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Honda R engine
Overview
Manufacturer	Honda Motor Co Ltd
Production	2006–present
Layout
Configuration	Naturally aspiratedStraight-4
Displacement	1.6–2.0 L; 97.3–121.9 cu in (1,595–1,997 cc)
Cylinder bore	81 mm (3.19 in)
Piston stroke	77.4 mm (3.05 in) 87.3 mm (3.44 in) 96.9 mm (3.81 in)
Cylinder block material	Aluminum alloy
Cylinder head material	Aluminum alloy
Valvetrain	SOHC4 valves x cyl. withi-VTEC DOHC4 valves x cyl. withi-VTEC (LF Hybrid engine)
Compression ratio	10.5:1-10.7:1
RPM range
Max. engine speed	6800
Combustion
Fuel system	PGM-FI
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	125–156 PS (92–115 kW; 123–154 bhp)
Torque output	15.4–19.4 kg⋅m (151–190 N⋅m; 111–140 lb⋅ft)

TheHonda R engine is aninline-four engine launched in 2006 for theHonda Civic (non-Si). It isfuel injected, has an aluminum-alloycylinder block andcylinder head, is aSOHC 16-valve design (four valves per cylinder) and utilizes Honda'si-VTEC system. The R series engine has acompression ratio of 10.5:1, features a "drive by wire" throttle system which is computer controlled to reducepumping losses and create a smooth torque curve.

The engine uses many advanced technologies to improve fuel economy and reduce friction. Piston rings are given an ion plating and weight is reduced with plastic and aluminum parts andvariable length intake manifolds that maintain ram air at a wide RPM range. The engine also features piston cooling jets, previously available only on high performance engines, and in the ninth-generation 1.8L Civic (2012-2015) the pistons are treated withmolybdenum disulfide applied in a polka-dot pattern. The automatic transmission model is rated atCalifornia Air Resources Board (CARB) ULEV-2 (Ultra Low Emissions Vehicle) with fuel economy 25 mpg_‑US (9.4 L/100 km; 30 mpg_‑imp) city, and 36 mpg_‑US (6.5 L/100 km; 43 mpg_‑imp) highway. It also uses the same computer (engine control unit) controlleddistributorless coil-on-plugignition as the HondaK-series engines. As of September 2019, the R series engines were only offered outside of Japan.

The R16 engines all have a bore and stroke of 81 mm × 77.4 mm (3.19 in × 3.05 in), for an overall displacement of 1.6 L (1,595 cc; 97.33 cu in).

• Found in:
  • 2006 Honda Civic (Singapore, Egypt, Turkey Market – FA1/FD series)
  • 2012 Honda Civic (Singapore, Egypt, Turkey Market – FB series)
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.5:1
    • Power: 125 PS (92 kW; 123 bhp) at 6,500 rpm
    • Torque: 15.4 kg⋅m (151 N⋅m; 111 lb⋅ft) at 4,300 rpm
    • Transmission: 5-speed
    • Redline: 6800 rpm

• Found in:
  • 2016 Honda Civic (Mauritius, Singapore, Egypt, Turkey, Cyprus, South Africa, Ukraine and Brunei – FC series)
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.7:1
    • Power: 125 PS (92 kW; 123 bhp) at 6,500 rpm
    • Torque: 15.6 kg⋅m (153 N⋅m; 113 lb⋅ft) at 4,300 rpm
    • Transmission: CVT-7, manual-5
    • Redline: 6700 rpm

The R18 engines have a bore and stroke of 81 mm × 87.3 mm (3.19 in × 3.44 in), for an overall displacement of 1.8 L (1,799 cc; 109.8 cu in).

• Found in:
  • 2006–2011 Honda Civic (South Africa/Thailand/Malaysia/Indonesia/Philippines/Taiwan/Japan/Indian-market FD1, Brazil, American/Canadian-market FA1 & FG1)
  • 2007–2009Honda FR-V (European-market BE1)
  • 2008–2015Honda City
  • 2007–2014Honda Stream
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.5:1
    • Power: 141 PS (104 kW; 139 bhp) at 6300 rpm (Japanese Spec)
    • 132 PS (97 kW; 130 bhp) on Indian variant to use lower octane fuel
    • Torque: 17.7 kg⋅m (174 N⋅m; 128 lb⋅ft) at 4,300 rpm
    • Fuel Cut Off: 7150 rpm
    • Redline: 6800 rpm

• Found in:
  • 2006–2011Honda Civic (European-market FN1 & FK2)
    • Compression: 10.5:1
    • Power: 140 PS (103 kW; 138 hp) at 6,300 rpm
    • Torque: 17.7 kg⋅m (174 N⋅m; 128 lb⋅ft) at 4,300 rpm
    • cruising/economy happens during VTEC under cruising load only.
    • Redline: 6800 rpm
    • Fuel Cutoff : 7150 rpm

