Honda K-series Engine Specs Information

The Honda K series car 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, distributor-less 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-series & F-series engines, as opposed to the FRM cylinders found in the H-series and newer F series engines found only in the Honda S2000.

Similar to B series, K-Series car engine has 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 212mm where K23 and K24 block has a deck height of 231.5mm.

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 rpm, 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.

K20

K20A

Honda K20A

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2001–2011
Configuration L4
Displacement2.0 L; 121.9 cu in (1,998 cc)
Cylinder bore 86 mm (3.386 in)
Piston stroke 86 mm (3.386 in)
Cylinder head alloy NSH 14
Valvetrain DOHC
Compression ratio See left for specific application.
Combustion
Fuel systemFuel injection
Management ECU
Fuel type Petrol
Cooling system
Water-cooled
Piston Oil Squirters (K20A)
K20A2 001–2006 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 RPM8600 RPM5800 RPMRRC
K20A1 2001–2006 Honda Stream (RN3, FWD)9.7:1156 hp (116 kW) @ 6500 RPM139 lb⋅ft (188 N⋅m) @ 4000 RPM6800 RPM
2001–2006 Honda Stream (RN4, AWD)9.8:1158 hp (118 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM
K20A2 2001–2006 Honda Civic Type R (EDM)11.0:1197 hp (147 kW) @ 7400 RPM139 lb⋅ft (188 N⋅m) @ 5900 RPM7900 RPM8250 RPM5800 RPM
2002–2004 Acura RSX Type S11.0:1200 hp (150 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 (150 kW) @ 7400 RPM142 lb⋅ft (193 N⋅m) @ 6000 RPM7800 RPM8100 RPM5800 RPM
K20A3 2002–2006 Acura RSX 9.8:1160 hp (120 kW) @ 6500 RPM141 lb⋅ft (191 N⋅m) @ 4000 RPM6800 RPM2200 RPM
2002–2005 Honda Civic Si 9.8:1160 hp (120 kW) @ 6500 RPM132 lb⋅ft (179 N⋅m) @ 4000 RPM6800 RPM2300 RPMPRB
2002–2005 Honda Civic SiR 9.8:1160 hp (120 kW) @ 6500 RPM132 lb⋅ft (179 N⋅m) @ 4000 RPM6800 RPM2300 RPM
2002–2005 Honda Civic Type S 9.8:1160 hp (120 kW) @ 6500 RPM132 lb⋅ft (179 N⋅m) @ 4000 RPM6800 RPM2300 RPM
2003–2006 Honda Civic 2.0 i-VTEC(SEA)9.8:1155 hp (116 kW) @ 6500 RPM131 lb⋅ft (177 N⋅m) @ 5000 RPM6800 RPM
K20A4 2002–2006 Honda CR-V (SEA)9.8:1150 hp (110 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM
2003–2007 Honda Accord 158 hp (118 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM
K20A6 2003–2006 Honda Accord (EDM)9.8:1155 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM2500 RPM
2003–2006 Honda Accord (ADM)9.8:1155 hp (116 kW) @ 6500 RPM140 lb⋅ft (190 N⋅m) @ 4000 RPM6800 RPM2500 RPM

Additional Engine Specifics

Chromoly Flywheel, Higher-Tensile Strength Connecting Rods, High Compression Pistons, Stiffer Intake Valve Springs and Exhaust Valve Springs, Higher-lift Hollow Camshafts with more duration, and 2007-2011 Cylinder Head Intake Port Surface Polishing and Exhaust Surface Port Polishing used in NSX-R.[3] The JDM K20A Type R engine block would be removed from production assembly line by an experienced Honda engine technician to torque the connecting rod bolts to factory specification by hand using micrometer to measure connecting rod bolt stretching. Then the JDM K20A Type R engine block would be returned to the production assembly line to complete the engine building process.

