Honda K20 type engine

The K20-type 2.0L engine (Kgata engine) is an in-line 4-cylinder gasoline engine for medium-sized vehicles manufactured by Honda Motor Co., Ltd.

History 

The 2,000cc K20A was adopted for the first time in the stream announced on October 26, 2000. The high-tuned K20A was adopted for the second-generation Integra Type R announced on July 2, 2001. The Stream Absolute announced on November 27, 2003 adopted the 2,000cc gasoline direct injection engine I-VTEC I K20B. The K20C1, which combines VTEC and a turbocharger, was adopted for the Civic Type R released in 2015.

i-VTEC K20A

An in -line 4-cylinder engine that is the successor to the B, F, and H engines. For the next generation, Honda has developed an engine that aims to achieve a high level of fusion with the enjoyment of driving (improved power performance) while simultaneously achieving "reduction of CO2 (improved fuel efficiency)" and "cleaner exhaust “. was called the "i-series", and the K type was announced as the first model. After the J model, the direction of rotation of the engine was changed to the opposite from the conventional B and F models, and it was changed to the same direction as other companies.

All models have a swing arm type DOHC that drives two intake and exhaust valves, a total of 16 valves. The variable valve timing and lift mechanism " i-VTEC " that is installed has one of the intake valves almost stopped at low speed, and the phase of the intake side camshaft is changed to adjust the overlap amount "VTC (Variable Timing Control)” is combined. The swing arm uses a roller mechanism to reduce friction on the sliding part.

The cylinder block was made of die -cast aluminium, and a lower block structure was adopted to increase the support rigidity of the crankshaft, and a balancer was installed to reduce the vibration of the secondary engine. It has the same 94mm bore pitch as the F model, but the engine length is kept down by adopting a timing chain and auxiliary serpentine drive.

PGM-FI is a multi-point type with an injector attached to each cylinder port of the intake manifold. The intake manifold is equipped with a variable intake device, and through cooperative control with i-VTEC, both torque in the medium and low speed range and output in the high-speed range are achieved. By installing an exhaust manifold at the rear of the engine, the distance between the engine and the three-way catalyst is reduced, enabling early purification of exhaust gas even when the engine is cold. Since 2008, there is no exhaust manifold, adjacent exhaust ports are gathered in the cylinder head, and a three-way catalyst is installed immediately after that, and an air flow meter is installed on the intake side to further reduce exhaust gas. Purification is planned.

R-Spec K20A

 Developed for Type R (Integra Type R, Civic Type R), each part has specifications that emphasize high rotation and high output. The variable valve timing and lift mechanism changes valve timing and lift at both low and high-speed ranges. Eliminates the variable intake system and adopts a single-pipe, equal-length intake manifold that improves the intake inertia effect, and uses fine-grained sand for the intake and exhaust ports of the cylinder head to achieve high-precision shapes and smooth wall surfaces. rice field. In the Japanese specification, the balancer is also abolished to reduce friction.

i-VTEC I K20B

The fuel supply method of the standard i-VTEC specification is direct injection into the cylinder (direct injection), resulting in low fuel consumption, clean exhaust gas and high output. By adopting a "centre injection" injector in the centre of the ceiling of the combustion chamber, the engine achieves ultra-lean combustion with an air-fuel ratio of 65:1, while meeting the 2005 exhaust gas standard of 50% reduction.

K20C A 2.0L engine produced at the Anna engine plant in Ohio. There are a turbo model and a naturally aspirated model, and only the turbo model adopts direct injection. VTC is installed on both the intake and exhaust, and VTEC is installed only on the exhaust. The turbo model adopted a small monoscroll turbo.

Variations 

K20A 

Standard specifications

• Displacement: 1,998cc
• Inner Diameter x Stroke: 86.0mm x 86.0mm
• Fuel supply device type: Electronically controlled fuel injection type (PGM-FI)
• Reference specs (FD1 Civic)
• Maximum output: 114 kW (155 PS) / 6,000 rpm
• Maximum torque: 188 N m (19.2 kg m) / 4,500 rpm
• Ariel Atom (Engine provided)

R-Spec

• Valve mechanism: DOHC i-VTEC chain drive intake 2 exhaust 2
• Displacement: 1,998cc
• Inner Diameter x Stroke: 86.0mm x 86.0mm
• Fuel supply device type: Electronically controlled fuel injection type (PGM-FI)
• Reference specs (FD2 Civic Type R)
• Maximum output: 165kW (225PS)/8,000rpm
• Maximum torque: 215 N m (21.9 kg m) / 6,100 rpm
• VEMAC RD200 (engine provided)
• Ariel Atom (Engine provided)

