This report covers a detailed design benchmarking study of the Renault F5R IDE 2.0L gasoline engine and includes a photographic record of all the main components, plus individual masses and dimensions. Ricardo comments on specific design features are also included.
The F5R IDE engine described here replaced the previous F7R port injected engine in 1999 Renault Megane Coupe and Cabriolet vehicles. The F5R engine has carried over a common cylinder block, crankshaft, connecting rods, accessories, and exhaust manifold from the F7R. A slight reduction of maximum power has been offset by an increase in maximum torque as shown in the table below. However the fuel consumption of the F5R has been significantly reduced compared to the F7R.
|1999 Year F5R IDE||Previous F7R|
|Combustion system||Gasoline direct injection||Gasoline port injection|
|Fuel consumption (drive cycle)||7.6L/100km||9.1L/100km|
Development of the F5R cost £27 million according to published data and took only 14 months. Renault produce 50 of the engines per day but aim to reach 1000 on a modular production line capable of producing a variety of engines. The F5R costs 20% more than the F7R engine it replaces.
- Cylinder Block, Cylinders, Crankcase and Main Bearing Structure
- Connecting Rod, Bearings
- Piston, Pin and Rings, Cylinder Head and Ports
- Camshafts, Valve Train and Cam Cover
- Inlet, Exhaust and Emission Control System