• Found in:
  • 2006–2011 Honda Civic (Brazil)
  • Local Fuel optimization (FlexFuel - Ethanol or Gasoline)
  • Power: 140 PS (103 kW; 138 hp)
  • SOHC i-VTEC (ECO Version)
  • Redline: 6800 rpm

• Found in:
  • 2012–2015Honda Civic (FB2, FG3)
  • 2016–2020Honda Civic (FC6, FK5)
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.6:1
    • Power: 145 PS (107 kW; 143 hp) at 6,500 rpm
    • Torque: 17.8 kg⋅m (175 N⋅m; 129 lb⋅ft) at 4,300 rpm
    • Redline: 6800
    • Fuel cut off: 7100
    • Single valve mode at low RPMs
    • iVTEC engages economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on low power cam profile by default.

• Found in:
  • 2012–2017Honda Civic (European-market FK2)
    • Compression: 10.6:1
    • Power: 145 PS (107 kW; 143 hp) at 6,500 rpm
    • Torque: 17.8 kg⋅m (175 N⋅m; 129 lb⋅ft) at 4,300 rpm
    • Redline: 6800 rpm
    • Fuel cut off : 7100 rpm
    • cruising/economy happens during VTEC under cruising load only.
    • Balancer Shaft on this R18.

• Found in:
  • 2013–2017Honda Jade
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.6:1
    • Power: 141 PS (104 kW; 139 hp) at 6,500 rpm
    • Torque: 17.7 kg⋅m (174 N⋅m; 128 lb⋅ft) at 4,300 rpm

• Found in:
  • 2016–2022Honda HR-V
    • Compression: 10.6:1
    • Power: 143 PS (105 kW; 141 hp) at 6,500 rpm
    • Torque: 17.7 kg⋅m (174 N⋅m; 128 lb⋅ft) at 4,300 rpm

• Found in:
  • 2016–2018Honda HR-V (Brazil)

• Found in:
  • 2014–2022Honda HR-V (Thailand and Indonesia)^[1]
    • Compression: 10.6:1
    • Power: 143 PS (105 kW; 141 hp) at 6,500 rpm
    • Torque: 17.5 kg⋅m (172 N⋅m; 127 lb⋅ft) at 4,300 rpm

The R20 engines all have a bore and stroke of 81 mm × 96.9 mm (3.19 in × 3.81 in), for an overall displacement of 2.0 L (1,997 cc; 121.9 cu in).

• Found in:
  • 2007–2011Honda CR-V (RE1, RE2)
  • 2008 –Honda Stream (RSZ)
  • 2013–2015Acura ILX (DE1)
    • Compression: 10.5:1
    • Power: 152 PS (112 kW; 150 bhp) at 6,200 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,200 rpm
    • Redline: 6800 rpm
    • Fuel cut off: 7100 rpm
    • SOHC run by timing chain
    • iVTEC engages economy cam profile from 1000 rpm to 3500 rpm, under light engine load. Engine runs on power cam profile by default

• Found in:
  • 2007–2011Honda CR-V (RE5)
    • Compression: 10.5:1
    • Power: 152 PS (112 kW; 150 bhp) at 6,200 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,200 rpm

• Found in:
  • 2008–2012Honda Accord (CP1) (156 hp)
  • 2008–2015Honda Accord (CU1/CN1/CW1) (156 hp)
  • 2013–2020Proton Perdana (CP3) (156 hp)
    • Compression: 10.5:1
    • Power: 157 PS (115 kW; 155 bhp) at 6,300 rpm
    • Torque: 19.2 kg⋅m (188 N⋅m; 139 lb⋅ft) at 4,300 rpm

• Found in:
  • 2012–2015Honda Civic (Southeast Asian FB3)
    • Compression: 10.6:1
    • Power: 157 PS (115 kW; 155 bhp) at 6,500 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,300 rpm

• Found in:
  • 2012–2016 –Honda CR-V (RM1, RM2)
    • Compression: 10.6:1
    • Power: 157 PS (115 kW; 155 bhp) at 6,500 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,300 rpm

• Found in:
  • 2012–2016 –Honda CR-V (RE5)
    • Compression: 10.6:1
    • Power: 157 PS (115 kW; 155 bhp) at 6,500 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,300 rpm

• Found in:
  • 2012–2015Honda Civic (FB3)
    • SOHC iVTEC (Chain driven cam)
    • Compression: 10.6:1
    • Power: 155 PS (114 kW; 153 bhp) at 6,500 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft) at 4,300 rpm

• Found in:
  • 2013–2017Honda Accord (CR1)
    • Compression: 10.6:1
    • Power: 155 PS (114 kW; 153 bhp) at 6,500 rpm
    • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft)

This version includes i-MMD ("Intelligent Multi Mode Drive").

