda Stepwgn (JDM) [7] 9.6:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPMRTA
2002–2008 Honda Accord (JDM) (CL7-CM1, FWD) [8] 9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPMRAA
2002–2008 Honda Accord (JDM) (CL8, AWD) [8] 9.8:1150 hp (112 kW) @ 6000 RPM137 lb⋅ft (186 N⋅m) @ 4500 RPM6800 RPMRAA
2004–2009 Honda Edix (JDM) [9] 9.7:1154 hp (115 kW) @ 6500 RPM139 lb⋅ft (188 N⋅m) @ 4000 RPM6800 RPMPNC
2005–2010 Honda Civic (JDM) [10] 9.6:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPMRTB
K20A12001–2006 Honda Stream (RN3, FWD)9.7:1156 hp (116 kW) @ 6500 RPM139 lb⋅ft (188 N⋅m) @ 4000 RPM6800 RPMPNA
2001–2006 Honda Stream (RN4, AWD)9.8:1158 hp (118 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPMPNC
K20A22001–2006 Honda Civic Type R (EDM)11.0:1200 hp (150 kW) @ 7400 RPM139 lb⋅ft (188 N⋅m) @ 5900 RPM7900 RPM8250 RPM5800 RPMPRB
2002–2004 Acura RSX Type S 11.0:1200 hp (149 kW) @ 7400 RPM142 lb⋅ft (193 N⋅m) @ 6000 RPM7900 RPM8250 RPM5800 RPMPRB
2002–2004 Honda Integra Type R (AUDM/NZDM)11.0:1200 hp (149 kW) @ 7400 RPM142 lb⋅ft (193 N⋅m) @ 6000 RPM7800 RPM8100 RPM5800 RPM
K20A32002–2006 Acura RSX 9.8:1160 hp (119 kW) @ 6500 RPM142 lb⋅ft (193 N⋅m) @ 4000 RPM6800 RPM7000 RPM2300 RPM [11] PNC
2002–2005 Honda Civic 9.8:1160 hp (119 kW) @ 6500 RPM141 lb⋅ft (191 N⋅m) @ 4000 RPM6800 RPM7000 RPM2300 RPMPRB
2002–2005 Honda Civic Si USDM9.8:1160 hp (119 kW) @ 6500 RPM132 lb⋅ft (179 N⋅m) @ 4000 RPM6800 RPM7000

RPM

2300 RPMPRB
2002–2005 Honda Civic Type S EDM9.8:1160 hp (119 kW) @ 6500 RPM132 lb⋅ft (179 N⋅m) @ 4000 RPM6800 RPM7100 RPM2200 RPMPRB
2003–2006 Honda Civic 2.0 i-VTEC (SEA)9.8:1155 hp (116 kW) @ 6500 RPM131 lb⋅ft (177 N⋅m) @ 5000 RPM6800 RPM7000 RPMPRB
K20A42002–2006 Honda CR-V 9.8:1156 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPMPNA
K20A62003–2006 Honda Accord (EDM)9.8:1155 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM2500 RPMRAA
2003–2006 Honda Accord (ADM)9.8:1155 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM2500 RPMRAA
K20A72003–2007 Honda Accord (SEA)9.8:1150 hp (112 kW) @ 6000 RPM137 lb⋅ft (186 N⋅m) @ 4500 RPM6800 RPMRAA
K20A92004-2007 Honda FR-V (EDM)9.8:1150 hp (112 kW) @ 6500 RPM142 lb⋅ft (192 N⋅m) @ 4000 RPM6800 RPM2500 RPMPNC
Additional notes

K20A Spec R engine (FD2 Civic Type R)

K20B (i-VTEC I)

Honda K20B (i-VTEC I)
Overview
Manufacturer Honda Motor Co., Ltd.
Production2003–2006
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

K20Z (i-VTEC)