K20A (Eco Performance Engine) Japan only

Similar to K20A3 and K20A1

Found in:
2002-2005 Honda Integra-(Type S)
2000-2005 Honda Stream S (RN3) (Front Drive)
2000-2005 Honda Stream S (RN4) (All Wheel Drive)
2005-2010 Honda Edix (Front Drive and All Wheel Drive)
2005-2008 Honda Accord Sedan (Front Drive and All Wheel Drive)
2005-2008 Honda Accord Wagon (Front Drive Only)
2006-2010 Honda Civic Sedan (GL)
DOHC i-VTEC
Power and Torque can vary by the Compression Ratio, Intake manifold, and Exhaust manifold
Power: 155 hp@6500rpm ; 158 hp@6500rpm
Torque: 138 lb-ft@4000rpm ; 140 lb-ft@4000rpm
Redline 7200rpm
Compression: 9.7:1 ; 9.8:1
Bore X Stroke: 86mm x 86mm
Displacement: 1998cc

K20B

Honda K20B

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2004–2006
Configuration L4
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
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
Injection Pressure: 10 megapascals (99 atm)
Center Fuel Injection with swirl guide
Air-Fuel Ratio:
Normal driving cycle: 65:1 (ultra-lean combustion)
Acceleration/High load driving cycle: 14.7:1 (Stoichiometric)
Deep Piston Cavity formed in top of Pistons
Application: 2004–2006 Honda Stream Absolute

K20C

Honda K20C

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2015-present
Configuration L4
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)
Valvetrain DOHC
Compression ratio
Combustion
Turbocharger 1 (K20C1)
Fuel system Direct fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Output

K20C1 2015–present Honda Civic Type R (EDM)9.8:1306 hp (228 kW) @ 6500 RPM295 lb⋅ft (400 N⋅m) @ 2500 RPM7000 RPM7000 RPM
K20C2 2016–present Honda Civic LX (USDM)10.8:1158 hp (118 kW) @ 6500 RPM138 lb⋅ft (187 N⋅m) @ 4200 RPM6800 RPM6100 RPM
6500 RPM (with CVT)
2016–present United States Formula 4 Championship10.8:1158 hp (118 kW) @ 6500 RPM138 lb⋅ft (187 N⋅m) @ 4200 RPM6800 RPM6100 RPM
K20C4 2018–present Honda Accord 9.8:1252 hp (188 kW)273 lb⋅ft (370 N⋅m) @ 1500-4000 RPM6800 RPM
K20C3 2016–present Honda Avancier (China)10.8:1272 hp (203 kW) @ 6500 RPM273 lb⋅ft (370 N⋅m) @ 4200 RPM6100 RPM

Additional Engine Specifics

Earth Dreams
K20C1: First Honda Type R engine to be built in the USA at the Honda Anna Engine Plant in Anna, Ohio.

K20Z

Honda K20Z

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2005–2015
Configuration L4
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
Compression ratio
Combustion
Fuel system Fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Output

K20Z1 2005–2006 Acura RSX Type-S 11.0:1210 hp (160 kW) @ 7800 RPM[a]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
K20Z2 2006–2011 Acura CSX 9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPM
2006–2011 Honda Civic (JDM)9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPM
2006–2015 Honda Accord (EDM)9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPM
2006–2010 Honda Civic 2.0 S / S-L(PHDM)9.8:1153 hp (114 kW) @ 6000 RPM139 lb⋅ft (188 N⋅m) @ 4500 RPM6800 RPM
K20Z3 2006–2011 Honda Civic Si 11.0:1197 hp (147 kW) @ 7800 RPM[b]139 lb⋅ft (188 N⋅m) @ 6200 RPM[b]8000 RPM8300 RPM5800 RPMRBC
2007–2010 Acura CSX Type-S 11.0:1197 hp (147 kW) @ 7800 RPM[b]139 lb⋅ft (188 N⋅m) @ 6200 RPM[b]8000 RPM8300 RPM5800 RPM
K20Z4 2007–2010 Honda Civic Type R (EDM)11.0:1201 hp (150 kW) @ 7800 RPM142 lb⋅ft (193 N⋅m) @ 6800 RPM8000 RPM8200 RPM5400 RPMRSP

Jump up^ 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.
^ Jump up to:a b c d SAE net Rev 8/04
Jump up^ The RBC is not a variable-length intake.

Additional Engine Specifics

K20Z3 (as fitted to Ariel's Atom 3.5)

It has an aluminum block with an aluminum head. The K20Z3 has traditional performance VTEC cams on the intake and the exhaust cams. Variable valve timing technology is included on the intake but not the exhaust cams. The added valve timing control corresponds to the added "i" in i-VTEC.

