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Source: Motor Age

Timing belts can age just as quickly as they wear out

March 12, 2010

The correct time to change a timing belt in older cars depends not only on the mileage of the car, but also on the age of the belt, says ContiTech?s Power Transmission Group.

Source: Motor Age

Pump up the performance

March 3, 2010
By:Jim Marotta

It is a simple equation ? the more air and fuel you pump through an automotive engine, the more power it can produce. Since the history of American automobile production has revolved around large displacement power plants that make gobs of torque and horsepower, there has not been a great outcry for powerful small displacement engines. That is until lately.

Source: Motor Age

Motorsports Matters

March 3, 2010

Our technical writers have taken a close look at elements of the racetrack and how they are brought into the bays. They have broken down fuel trims, racing ignition systems, superchargers and turbochargers and stopping a stock car. Check out the different systems on today's vehicles that have ties to some of your favorite circuits.

Source: Motor Age

Keeping the ECM in control

March 2, 2010
By:Peter F. Meier

Serious racers of previous eras had a keen interest in track elevation, relative humidity and air temperature, all numbers they used to calculate relative air density.

Source: Motor Age

Stopping a stockcar

March 1, 2010
By:Peter F. Meier

What are the challenges in designing a NASCAR brake system? A vehicle in motion accumulates kinetic energy proportional to its mass and to the square of its speed. So to stop that vehicle or to even just slow it down, that energy has to be transferred somewhere else. The easiest method is to convert that kinetic energy into heat, and that?s exactly what braking systems do through friction between the pad material and the rotor. The vehicle we?re designing for is a 3,400-pound, 800 hp rocket ship capable of speeds of nearly 195 mph. That?s a lot of energy to convert!

Source: Motor Age

Faced with a delayed reaction failure

March 1, 2010
By:Richard McCuistian

The e-mail explained a repair gone wrong, and it was not a good situation. It served as a reminder that repairs done wrong can be devastatings, and some of these situations happen because some shops tend to hire people that haven't been properly trained.

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