Le Mans exhausts

Wednesday, July 09, 2014
Comments (2)

Not so many years ago, there was a united cry from all the teams in LM P1 not running diesels at Le Mans: “We can’t win”, and on the whole they were right. The rules are more balanced now though, and the diesel battle no longer exis... read more
Tags :  exhausts

Fatigue-resistant threadforms

Wednesday, July 09, 2014
Comments (0)

The term ‘fatigue resistant’ might be a little misleading, as it is not a quality that is in black and white but shades of grey, and any component can be made to fail through fatigue by subjecting it to a high enough level of cyclic stres... read more
Tags :  fasteners

Feeding the beast

Wednesday, July 09, 2014
Comments (0)

The fuel injector is an electromagnetically controlled device designed to meter fuel to the engine, and at the same time offer it in a form such that it can be readily combusted. Presented in this way, the task of the injector would therefore seem to... read more
Tags :  fuel-system

Are you seated comfortably?

Wednesday, July 09, 2014
Comments (0)

A race engine is effectively an air pump and, in theory at least, the greater amount of air it passes then the greater amount of power produced. However, the introduction of the inlet (or exhaust) valve to control the flow into (or out of) the combus... read more
Tags :  induction-system

Oil catch tanks and breathers

Wednesday, July 09, 2014
Comments (0)

All engines suffer from a degree of ‘blow-by’, where combustion gas escapes past the piston rings into the crank case. While the movement of pistons and other reciprocating components contributes to crank case pressure, the biggest single... read more
Tags :  oil-system

CAN data systems

Wednesday, July 09, 2014
Comments (0)

A considerable amount of data can be obtained from factory-fitted engine sensors in a modern roadcar-based racer, and mining the data has become far easier in recent years thanks to the widespread adoption by mainstream manufacturers of CAN (Controll... read more
Tags :  test-equipment

EV transmissions

Wednesday, July 09, 2014
Comments (0)

It is a popular myth that electric and hybrid vehicles, thanks to their use of electric motors capable of delivering maximum torque from zero rpm, do not need a transmission. But while it is perfectly feasible to run an electric motor (or motors) dir... read more
Tags :  transmission

Avoiding damaging spring vibration

Wednesday, July 09, 2014
Comments (1)

In race engines that contain them, the valve spring is the most highly stressed component. In the best springs, the materials, heat treatments, hardening processes, manufacturing techniques and surface treatments combine to allow them to operate at i... read more
Tags :  valvetrain
Previous 1 2