Trends in World Superbike exhaust design

Wednesday, January 08, 2014
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When I first started watching World Superbike almost 25 years ago, the bikes racing on track were sometimes little more than showroom-spec machines with race tyres, a kit exhaust and the lights removed. The race exhaust systems were very similar to t... read more
Tags :  exhausts

Fastening to composite components

Wednesday, January 08, 2014
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Composite materials are becoming ever more common. While fibre-reinforced polymer matrix composites have made limited progress in the sphere of powertrain design and development, despite the efforts of some pioneers, they haven’t achieved the t... read more
Tags :  fasteners

On-demand fuelling

Wednesday, January 08, 2014
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The best businesses, so we are told, are those that provide customers with precisely what they want at precisely the time they need it. ‘Just in time’ was the mantra of the 1990s automotive industry, and with it came the complexities of s... read more
Tags :  fuel-system

The importance of air filtration

Wednesday, January 08, 2014
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The primary function of the engine air filter is simply to remove airborne contaminants – road or trackside dust, dirt, tyre and other organic detritus in the environment – from the intake airstream and prevent it from entering the combus... read more
Tags :  induction-system

Variable-displacement oil pumps

Wednesday, January 08, 2014
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Most automotive engines, whether they are use for road or racing use, have fixed-displacement oil pumps. Most are directly driven by the engine, so in order to ensure sufficient oil supply at low revs – when the pump is turning slowly – t... read more
Tags :  oil-system

Pin bores

Wednesday, January 08, 2014
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I’m sure someone will argue a different point of view, but my opinion is that the piston is probably the single most demanding component in an engine in terms of detailed design. There is so much at stake in terms of performance if the piston i... read more
Tags :  pistons-rings

Chromating applications

Wednesday, January 08, 2014
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It would be wrong to say that conversion treatments such as chromating aren’t used in race engines, but they certainly aren’t used as widely as on race transmissions. One of its main uses in engine parts is the passivation of components w... read more

SAW torque sensors in dynamometers

Wednesday, January 08, 2014
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At the moment, most dynamometer torque sensors use either strain gauges or, in more advanced applications, magneto-elastic sensors to measure output torque. However, in recent years new sensors for torque measurement based on Surface Acoustic Wave (S... read more
Tags :  test-equipment

Pro Mod and Pro Stock manual gearboxes

Wednesday, January 08, 2014
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Pro Mod and Pro Stock drag racing classes still see manual transmissions used in competition, and they range from two-speed units on short, eighth-of-a-mile courses to five speeds on quarter-miles. In Pro Mod the use of manuals is optional; in Pro St... read more
Tags :  transmission

Design of spring retainers

Wednesday, January 08, 2014
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Valvetrains are often the key to improving engine performance. Given a free hand, most engine development engineers will strive for ever higher engine speeds as a route to increased power output, if friction can be prevented from overcoming the extra... read more
Tags :  valvetrain
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