• DOHC 16 valve
  • Displacement: 2.0 L; 121.6 cu in (1,993 cc)
  • Bore x Stroke: 81 mm × 96.7 mm (3.19 in × 3.81 in)
  • Power (Engine): 145 PS (107 kW; 143 hp) / 6,200 rpm
  • Torque (Engine): 175 N⋅m (129 lb⋅ft) / 3,500 rpm
  • Power (Motor): 184 PS (135 kW; 181 hp) / 5,000-6,000 rpm
  • Torque (Motor): 315 N⋅m (232 lb⋅ft) / 0–2,000 rpm
  • Power (Combined): 215 PS (158 kW; 212 hp) / 6,200 rpm
• Honda Odyssey Hybrid/e:HEV (Japan, RC4)^[2]
• Honda Stepwgn Hybrid/e:HEV (Japan, RP5)^[3]
• Honda Accord Hybrid (N. America) (2014 - 2022)^[4]
• Honda CR-V Hybrid (N. America) (2020 - 2022)^[4]
• Honda Spirior Hybrid (China) (2017)^[5]

This version includes i-MMD ("Intelligent Multi Mode Drive").

• DOHC 16 valve
  • Displacement: 2.0 L; 121.6 cu in (1,993 cc)
  • Bore x Stroke: 81 mm × 96.7 mm (3.19 in × 3.81 in)
  • Power (Engine): 145 PS (107 kW; 143 hp) / 6,200 rpm
  • Torque (Engine): 175 N⋅m (129 lb⋅ft) / 3,500 rpm
  • Power (Motor): 184 PS (135 kW; 181 hp) / 5,000-6,000 rpm
  • Torque (Motor): 315 N⋅m (232 lb⋅ft) / 0–2,000 rpm
  • Power (Combined): 215 PS (158 kW; 212 hp) / 6,200 rpm
• Honda Accord Hybrid (Thailand, CV3)^[6]
• Honda Odyssey e:HEV Absolute (International, RC4)

This version includes i-MMD ("Intelligent Multi Mode Drive").

• DOHC 16 valve
  • Displacement: 2.0 L; 121.6 cu in (1,993 cc)
  • Bore x Stroke: 81 mm × 96.7 mm (3.19 in × 3.81 in)
  • Power (Engine): 145 PS (107 kW; 143 hp) / 6,200 rpm
  • Torque (Engine): 175 N⋅m (129 lb⋅ft) / 3,500 rpm
  • Power (Motor): 184 PS (135 kW; 181 hp) / 5,000-6,000 rpm
  • Torque (Motor): 315 N⋅m (232 lb⋅ft) / 0–2,000 rpm
  • Power (Combined): 215 PS (158 kW; 212 hp) / 6,200 rpm
• Honda CR-V Sport Hybrid e+ (China)

This version includes i-MMD ("Intelligent Multi Mode Drive").

• DOHC 16 valve
  • Displacement: 2.0 L; 121.6 cu in (1,993 cc)
  • Bore x Stroke: 81 mm × 96.7 mm (3.19 in × 3.81 in)
  • Power (Engine): 145 PS (107 kW; 143 hp) / 6,200 rpm
  • Torque (Engine): 175 N⋅m (129 lb⋅ft) / 3,500 rpm
  • Power (Motor): 184 PS (135 kW; 181 hp) / 5,000–6,000 rpm
  • Torque (Motor): 315 N⋅m (232 lb⋅ft) / 0–2,000 rpm
  • Power (Combined): 215 PS (158 kW; 212 hp) / 6,200 rpm
• Honda Accord Hybrid/e:HEV (Japan, CV3)^[7]
• Honda CR-V Hybrid/e:HEV (Japan, RT5–RT6)^[8]
• Honda Odyssey Hybrid/e:HEV (Japan, RC4)

• DOHC 16 valve
  • Displacement: 2.0 L; 121.6 cu in (1,993 cc)
  • Bore x Stroke: 81 mm × 96.7 mm (3.19 in × 3.81 in)
  • Power (Engine): 141 PS (104 kW; 139 hp) / 6,000 rpm
  • Torque (Engine): 182 N⋅m (134 lb⋅ft) / 4,500 rpm
  • Power (Motor): 184 PS (135 kW; 181 hp) / 5,000–6,000 rpm
  • Torque (Motor): 315 N⋅m (232 lb⋅ft) / 0–2,000 rpm
• Honda Civic e:HEV (Japan/Europe, FL4/Thailand, FE4)
• Honda ZR-V e:HEV (Australia, RZ4/6)
• Honda CR-V e:HEV (Europe/China, RS)
• Honda Prelude e:HEV (BF1)

• Honda Engines

• Honda Worldwide, Honda Develops New 1.8l i-VTEC Engine
• Honda Worldwide, New 1.8l i-VTEC Engine (Video)
• Discussion and testing of higher octane fuel with Honda R18 engine

• Honda engines
• 2006 introductions
• Straight-four engines
• Gasoline engines by model

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