Honda K20Z (i-VTEC)
Honda K20Z3 Engine.jpg
Overview
Manufacturer Honda Motor Co., Ltd.
Production2005–2015
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.
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement		Intake
Manifold
K20Z12005–2006 Acura RSX Type S 11.0:1210 hp (160 kW) @ 7800 RPM [lower-alpha 1] 143 lb⋅ft (194 N⋅m) @ 6200 RPM8100 RPM8300 RPM5800 RPMPRB
2005–2006 Honda Integra Type S (AUDM/NZDM)11.0:1210 hp (160 kW) @ 7800 RPM143 lb⋅ft (194 N⋅m) @ 6200 RPM8100 RPM8300 RPM5800 RPM
K20Z22006–2011 Acura CSX 9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPM
2006–2008 Honda Accord (EDM)9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPMRBA
2006–2010 Honda Civic (SEA)9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPMRTB
K20Z32006–2011 Honda Civic Si 11.0:1197 hp (147 kW) @ 7800 RPM [lower-alpha 2] 139 lb⋅ft (188 N⋅m) @ 6200 RPM [lower-alpha 2] 8000 RPM8300 RPM5800 RPMRBC [lower-alpha 3]
2007–2010 Acura CSX Type S 11.0:1197 hp (147 kW) @ 7800 RPM [lower-alpha 2] 139 lb⋅ft (188 N⋅m) @ 6200 RPM [lower-alpha 2] 8000 RPM8300 RPM5800 RPM
K20Z42007–2010 Honda Civic Type R (EDM)11.0:1201 hp (150 kW) @ 7800 RPM142 lb⋅ft (193 N⋅m) @ 6800 RPM8000 RPM8200 RPM5400 RPMRSP
K20Z52007–2010 Honda Civic Si (BDM)11.0:1192 hp (143 kW) @ 7800 RPM136 lb⋅ft (184 N⋅m) @ 6800 RPM8000 RPM8200 RPM5400 RPM
  1. ↑ SAE BHP measurement changes from 2005 to 2006. Thus, reducing the 2006 Acura RSX Type S rating from 210 hp (160 kW) to 201 hp (150 kW) on paper.
  2. 1 2 3 4 SAE net Rev 8/04
  3. ↑ The RBC is not a variable-length intake.
Additional notes

K20Z3 (as fitted to Ariel's Atom 3.5)

K20C (Earth Dreams VTEC Turbo)

K20C (Earth Dreams VTEC Turbo)
K20C1.jpg
Overview
Manufacturer Honda Motor Co., Ltd.
Production2015–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.
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement
K20C12015–2017 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)		9.8:1306–320 hp (228–239 kW) @ 6500 RPM295–310 lb⋅ft (400–420 N⋅m) @ 2500-4000 RPM7000 RPM7000 RPM
K20C32016–present Honda Avancier/UR-V (China)9.8:1268 hp (200 kW) @ 6500 RPM273 lb⋅ft (370 N⋅m) @ 4200 RPM6100 RPM
K20C42018–2022 Honda Accord

(Sport, EX-L & Touring 2.0T trims)

9.8:1252 hp (188 kW) @ 6500 RPM273 lb⋅ft (370 N⋅m) @ 1500-4000 RPM6800 RPM
2019–present Acura RDX
9.8:1272 hp (203 kW) @ 6500 RPM280 lb⋅ft (380 N⋅m) @ 1600-4500 RPM6800 RPM
K20C52019–present Acura RDX (China)9.8:1265 hp (195 kW) @ 6500 RPM280 lb⋅ft (380 N⋅m) @ 3000-4000 RPM6800 RPM
K20C62021–present Acura TLX 9.8:1272 hp (203 kW) @ 6500 RPM280 lb-ft (380 N-m) @ 1600-4500 RPM6800 RPM
Additional notes

K20C & K20Z (Earth Dreams i-VTEC)

K20C & K20Z
(Earth Dreams i-VTEC)
Honda-K20C2.jpg
Overview
Manufacturer Honda Motor Co., Ltd.
Production2016–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.
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement
K20C22016–2018 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)

