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How to Choose Camshafts & Time Them for Maximum Power Des Hammill
Publisher: Veloce Publishing

As the camshaft spins, the lobes open and close the intake and exhaust valves in time with the motion of the piston. The camshaft uses lobes (called cams) that push against the valves to open them as the camshaft rotates; springs on the valves return them to their closed position. How to Choose Camshafts & Time Them for Maximum Power. It turns out that there is a direct relationship between the shape of the cam lobes and the way the engine performs in different speed ranges. Let's face it, modular Ford owners do not look lovingly at their engine bay when it comes time to swap cams. Why the camshaft plays a vital role in making power. Duration is the amount of time a valve is opened and is measured in crankshaft degrees. With so many variables and options, we asked the experts the big question: Do you need a custom camshaft to get the most out of your engine? But keep in mind that the Nevertheless, these variables are critical in determining not only an engine's maximum power output but also the shape of its power curve. There's only so much space in a catalog to display the most popular cam profiles, so you can't rely on the catalog solely when selecting a cam, you really need to call our technical service rep to get accurate time-frames on availability and shipping.”. If you want to increase low-end torque to launch a heavy bike from a stop, or top-end horsepower for greater top speed, choosing the appropriate cam configuration will help you achieve the desired performance results. Download How to Choose Camshafts & Time Them for Maximum Power. At the very least, most view the process as time consuming and technically challenging, if not overwhelming. The key parts of any camshaft are the lobes.