High-temperature polymers

Tuesday, August 20, 2013
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The use of polymers in racing powertrains is relatively limited, their main use normally being as a matrix for fibre-reinforced composites. There have been a number of uses of polymers, both filled and unfilled, to the highest levels of motorsport. H... read more

Innovative bearings

Tuesday, August 20, 2013
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Life is a compromise. As engineers we are all familiar with the principle of ‘give and take’, and once the problem is identified, until now we have always managed to come up with a workable solution which, if not altogether perfect, suits... read more
Tags :  bearings

The camless engine

Tuesday, August 20, 2013
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As used in automotive applications the internal combustion engine is woefully inefficient. Many gasoline race engines can claim up to 35% thermal efficiency at specific speeds and loads, but a figure of 25% – even as low as 20% overall – ... read more
Tags :  camshafts

Bolt Hole Details

Tuesday, August 20, 2013
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Many of us will be aware that the con rod bolt is very often the most highly stressed fastener in any race engine. Not only is it highly stressed but if a rod bolt fails then the consequences can be catastrophic for the whole engine. I have seen engi... read more
Tags :  con-rods

The aftercooler

Tuesday, August 20, 2013
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It is an inescapable fact that pressure charging the intake air of an internal combustion engine invariably increases the temperature of that charge. The degree to which the temperature increases is essentially a function of the type of compression t... read more
Tags :  coolant-system

More on grinding and polishing

Tuesday, August 20, 2013
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In the previous article, the subject of crankshaft grinding was discussed. In addition to the perils of grinding incorrectly in terms of ‘grinding cracks’, there is evidence to suggest that the direction of travel of the workpiece relativ... read more
Tags :  crankshafts

High tension

Tuesday, August 20, 2013
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Those of you who enjoy historic motorsport as well as more modern automotive activities will appreciate that engine spark-ignition systems have come a long way over the years. From the inefficient magneto systems of the early years – which were... read more
Tags :  electronics

Active cylinder?

Tuesday, August 20, 2013
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In this issue’s article on Engine Structure I want to look more closely at the cylinder liner and its ability to play a significant role in the overall cooling system in race engines. Despite its passive role historically, this rather simple co... read more
Tags :  engine-structure
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