10.8:1158 hp (118 kW) @ 6500 RPM138 lb⋅ft (187 N⋅m) @ 4200 RPM6700 RPM [14] 7000 RPM6100 RPM (Manual)
6500 RPM (CVT)
2016–2023 Formula 4 United States Championship 10.8:1158 hp (118 kW) @ 6500 RPM138 lb⋅ft (187 N⋅m) @ 4200 RPM6800 RPM7000 RPM6100 RPM
K20Z52023–present Honda HR-V (USDM) [15] 10.8:1158 hp (118 kW) @ 6500 RPM138 lb⋅ft (187 N⋅m) @ 4200 RPM6800 RPM [16]

K23

K23A (i-VTEC Turbo)

Honda K23A (i-VTEC Turbo)
K23A1.jpg
Overview
Manufacturer Honda Motor Co., Ltd.
Production2007–2012
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
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement		Intake
Manifold
K23A12007–2012 Acura RDX 8.8:1240 hp (180 kW) @ 6000 RPM260 lb⋅ft (350 N⋅m) @ 4500 RPM6800 RPM6900 RPM2500 RPM
Additional notes

K24

K24A (i-VTEC)

Honda K24A (i-VTEC)
Honda K24A Engine 01.JPG
Overview
Manufacturer Honda Motor Co., Ltd.
Production2001–2016
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.
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement		Intake
Manifold
K24A
(High Performance)		2002–2008 Honda Accord 24T, 24TL, 24S and Type-S (JDM) (CL9/CM2, FWD) [8] 10.5:1197 hp; 147 kW @ 6800 rpm171 lb⋅ft (232 N⋅m) @ 4500 rpm7100 rpm [lower-alpha 1] 7200 rpm6000 rpmRBB
2002–2008 Honda Accord 24T (JDM) (CM3, AWD) [8] 10.5:1187 hp; 140 kW @ 6800 rpm168 lb⋅ft (228 N⋅m) @ 4500 rpm7100 rpm [lower-alpha 1] 7200 rpm6000 rpmRBB
2008–2013 Honda Accord 24E, 24IL, 24TL and Type-S (JDM) (CU2/CW2, FWD) [17] 11:1203 hp; 152 kW @ 7000 rpm171 lb⋅ft (232 N⋅m) @ 4300 rpm5000 rpmR40
2003–2008 Honda Odyssey Absolute (JDM) (RB1, FWD) [18] 10.5:1197 hp; 147 kW @ 6800 rpm171 lb⋅ft (232 N⋅m) @ 4500 rpm7100 rpm [lower-alpha 1] 7200 rpm6000 rpmRBB
2003–2008 Honda Odyssey Absolute (JDM) (RB2, AWD)10.5:1187 hp; 140 kW @ 6800 rpm168 lb⋅ft (228 N⋅m) @ 4500 rpm7100 rpm [lower-alpha 1] 7200 rpm6000 rpmRBB
2008–2013 Honda Odyssey Absolute (JDM) (RB3, FWD) [19] 11:1203 hp; 152 kW @ 7000 rpm171 lb⋅ft (232 N⋅m) @ 4300 rpm5000 rpmR40
2008–2013 Honda Odyssey Absolute (JDM) (RB4, AWD)11:1201 hp; 150 kW @ 7000 rpm170 lb⋅ft (230 N⋅m) @ 4300 rpmR40
K24A (Eco)2003–2005 Honda Element (JDM) [20] 9.7:1158 hp; 118 kW @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpmPZD
2003–2008 Honda Odyssey (JDM)9.7:1158 hp; 118 kW @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpmRAA
2008–2013 Honda Odyssey (JDM)10:1171 hp; 127 kW @ 6000 rpm164 lb⋅ft (222 N⋅m) @ 4300 rpmRAA
2003–2005 Honda Stepwgn Spada 24T (JDM) [6] 9.6:1160 hp; 119 kW @ 6000 rpm160 lb⋅ft (220 N⋅m) @ 3600 rpm
2004–2013 Honda Elysion (JDM) [21] 9.7:1158 hp; 118 kW @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpm
