Honda F20C engine

Honda F20C engine
F22C1 engine
Overview
ManufacturerHonda
Production2000–2009
Layout
ConfigurationNaturally-aspirated Inline-4
Displacement2.0 L; 121.9 cu in (1,997 cc) (F20C)
2.2 L; 131.6 cu in (2,157 cc) (F22C1)
Cylinder bore87 mm (3.43 in)
Piston stroke84 mm (3.31 in) (F20C)
90.7 mm (3.57 in) (F22C1)
Cylinder block materialAluminum
Cylinder head materialAluminum
ValvetrainDOHC 4 valves x cyl. with VTEC
Compression ratioF20C: 11.7:1 (Japan), 11.0:1 (North America, Europe)
F22C1: 11.1:1 (North America, Japan)
RPM range
Max. engine speed8,800 (F20C), 8,000 (F22C1)
Combustion
Fuel systemFuel injection
Fuel typeGasoline
Cooling systemWater-cooled with water-cooled oil filter base plate
Output
Power output237–247 bhp (177–184 kW; 240–250 PS)
Torque output150–162 lb⋅ft (203–220 N⋅m)
Dimensions
Dry weightF20C: Piston 355g; Wrist Pin 109g; Connecting Rod 636g F22C1: Piston 346g; Wrist Pin 109g; Connecting Rod 649g
Chronology
PredecessorHonda F engine

The F20C and F22C1 were inline-4 engines produced by Honda for use in the Honda S2000. They are one of the few Honda 4-cylinder automobile engines that are designed to sit longitudinally for rear wheel drive.

These engines are a distant relative to the F-series engines found in the mid-1990s Honda Accord and Prelude.[1] To get most out of the compact-sized engine, Honda engineers utilized technology derived from Honda's racing engines.[2] The F20C and F22C1 have two overhead cams with roller followers, a ladder-frame main bearing stiffener, a VTEC system for both the intake and exhaust camshaft, Fiber-Reinforced Metal cylinder liners (FRM), Forged aluminum molybdenum disulfide-coated piston skirts for reduced friction, and uses a timing chain.

The VTEC system consists of two separate cam lobe profiles. Variable cam phasing is not used. Roller followers are used to reduce friction in the valvetrain. The rocker arms are constructed using metal injection molding.

The engine block is constructed of aluminum with a fiber-reinforced metal sleeve. A timing chain drives an intermediate gear, which drives the cams. The pistons are forged aluminum. The intake plenum was designed with minimal volume for fast engine response, and a 14 lb (6.4 kg) flywheel was fitted until 2004. A high-flow catalyst is supplied along with an exhaust air-injection system, which greatly decreases catalyst light-off time and cold emissions.

  1. ^ "Technology to Increase Power Output of a Low-Emission/High-Efficiency Engine". Spark-Ignition Engine Technology. July 1999. The model F20C is the upscale version of the F20B which has been the powerplant of the Honda Accord.
  2. ^ Cite error: The named reference JDMspecF20C was invoked but never defined (see the help page).