K20A

• Civic
• Civic Type R (EP3/FD2)
• Stream (RN3/4)
• Integra (DC5)
• Integra Type R (DC5)
• Acura RSX (DC5)
• Step Wagon (RF3/4/5/6/RG1/2)
• Accord (CL7/8)
• Accord Euro R (CL7)
• Accord Wagon (CM1)
• Edix (BE3/4)
• Ariel Ariel Atom

K20A Type R

• 2001-2005 Honda Civic Type-R (EP3) JDM Power: 215 hp at 8,000 rpm
• 2001-2006 Honda Integra Type-R (DC5) JDM Power: 215 hp at 8,000 rpm
• 2002-2006 Honda Accord Euro-R JDM Power: 2L from 220 hp at 8000 rpm
• 2016: Gibson GH-20: 255 hp at 8,200 rpm 

K20A2 

• 2001-2005 Honda Civic Type-R (EP3) Europe Power: 200 hp @ 7,400 rpm
• 2002-2004 Acura RSX Type-S (DC5) USA / CAN Power: 200 hp @ 7,400 rpm

K20A3 

• 2002-2005 Honda Civic Si (USA) / Honda Civic SIR (Canadian) (EP3) Power: 160 hp at 6,500 rpm
• 2002-2006 Acura RSX USA / CAN Horsepower: 155 hp @ 6,500 rpm

K20C 

Standard specifications

• Displacement: 1,995cc
• Compression ratio: 10.8
• Inner Diameter x Stroke: 86.0mm x 85.9mm
• Fuel supply device type: Electronically controlled fuel injection type (PGM-FI)
• Reference specs (FL1 Civic North American specs)
• Maximum output: 118kW (160PS)/6,500rpm
• Maximum torque: 187N・m (19.0kgf・m)/4,200rpm

Turbo spec

• Displacement: 1,995cc
• Compression ratio: 9.8
• Inner Diameter x Stroke: 86.0mm x 85.9mm
• Fuel supply system type: Electronically controlled fuel injection (PGM-FI) direct injection
• Reference specs (FK8 Civic Type R)
• Maximum output: 228 kW (320 PS) / 6,500 rpm
• Maximum torque: 400N・m (40.8kgf・m)/2,500rpm－4,500rpm
• Avancia/UR-V
• Accord (North American spec)
• Acura RDX
• Acura TLX

K20B 

• Displacement: 1,998cc
• Inner Diameter x Stroke: 86.0mm x 86.0mm
• Fuel supply system type: Electronically controlled fuel injection type (PGM-FI direct injection)
• Reference specs (RN5 Stream Absolute)
• Maximum output: 115kW (156PS)/6,300rpm
• Maximum torque: 188 N m (19.2 kg m) / 4,600 rpm

K20B

• Stream Absolute (RN5)

K20Z 

Standard specifications

• Displacement: 1,998cc
• Inner Diameter x Stroke: 86.0mm x 86.0mm
• Compression ratio: 9.6
• Fuel supply device type: Electronically controlled fuel injection type (PGM-FI)
• Reference specs (FA2 CSX)
• Maximum output: 115kW (157PS)/6,000rpm
• Maximum torque: 188 N m (19.2 kg m) / 4,500 rpm

R-Spec

• Valve mechanism: DOHC i-VTEC chain drive intake 2 exhaust 2
• Displacement: 1,998cc
• Inner Diameter x Stroke: 86.0mm x 86.0mm
• Fuel supply device type: Electronically controlled fuel injection type (PGM-FI)
• Reference specs (FN2 Civic Type R)
• Maximum output: 148 kW (201 PS) / 7,800 rpm
• Maximum torque: 193 N m (19.7 kg m) / 5,600 rpm

K20Z

• Civic (FD/FN/FA) 
• Civic Coupe (FG2)
• Civic Type R (FN2)
• Acura CSX (FA2)

K20Z1 

• 2005-2006 Acura RSX-S
• Power: 210 hp at 7,800 rpm

K20Z2 

• 2006- Acura CSX (Canada) Power: 155 hp @ 6,000 rpm
• 2006- Honda Civic (JDM) Power: 155 hp @ 6,000 rpm
• 2006- Honda Accord Sport (Europe) Power: 155 hp @ 6,000 rpm

K20Z3 

• 2007+ Honda Civic Type-R (FN2) Europe Power: 201 hp @ 8,000 rpm
• 2006+ Honda Civic Si Power: 197 hp at 7,800 rpm
• 2007 Acura CSX Type-S Power: 197 hp at 7,800 rpm