2006–2009 Honda Edix 24S (JDM) [22] 9.7:1160 hp; 119 kW @ 5700 rpm161 lb⋅ft (218 N⋅m) @ 4000 rpm
2005–2006 Honda CR-V (JDM) [23] 9.6:1158 hp; 118 kW @ 6000 rpm160 lb⋅ft (220 N⋅m) @ 3600 rpm6500 rpm7000 rpmPPA
2006–2011 Honda CR-V (JDM) [24] 9.7:1168 hp; 125 kW @ 5800 rpm160 lb⋅ft (220 N⋅m) @ 4200 rpm
2011–2016 Honda CR-V (JDM) [25] 10:1187 hp; 140 kW @ 7000 rpm164 lb⋅ft (222 N⋅m) @ 4400 rpm
K24A12002–2006 Honda CR-V 9.6:1160 hp (119 kW) @ 6000 rpm162 lb⋅ft (220 N⋅m) @ 3600 rpm6500 rpm7000 rpm2750 rpmPPA
K24A22004–2005 Acura TSX 10.5:1197 hp; 147 kW @ 6800 rpm166 lb⋅ft (225 N⋅m) @ 4500 rpm7100 rpm7200 rpm6000 rpmRBB
2006–2008 Acura TSX [26] 10.5:1205 hp (153 kW) @ 7000 rpm164 lb⋅ft (222 N⋅m) @ 4500 rpm7100 rpm7200 rpm6000 rpmRBB
K24A32003–2007 Honda Accord (EDM)10.5:1190 PS (140 kW; 190 hp) @ 6800 rpm171 lb⋅ft (232 N⋅m) @ 4500 rpm7200 rpm7300 rpm6000 rpmRBB
2003–2007 Honda Accord Euro (AUDM/NZDM)10.5:1190 PS (140 kW; 190 hp) @ 6800 rpm171 lb⋅ft (232 N⋅m) @ 4500 rpm7200 rpm7300 rpm6000 rpmRBB
K24A42003–2005 Honda Accord (USDM)9.7:1160 hp (119 kW) @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpm6800 rpm3500rpmRAA
2003–2008 Honda Odyssey 9.7:1160 hp (119 kW) @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpm6800 rpmRAA
2003–2006 Honda Element 9.7:1160 hp (119 kW) @ 5500 rpm161 lb⋅ft (218 N⋅m) @ 4500 rpm6800 rpmPZD
K24A82006–2007 Honda Accord (USDM)9.7:1166 hp (124 kW) @ 5800 rpm160 lb⋅ft (217 N⋅m) @ 4000 rpm6500 rpm2400/4500 rpm [lower-alpha 2] RAA
2007–2011 Honda Element 9.7:1166 hp (124 kW) @ 5800 rpm161 lb⋅ft (218 N⋅m) @ 4000 rpm6800 rpm2400/4500 rpm [lower-alpha 2] PZD
2008–2014 Honda Odyssey (JDM)10.5:1178 hp (133 kW)161 lb⋅ft (218 N⋅m)
  1. 1 2 3 4
    Automatic: 7100 rpm
    Sequential Sportshift: 7300 rpm
    Manual: 7600 rpm
  2. 1 2 2400 rpm While in fuel efficiency mode. 4500 rpm in performance mode.
Additional notes

K24A2 and K24A3 (2006-2008 Acura TSX) [26]

  • Increased intake flow:
    • Intake valve + 1 mm oversize (Intake valve head measures 36mm, but valve seat still measures 35mm)
    • Intake cam High lift lobe with 0.9 mm more lift and 12 degrees more duration
    • Throttle body increased from 60–64 mm
    • Radius on some intake pipes increased from 70–80 mm
  • Increased exhaust flow
    • Exhaust Head pipe increased from 60–65 mm
    • Higher flow catalytic converter
    • Main (single) exhaust pipe increased from 54–57 mm
    • Rear (twin) pipes increased in diameter from 42.5 to 45 mm
  • Block improvements:
    • Additional air passages in crankcase for reduced pumping losses
  • Others
    • Stronger connecting rods
    • Under-piston oil squirters

K24Z & K24Y (i-VTEC)

