December 2021

Camshaft RPM Range

The basic operating rpm range for a camshaft is its “sweet spot.” This range is where the engine will produce the most Torque and Horsepower. How is it measured? The rpm range is determined by the camshaft manufacturer. The listed range is a result of testing the camshaft on a dyno with different combinations of engine parts. Many […]

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camshift lift

Camshaft Lift

In this article you will learn about measuring and adjusting lift. This came from our friends Summit Racing. When someone refers
to lift, they could be talking about 2 different things. Valve Lift
When talking about camshafts and lift, people usually mean valve lift. This is
the distance the valve actually moves. It is also called “gross
lift.” All camshaft manufacturers […]

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camshaft duration

What is Camshaft Duration?

Duration is how long the
valve is off its seat. It is listed in degrees of crankshaft rotation. When
someone refers to a “big cam,” they mean it has longer duration, not
higher Lift.Manufacturers often list 2
different duration values:
Advertised Duration is the degrees of
crankshaft rotation that the lifter is raised more than […]

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Goodbye to GT racing?

I found this article on MotorSport Magazine, and thought I should share it with you. It was written by Preston Lerner. It covers some of the history of GTLM (Generalized Two-Layer Model) racing and some examples of GT, which stands for Gran Turismo, or grand touring cars.GTLM RacingWhen the first GTLM race was run at Daytona in 2014 during […]

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Fast Shafts logo with featured image

Fast Shafts has returned

When it comes to driveshafts for racers and their machines, Fast Shafts is the undisputed industry leader in speed and reliability, and officials from the USRA are honored to announce the return of Fast Shafts as the Official Driveshaft of the USRA in 2022.Headquartered in Des Moines, Iowa, Fast Shafts has been producing driveshafts for […]

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