News
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17 Jan 2012
Size matters?
07 Dec 2011
£1¼m investment in 5 axis Machining Capability
05 May 2010
Viper Motorcycle Company, a wholly owned subsidiary of Viper Powersports Inc., announced today delivery of the first re-designed production short stroke engines for the 2011 Viper build.
09 February 2010
Ilmor announced today they have successfully run the first prototype Ilmor - Viper Motorcycle Company engine on the dyno ahead of schedule and are already seeing promising results.
07 October 2009
Ilmor Engineering is pleased to announce that its presence at the Professional Motorsport World (PMW) Expo in Cologne, Germany from 3rd-5th November
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CONCEPT ENGINES - testing the theory
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COST EFFECTIVE
HIGH QUALITY
CUSTOMER SPECIFIC
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Ilmor is using its race engine expertise to bring developments to the field of energy efficient engines. Motor racing is not generally associated with fuel economy, but the lessons learned during periods of intense engine development can be applied with great effect to create highly fuel efficient engines.
Fuel efficiency can be improved by downsizing engines - creating the same amount of power from a smaller swept volume (smaller capacity) which typically burns a smaller amount of fuel. High performance engine design is all about extracting as much power as possible from a defined capacity by the use of intelligent design, low friction coatings or even completely new concepts. All of this knowledge can therefore be applied to maximise the power output of a small capacity, fuel efficient engine.
Our flexible approach ensures that we are able to build on a concept and develop innovative, tailored and most importantly working solutions for our clients, allowing physical testing and ongoing development of the concept.
- Designs to customer specification
- Rapid manufacture / Rapid prototype / Short lead time
- Sub system or complete engine
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5-stroke concept engine
One such example of this application of our engineering knowledge is the patented 5-stroke engine which Ilmor is currently developing. Our objective with the 5-stroke engine is to develop a gasoline engine with fuel consumption and emission levels comparable to that of current diesel engines, without the serious problem of particulate and NOx emissions that plague diesels.
The simplest way to demonstrate the 5-stroke principle was considered to be a 3 cylinder layout with two fired 4-stroke cylinders (High Pressure - HP) alternately exhausting into a central expansion cylinder (Low Pressure - LP) which provides a further expansion process on the exhaust gases (the 5th stroke).
The engine uses a rapid prototype cast cylinder head, a machined from solid cylinder block and separate electrically powered oil and water pumps. Two overhead camshafts operate the conventional coil spring valvegear with the HP camshaft running at 0.5 x crank speed and the LP camshaft running at 1 x crank speed. The engine is also turbocharged to increase the engine rating.
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