Honda K24Z & K24Y (i-VTEC)
Overview
Manufacturer Honda Motor Co., Ltd.
Production2007–2015
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.
Applications
EngineApplicationCompressionPowerTorqueRedlineRev limiteri-VTEC
engagement		Intake
Manifold
K24Z12007–2009 Honda CR-V (RE3, RE4)9.7:1166 hp (124 kW) @ 5800 RPM161 lb⋅ft (218 N⋅m) @ 4200 RPM6500 RPM
K24Z22008–2012 Honda Accord LX/LX-P (USDM/CDM)10.5:1177 hp (132 kW) @ 6500 RPM161 lb⋅ft (218 N⋅m) @ 4300 RPM6800 RPM7100 RPM5100 RPM
2016–2020 Proton Perdana 10.5:1177 hp (132 kW) @ 6500 RPM161 lb⋅ft (218 N⋅m) @ 4300 RPM6800 RPM7100 RPM
K24Z32008–2012 Honda Accord LX-S/EX/EX-L (USDM/CDM)10.5:1 [27] 190 hp (142 kW) @ 7000 RPM162 lb⋅ft (220 N⋅m) @ 4400 RPM7100 RPM5100 RPM
2009–2014 Acura TSX and Honda Accord (Europe) [28] (CU2/CW2)11.0:1201 hp (150 kW) @ 7000 RPM172 lb⋅ft (233 N⋅m) @ 4300 RPM7100 RPM5100 RPM
K24Z42008–2012 Honda CR-V (RE7)9.7:1161 hp (120 kW) @ 5800 RPM161 lb⋅ft (218 N⋅m) @ 4200 RPM6500 RPM
K24Z52010–2015 Honda Spirior 10.5:1184 hp (137 kW) @ 6500 RPM164 lb⋅ft (222 N⋅m) @ 4300 RPM6500 RPM
K24Z62010–2011 Honda CR-V (USDM/CDM)10.5:1180 hp (134 kW) @ 6800 RPM161 lb⋅ft (218 N⋅m) @ 4400 RPM7100 RPM7200 RPM
K24Z72012–2013 Honda Civic Si 11.0:1201 hp (150 kW) @ 7000 RPM170 lb⋅ft (230 N⋅m) @ 4400 RPM7000 RPM7200 RPM5200 RPM
2014–2015 Honda Civic Si 11.0:1205 hp (153 kW) @ 7000 RPM174 lb⋅ft (236 N⋅m) @ 4400 RPM7000 RPM7500 RPM5000 RPM
2013–2015 Acura ILX 11.0:1201 hp (150 kW) @ 7000 RPM170 lb⋅ft (230 N⋅m) @ 4400 RPM7100 RPM7200 RPM
2012–2014 Honda CR-V (USDM/CDM)10.0:1185 hp (138 kW) @ 7000 RPM163 lb⋅ft (221 N⋅m) @ 4400 RPM7000 RPM7200 RPM5000 RPM
K24Y12012–2014 Honda CR-V (Thailand)10.5:1170 hp (127 kW) @ 6000 RPM162 lbf⋅ft (220 N⋅m) @ 4300 RPM6500 RPM
K24Y22012–2015 Honda Crosstour 10.0:1192 hp (143 kW) @ 7000 RPM162 lb⋅ft (220 N⋅m) @ 4400 RPM7100 RPM

K24W & K24V (Earth Dreams i-VTEC)

Honda K24W & K24V (Earth Dreams i-VTEC)
Honda K24W.jpg
Overview
Manufacturer Honda Motor Co., Ltd.
Production2013–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 systemSee 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
Length30cm

Direct Injection, i-VTEC (intake camshaft & valvetrain)