K23

K23A1

Honda K23A1

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2007–2012
Configuration L4
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)
Valvetrain DOHC
Compression ratio 8.8:1
Combustion
Turbocharger 1
Fuel system Fuel injection
Management ECU
Fuel type Gasoline

Output

Power output 240 hp (180 kW) @ 6000 RPM
Torque output 260 lb⋅ft (350 N⋅m) @ 4500 RPM
This version of the K engine uses a Mitsubishi TD04HL-15T turbocharger with a dual path turbine housing, optimizing low end response while allowing better high end flow. Maximum boost pressure is 13.5psi. The engine includes iVTEC and VTC technologies and comes mated to a version of Honda's 5-speed automatic with SH-AWD (note: SH-AWD was standard from 2007-2009 and optional from 2010-2012).
Applications
Application Redline Rev limiter i-VTEC
engagement Intake Manifold
2007–2012 Acura RDX6800 RPM6900 RPM2500 RPM

K24

K24A

Honda K24A

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2001–2012
Configuration L4
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
Compression ratio
Combustion
Fuel system Fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Output

K24A1 2002–2006 Honda CR-V9.6:1160 hp (120 kW) @ 6000 RPM[a]162 lb⋅ft (220 N⋅m) @ 3600 RPM[b]6500 RPMRAA
K24A2 2002–2008 Honda Accord Type-S (JDM) 10.5:1200 hp; 150 kW @ 6800 RPM171 lb⋅ft (232 N⋅m) @ 4500 RPM7100 RPM 6000 RPM
2003–2008 Honda Odyssey Absolute10.5:1200 hp; 150 kW @ 6800 RPM171 lb⋅ft (232 N⋅m) @ 4500 RPM7100 RPM[c]6000 RPM
2004–2005 Acura TSX 10.5:1200 hp; 150 kW @ 6800 RPM166 lb⋅ft (225 N⋅m) @ 4500 RPM7100 RPM6000 RPMRBB
2006–2008 Acura TSX 10.5:1205 hp (153 kW) @ 7000 RPM170.5 lb⋅ft (231 N⋅m) @ 4500 RPM7100 RPM6000 RPMRBB
K24A3 2003–2007 Honda Accord (JDM/EDM)10.5:1190 hp (140 kW) @ 6800 RPM164 lb⋅ft (223 N⋅m) @ 4500 RPM7200 RPM7300 RPM6000 RPMRBB
2003–2007 Honda Accord Euro (AUDM/NZDM)10.5:1190 hp (140 kW) @ 6800 RPM164 lb⋅ft (223 N⋅m) @ 4500 RPM7200 RPM7300 RPM6000 RPMRBB
K24A4 2003–2005 Honda Accord (USDM)9.7:1160 hp (120 kW) @ 5500 RPM161 lb⋅ft (218 N⋅m) @ 4500 RPM6800 RPM2400 RPMRAA
2003–2006 Honda Element 9.7:1160 hp (120 kW) @ 5500 RPM161 lb⋅ft (218 N⋅m) @ 4500 RPM6800 RPMRAA
K24A8 2006–2007 Honda Accord (USDM)9.7:1166 hp (124 kW) @ 5800 RPM160 lb⋅ft (220 N⋅m) @ 4000 RPM6500 RPM2400 RPM RAA
2007–2011 Honda Element 9.7:1166 hp (124 kW) @ 5800 RPM 161 lb⋅ft (218 N⋅m) @ 4000 RPM6800 RPM2400 RPM RAA
2008–2014 Honda Odyssey (JDM) 10.5:1180 hp (130 kW)161 lb⋅ft (218 N⋅m)

Jump up^ Per the new SAE regulations, power is 156 hp (116 kW) @ 5900 RPM
Jump up^ Per the new SAE regulations, torque is 160 lb⋅ft (220 N⋅m) @ 3600 RPM
^ Jump up to:a b
Automatic: 7100 RPM
Sequential Sport shift: 7300 RPM
Manual: 7600 RPM
^ Jump up to:a b While in fuel efficiency mode. 4500 RPM in performance mode.

Additional Engine Specifics

K24A2 (2006-2008 Acura TSX)

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

Other

Stronger connecting rods
New crankshaft with more counterbalance weight
Revised pistons with more valve-piston clearance
Under-piston oil squirters

K24W (Earth Dreams)

K24V & K24W

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2013–present
Configuration L4
Displacement2.4 L; 143.8 cu in (2,356 cc)
Cylinder bore 87 mm (3.425 in)
Piston stroke 99.1 mm (3.902 in)
Valvetrain DOHC
Compression ratio
Combustion
Fuel system Fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Dimensions

Length 30cm

Direct Injection, iVTEC (intake camshaft & valvetrain)

This section previously inaccurately suggested that the 2016-2017+ Acura ILX engine K24V7 and the K24W7 of the Acura TLX are the same engine, and although they may be very closely related, even sharing identical internal architecture and components, they actually are different engines with different Honda internal engine code designations. This may be strictly due to different transmissions, as the 2016-2017+ ILX uses its own specific 8-speed dual-clutch auto with a torque converter, as well as different exhaust, intake, and accessory packaging due to their differing chassis [the ILX sharing its basic architecture with the 2013 - 2016 generation Civic].

