The slide throttle

Tuesday, August 20, 2013
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As a lifelong student of automotive technology I never fail to be amazed by the inventiveness of the human mind, and one of the best places to demonstrate that is to look at patent applications down the years. Many inventions of course never come to ... read more
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Cotton-based filters

Thursday, July 04, 2013
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If you’ve ever examined the contents of the dirty side of the air filter of your daily transport you don’t need me to emphasise the importance of the filter on the engine air intake. Grit, dead leaves and even quite large insects can all ... read more
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Turbocharger speed measurement

Thursday, May 16, 2013
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In the inexorable search for increased power with efficiency, engine manufacturers are looking more and more towards the turbocharger in its various forms. Twin-turbo engines, sequential turbos and even engines using dual boost systems – two co... read more
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Supercharger talk

Friday, April 05, 2013
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The idea of boosting engine performance by increasing the density of the intake charge is nothing new. Compensating for poorly designed intake systems may have been the reasoning for their use in the late 19th/early 20th century period, but these day... read more
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Intake manifolds

Thursday, February 21, 2013
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The design of a modern intake manifold is a relatively straightforward affair. Ensuring that the positive pressure waves reverberating up and down the intake runner arrive just at the same time as the inlet valve is closing sounds simple enough, and ... read more
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The Air Filter

Thursday, January 03, 2013
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Viewers of Grand Prix in recent years can’t fail to have noticed the increasing amount of debris littering the sides of the track as the race proceeds. Clearly this is the inevitable result of the high rates of tyre degradation and wear during ... read more
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The airbox

Thursday, November 08, 2012
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For an engine to deliver its maximum performance it needs an adequate supply of cold, dense air. In a dynamometer test cell with good ventilation, engine air intake temperatures should not be an issue and are generally around that of the ambient air.... read more
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Variable intake

Thursday, September 27, 2012
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The CAN-AM series of the late 1960s and early '70s made a big impression on a younger me, and may in part have kindled my passion for high-performance engines. An 8.1 litre Oldsmobile unit on the dynamometer test stand at Imperial College London and ... read more
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Barrel, butterfly or slide?

Monday, August 13, 2012
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Arguably the most critical part of the interface between man and machine is that of the engine throttle. Designed to restrict the flow of air to the engine by balancing the rate of working of our spark ignition unit against that demanded by the drive... read more
Tags :  induction-system
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