![]() ![]() You can find out how things like what lift, duration, and valve events are, and we have even covered choosing a cam, and the difference between types of camshafts, but what do you know about camshaft timing? What really happens when a camshaft is installed at “zero” (straight up), or advanced? In theory, advancing or retarding the camshaft’s timing moves the engine’s torque band on the rpm scale by changing when the valve events occur, but how much, and in what direction?Ī camshaft that is advanced four degrees causes each valve opening and closing event to occur at four degrees of crankshaft rotation sooner than when at zero. ![]() There is an infinite amount of information on the Internet about how a camshaft works. But it reality, it isn’t that hard to understand. But, when it comes to camshafts, grasping that understanding is many times considered black magic. No matter what the situation, truer words have never been spoken. Part IX: Timing is everything-Advancing or retarding the camshaft. Drag Race 101: Degreeing a Camshaft What’s Best for your Small Block Chevy ![]()
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