Applications
EngineApplicationCompressionFuel InjectionPowerTorqueRedlinei-VTEC
engagement		Intake
Manifold
K24W2013–present Honda Odyssey (JDM) [29] 11.1:1Multi Point185 hp (138 kW) @ 6400 RPM173 lb⋅ft (235 N⋅m) @ 4000 RPM6800 RPM4800 RPM
K24W12013–2017 Honda Accord (USDM) [30] 11.1:1Direct185 hp (138 kW) @ 6400 RPM181 lb⋅ft (245 N⋅m) @ 3900 RPM6800 RPM4800 RPM
K24W42013–2018 Honda Accord (Thailand/Malaysia)10.1:1Multi Point174 hp (130 kW) @ 6200 RPM166 lb⋅ft (225 N⋅m) @ 4000 RPM6500 RPM
2013–present Honda Odyssey (International model excl. Japan)10.1:1174 hp (130 kW) @ 6200 RPM166 lb⋅ft (225 N⋅m) @ 4000 RPM6500 RPM
K24W72015–2020 Acura TLX 11.6:1Direct206 hp (154 kW) @ 6800 RPM182 lb⋅ft (247 N⋅m) @ 3900 RPM7000 RPM5000 RPM +/-100 RPM
2015–2018 Honda Spirior Si11.6:1202 hp (151 kW) @ 6800 RPM182 lb⋅ft (247 N⋅m) @ 3900 RPM7000 RPM5000 RPM +/-100 RPM
K24W92015–2019 Honda CR-V [ broken anchor ] (USDM) [31] 11.1:1Direct185 hp (138 kW) @ 6400 RPM181 lb⋅ft (245 N⋅m) @ 3900 RPM6800 RPM4800 RPM
K24V52015–2016 Honda CR-V (Thailand)10.1:1Multi Point174 hp (130 kW) @ 6200 RPM166 lb⋅ft (225 N⋅m) @ 4000 RPM6500 RPM
2017–2022 Honda CR-V (Thailand) [32] [33] 10.1:1170 hp (130 kW) @ 6200 RPM165 lb⋅ft (224 N⋅m) @ 4000 RPM6500 RPM
K24V72016–2022 Acura ILX [34] [35] 11.6:1Direct201 hp (150 kW) @ 6800 RPM180 lb⋅ft (240 N⋅m) @ 3800 RPM7000 RPM5000 RPM +/-100 RPM

Legacy

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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References