Output

K24W2013–2017 Honda Accord(USDM)11.1:1185 hp (138 kW) @ 6400 RPM181 lb⋅ft (245 N⋅m) @ 3900 RPM6800 RPM4800 RPM

2015–present Honda CR-V(USDM)11.1:1185 hp (138 kW) @ 6400 RPM181 lb⋅ft (245 N⋅m) @ 4500 RPM6800 RPM4800 RPM

K24W42013–present Honda Accord(Thailand/Malaysia)10.1:1174 hp (130 kW) @ 6200 RPM166 lb⋅ft (225 N⋅m) @ 4000 RPM6600 RPM

2014–present Honda Odyssey (AUDM)10.1:1174 hp (130 kW) @ 6200 RPM166 lb⋅ft (225 N⋅m) @ 4000 RPM6600 RPM

K24V72016–present Acura ILX[5][6]11.6:1201 hp (150 kW) @ 6800 RPM180 lb⋅ft (240 N⋅m) @ 3800 RPM7000 RPM5000 RPM +/-100 RPM

K24W72015–present Acura TLX11.6:1206 hp (154 kW) @ 6800 RPM182 lb⋅ft (247 N⋅m) @ 3900 RPM7000 RPM5000 RPM +/-100 RPM

K24Y

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2012–present
Configuration L4
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
Compression ratio
Combustion
Fuel system Fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Output

K24Y12012–present Honda CR-V (Thailand)10.5:1170 hp (130 kW) @ 6000 RPM160 lb⋅ft (220 N⋅m) @ 4300 RPM6500 RPM

K24Y22012–2015 Honda Crosstour10.0:1192 hp (143 kW) @ 7000 RPM162 lb⋅ft (220 N⋅m) @ 4400 RPM7100 RPM

K24Z

Overview

Manufacturer Honda Motor Co., Ltd.
Production 2007–2015
Configuration L4
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)
Valve train DOHC
Compression ratio
Combustion
Fuel system Fuel injection
Management ECU
Fuel type Gasoline
Cooling system Water-cooled

Output

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)10.5:1177 hp (132 kW) @ 6500 RPM165 lb⋅ft (224 N⋅m) @ 4300 RPM6800 RPM

2016–present Proton Perdana10.5:1177 hp (132 kW) @ 6500 RPM165 lb⋅ft (224 N⋅m) @ 4300 RPM6800 RPM

K24Z32008–2012 Honda Accord LX-S/EX/EX-L (USDM)10.7:1190 hp (140 kW) @ 7000 RPM162 lb⋅ft (220 N⋅m) @ 4400 RPM7100 RPM

2009–2014 Acura TSX[7]11.0:1201 hp (150 kW) @ 7000 RPM172 lb⋅ft (233 N⋅m) @ 4300 RPM7100 RPM5100 RPM

2008–2015 Honda Accord (CP2, CS1)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 Spirior10.5:1184 hp (137 kW) @ 6500 RPM164 lb⋅ft (222 N⋅m) @ 4300 RPM6500 RPM

K24Z62010–2011 Honda CR-V (USDM)10.5:1180 hp (130 kW) @ 6800 RPM161 lb⋅ft (218 N⋅m) @ 4400 RPM7100 RPM7200 RPM

2012–2014 Honda CR-V (USDM)10.0:1185 hp (138 kW) @ 7000 RPM163 lb⋅ft (221 N⋅m) @ 4400 RPM7000 RPM

K24Z72012–2013 Honda Civic Si11.0:1201 hp (150 kW) @ 7000 RPM170 lb⋅ft (230 N⋅m) @ 4400 RPM7000 RPM7200 RPM

2014–2015 Honda Civic Si11.0:1205 hp (153 kW) @ 7000 RPM174 lb⋅ft (236 N⋅m) @ 4400 RPM7000 RPM7200 RPM

2013–2015 Acura ILX11.0:1201 hp (150 kW) @ 7000 RPM170 lb⋅ft (230 N⋅m) @ 4400 RPM7100 RPM7200 RPM

Credit: https://en.wikipedia.org/w/index.php?title=Honda_K_engine&action=history

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Honda K-series Engine Specs Information

K20