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Honda R engine

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Honda R engine
Overview
ManufacturerHonda Motor Co Ltd
Production2006–present
Layout
ConfigurationNaturally aspirated Straight-4
Displacement1.6–2.0 L; 97.3–121.9 cu in (1,595–1,997 cc)
Cylinder bore81 mm (3.19 in)
Piston stroke77.4 mm (3.05 in)
87.3 mm (3.44 in)
96.9 mm (3.81 in)
Cylinder block materialAluminum alloy
Cylinder head materialAluminum alloy
ValvetrainSOHC 4 valves x cyl. with i-VTEC
DOHC 4 valves x cyl. with i-VTEC (LF Hybrid engine)
Compression ratio10.5:1-10.7:1
RPM range
Max. engine speed6800
Combustion
Fuel systemPGM-FI
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output125–156 PS (92–115 kW; 123–154 bhp)
Torque output15.4–19.4 kg⋅m (151–190 N⋅m; 111–140 lb⋅ft)

The Honda R engine is an inline-four engine launched in 2006 for the Honda Civic (non-Si). It is fuel injected, has an aluminum-alloy cylinder block and cylinder head, is a SOHC 16-valve design (four valves per cylinder) and utilizes Honda's i-VTEC system. The R series engine has a compression ratio of 10.5:1, features a "drive by wire" throttle system which is computer controlled to reduce pumping 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 and variable 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 with molybdenum disulfide applied in a polka-dot pattern. The automatic transmission model is rated at California 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) controlled distributorless coil-on-plug ignition as the Honda K-series engines. As of September 2019, the R series engines were only offered outside of Japan.

R16

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R16A

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  • Found in:
    • 2006 Honda Civic (Singapore, Egypt, Turkey Market – FA1/FD series)
    • 2012 Honda Civic (Singapore, Egypt, Turkey Market – FB series)
      • Displacement: 1.6 L; 97.3 cu in (1,595 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.5:1
      • Bore & stroke: 81 mm × 77.4 mm (3.19 in × 3.05 in)
      • 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

R16B

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  • Found in:
    • 2016 Honda Civic (Mauritius, Singapore, Egypt, Turkey, Cyprus, South Africa, Ukraine and Brunei – FC series)
      • Displacement: 1.6 L; 97.5 cu in (1,597 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.7:1
      • Bore & stroke: 81 mm × 77.5 mm (3.19 in × 3.05 in)
      • 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
      • Redline: 6700 rpm

R18

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R18A

R18A1

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  • Found in:
    • 2006–2011 Honda Civic (South Africa/Thailand/Malaysia/Indonesia/Philippines/Taiwan/Japan/Indian-market FD1, Brazil, American/Canadian-market FA1 & FG1)
    • 2007–2009 Honda FR-V (European-market BE1)
    • 2008-2015 Honda City
    • 2007-2014 Honda Stream
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.5:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • Power: 141 PS (104 kW; 139 bhp) at 6300 rpm (Japanese Spec)
      • Torque: 17.7 kg⋅m (174 N⋅m; 128 lb⋅ft) at 4,300 rpm
      • Fuel Cut Off: 6900 rpm
      • Redline: 6800 rpm

R18A2

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  • Found in:
    • 2006–2011 Honda Civic (European-market FN1 & FK2)
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • Compression: 10.5:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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

R18A6

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

R18Z1

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R18Z1 on Honda Civic FB2.
  • Found in:
    • 2012–2015 Honda Civic (FB2, FG3)
    • 2016–2020 Honda Civic (FC6, FK5)
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.6:1 (performance benefits from higher octane fuel)
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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.

R18Z4

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  • Found in:
    • 2012-2016 – Honda Civic (European-market FK2)
      • Displacement: 1.8 L; 109.7 cu in (1,798 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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.

R18Z6

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  • Found in:
    • 2013-2017 – Honda Jade
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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
Honda HR-V Engine

R18Z9

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  • Found in:
    • 2016 – Honda HR-V
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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

R18ZF

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  • Found in:
    • 2014 – Honda HR-V (Thailand and Indonesia)[1]
      • Displacement: 1.8 L; 109.8 cu in (1,799 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 87.3 mm (3.19 in × 3.44 in)
      • 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

R20

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R20A1

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R20A

R20A2

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  • Found in:
    • 2007–2011 Honda CR-V (RE5)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.5:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20A3

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  • Found in:
    • 2008–2012 Honda Accord (CP1) (156 hp)
    • 2008–2015 Honda Accord (CU1/CN1/CW1) (156 hp)
    • 2013–2020 Proton Perdana (CP3) (156 hp)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.5:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20A5

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  • Found in:
    • 2012–2015 Honda Civic (Southeast Asian FB3)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20A6

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  • Found in:
    • 2012-2016 – Honda CR-V (RM1, RM2)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20A9

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  • Found in:
    • 2012-2016 – Honda CR-V (RE5)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20Z1

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  • Found in:
    • 2012–2015 Honda Civic (FB3)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • SOHC iVTEC (Chain driven cam)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • 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

R20Z2/R20Z3

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  • Found in:
    • 2013–2017 Honda Accord (CR1)
      • Displacement: 2.0 L; 121.9 cu in (1,997 cc)
      • Compression: 10.6:1
      • Bore & stroke: 81 mm × 96.9 mm (3.19 in × 3.81 in)
      • Power: 155 PS (114 kW; 153 bhp) at 6,500 rpm
      • Torque: 19.4 kg⋅m (190 N⋅m; 140 lb⋅ft)

LF (R20-based hybrid engine)

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LFA1 (i-VTEC + Sport Hybrid i-MMD)

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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]

LFB1 (i-VTEC + Sport Hybrid i-MMD)

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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)[5]
  • Honda Odyssey e:HEV Absolute (International, RC4)

LFB-13 (i-VTEC + Sport Hybrid i-MMD, e:PHEV)

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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)

LFB-H4 (i-VTEC + Sport Hybrid i-MMD)

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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)[6]
  • Honda CR-V Hybrid/e:HEV (Japan, RT5–RT6)[7]
  • Honda Odyssey Hybrid/e:HEV (Japan, RC4)
LFC1 Engine in a Honda CR-V e:HEV (RS, China)

LFC-H4

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  • 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)

See also

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References

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  1. ^ Car Thailand [dead link‍]
  2. ^ "Odyssey Spec List" (PDF). Honda (Japan) (in Japanese).
  3. ^ "Stepwgn Spec List" (PDF). Honda (Japan) (in Japanese).
  4. ^ a b "Honda Two-Motor Hybrid-Electric System" (Press release). 30 January 2023. Retrieved 15 June 2024.
  5. ^ "ECO sticker - Honda Accord Hybrid TECH". ECO sticker - The Office of Industrial Economics, Ministry of Industry Thailand (in Thai). Retrieved 18 January 2020.
  6. ^ "Accord Spec List" (PDF). Honda (Japan) (in Japanese). Retrieved 26 August 2020.
  7. ^ "CR-V Spec List" (PDF). Honda (Japan) (in Japanese). Retrieved 26 August 2020.
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