  1. ↑ "Honda K-Series Engines". JDM Spec Engines. Archived from the original on 13 March 2014. Retrieved 20 May 2014.{{cite web}}: CS1 maint: unfit URL (link)
  2. ↑ "Civic Type R K20C1 Engine". Engine Builder Mag. Retrieved 23 June 2023.
  3. ↑ "Honda｜ストリーム（2005年12月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 24 September 2016. Retrieved 30 March 2021.
  4. ↑ "Honda｜インテグラ（2006年9月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 27 October 2017. Retrieved 30 March 2021.
  5. ↑ "Honda｜ステップワゴン（2005年4月終了モデル）". www.honda.co.jp. Archived from the original on 21 June 2016. Retrieved 30 March 2021.
  6. 1 2 "Honda｜ステップワゴン スパーダ（2005年4月終了モデル）". www.honda.co.jp. Archived from the original on 23 September 2017. Retrieved 30 March 2021.
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  8. 1 2 3 4 "Honda｜アコード（2008年11月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 22 June 2016. Retrieved 30 March 2021.
  9. ↑ "Honda｜エディックス（2005年11月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 1 July 2016. Retrieved 30 March 2021.
  10. ↑ "Honda｜シビック（2007年8月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 18 May 2017. Retrieved 30 March 2021.
  11. ↑ "Technical Information RSX VTEC and VTC". Hondata. Archived from the original on 12 May 2018. Retrieved 21 April 2018.
  12. ↑ "Honda K20A 2.0l DOHC i-VTEC SPEC R Engine for the new FD2 CIVIC TYPE R". Asia.vtec.net. Archived from the original on 6 February 2017. Retrieved 15 October 2018.
  13. ↑ "Civic Type R K20C1 Engine". Engine Builder Mag. Retrieved 23 June 2023.
  14. ↑ "Vehicle Specifications - 2018 Honda Civic Sedan - Honda Owners Site". Owners.honda.com. Archived from the original on 5 November 2018. Retrieved 15 October 2018.
  15. ↑ "The 2023 HR-V has shown up at a few dealers already. What we know so far". Temple of VTEC. 6 June 2022. Retrieved 26 June 2022.
  16. ↑ "2023 Honda HR-V Specifications & Features". American Honda Motor Co., Inc. 7 June 2022. Retrieved 26 June 2022.
  17. ↑ "Honda│アコード（2013年3月終了モデル）│スペック". www.honda.co.jp. Archived from the original on 13 September 2016. Retrieved 30 March 2021.
  18. ↑ "Honda｜オデッセイ（2007年1月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 28 July 2016. Retrieved 30 March 2021.
  19. ↑ "Honda│オデッセイ（2013年9月終了モデル）│スペック". www.honda.co.jp. Archived from the original on 7 July 2018. Retrieved 30 March 2021.
  20. ↑ "Honda｜エレメント（2005年5月終了モデル）". www.honda.co.jp. Archived from the original on 12 June 2017. Retrieved 30 March 2021.
  21. ↑ "Honda｜エリシオン（2005年8月終了モデル）". www.honda.co.jp. Archived from the original on 13 July 2018. Retrieved 30 March 2021.
  22. ↑ "Honda｜エディックス（2009年8月終了モデル）│Webカタログ│スペック（諸元表）". www.honda.co.jp. Archived from the original on 13 November 2017. Retrieved 30 March 2021.
  23. ↑ "Honda｜CR-V（2006年9月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 23 April 2021. Retrieved 30 March 2021.
  24. ↑ "Honda｜CR-V（2007年8月終了モデル）｜スペック". www.honda.co.jp. Archived from the original on 23 April 2021. Retrieved 30 March 2021.
  25. ↑ "性能 | CR-V（2016年8月終了モデル） | Honda". www.honda.co.jp. Archived from the original on 29 July 2019. Retrieved 30 March 2021.
  26. 1 2 "2008 Acura TSX - Powertrain". acuranews.com. Archived from the original on 15 October 2018. Retrieved 15 October 2018.
  27. ↑ "2012 Honda Accord Specifications and Features". Honda Automobiles Newsroom. 17 August 2011. Archived from the original on 23 April 2021. Retrieved 3 October 2020.
  28. ↑ "2009 Acura TSX - Powertrain" (Press release). Torrance, CA: Acura. 20 April 2008. Retrieved 1 September 2015.
  29. ↑ "Odyssey Specification List" (PDF). Honda (in Japanese). Retrieved 9 June 2023.
  30. ↑ "2016 Honda ACCORD (2.4L 4 -cyl Engine Code K24W1 7) Motor Oil, Filters and Lubricants - AMSOIL" . Retrieved 9 June 2023.
  31. ↑ "2019 Honda CR-V (2.4L 4 -cyl Engine Code K24W9 K) Motor Oil, Filters and Lubricants - AMSOIL" . Retrieved 9 June 2023.
  32. ↑ "ECO sticker - Honda CR-V 2.4 EL 4WD". ECO sticker - The Office of Industrial Economics, Ministry of Industry Thailand (in Thai). Archived from the original on 27 September 2020. Retrieved 18 January 2020.
  33. ↑ "Honda CR-V Catalogue" (PDF). Honda Thailand (in Thai). Retrieved 18 January 2020.
  34. ↑ "Acura Set to Launch More Powerful, Technologically Advanced and Luxuriously Equipped 2016 Acura ILX Sport Sedan" (Press release). Los Angeles, CA: Acura. 20 November 2014. Archived from the original on 27 September 2020. Retrieved 23 May 2016.
  35. ↑ "2017 ILX Specifications & Features". Acura. 12 April 2016. Archived from the original on 27 September 2020. Retrieved 23 May 2016.
  36. ↑ Team, The Drifted (29 March 2024). "Ultimate Honda K24 Guide – Everything You Need To Know". Drifted.com. Retrieved 11 September 2024.
  37. ↑ "The Bulletproof Honda K-Series: A Legacy of Reliability and Performanc". Authentic Autoclub. Retrieved 11 September 2024.
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