Honda R engine

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R20A

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 technologies to improve economy. Piston rings are given an ion plating, weight is reduced with plastic and aluminum parts and variable length intake manifolds that maintain ram air at a wide rpm range. 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.

R16[edit]

R16A[edit]

  • Found in:
    • 2007- Honda Civic (Singapore Local Market FD4, Egypt, Turkey, Cyprus, South Africa (2012-)
      • Displacement: 1,595 cc (97.3 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 77.4 mm (3.19 in × 3.05 in)
      • Power: 125 PS (92 kW; 123 bhp) @ 6,200 rpm
      • Torque: 15.6 kgf·m (151 N·m (111 ft·lbf)) @ 4,200 rpm

red line : 6500

R18[edit]

R18A

R18A1[edit]

  • Found in:
    • 2006+ Honda Civic (JDM FD1, American/Canadian-market FA1 and FG1)
      • Displacement: 1,799 cc (109.8 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 87.3 mm (3.19 in × 3.44 in)
      • Power: 140 PS (103 kW; 138 bhp) @ 6300 rpm (Japanese Spec)
      • Torque: 17.7 kgf·m (174 N·m (128 ft·lbf)) @ 4,300 rpm
      • cruising/ economy 1,500 3,500 rpm
      • VTEC window: 4,800 rpm - 5,200 rpm

R18A2[edit]

  • Found in:
    • 2007- Honda Civic (European-market FN1 & FK2)
      • Displacement: 1,799 cc (109.8 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 87.3 mm (3.19 in × 3.44 in)
      • Power: 140 PS (103 kW; 138 bhp) @ 6,300 rpm
      • Torque: 17.7 kgf·m (174 N·m (128 ft·lbf)) @ 4,300 rpm
      • VTEC window: 4,800 rpm - 5,200 rpm

Redline: 7000 rpm

R20[edit]

R20A1[edit]

  • Found in:
    • 2007- Honda CR-V(RE1, RE2)
      2012- Honda Civic (FB)
      2008- Honda Stream (RSZ)
      2013- Acura ILX (DE1)
      • Displacement: 1,997 cc (121.9 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 96.9 mm (3.19 in × 3.81 in)
      • Power: 150 PS (110 kW; 148 bhp) @ 6,200 rpm
      • Torque: 19.4 kgf·m (190 N·m (140 ft·lbf)) @ 4,197 rpm

R20A2[edit]

  • Found in:
    • 2007- Honda CR-V (RE5)
      • Displacement: 1,997 cc (121.9 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 96.9 mm (3.19 in × 3.81 in)
      • Power: 150 PS (110 kW; 148 bhp) @ 6,200 rpm
      • Torque: 19.4 kgf·m (190 N·m (140 ft·lbf)) @ 4,200 rpm

R20A3[edit]

  • Found in:
    • 2008- Honda Accord (CP1)
      • Displacement: 1,997 cc (121.9 cu in)
      • Compression: 10.5:1
      • Bore & stroke: 81.0 mm × 96.9 mm (3.19 in × 3.81 in)
      • Power: 156 PS (115 kW; 154 bhp) @ 6,300 rpm
      • Torque: 19.3 kgf·m (189 N·m (139 ft·lbf)) @ 4,300 rpm

See also[edit]

References[edit]

External links[edit]