This is where the rocker arm comes into the equation. The camshaft controls the valves by pushing up on the lifter, which in turn pushes up on a pushrod. The loss of friction may help things last longer, but it’s not going to measurably add power.īefore we get into the hardcore data, let’s understand what a rocker arm does. That’s just not the case, as there’s a great deal more going on. The resultant loss of friction supposedly makes power. A common misconception is that roller rockers are better than their stock counterparts because they use bearings instead of bushings. Let’s separate the poseurs from the rest of us right away. It’s a common question in our world: Does this automotive widget work as promised? Roller rockers are among the more popular and often misunderstood widgets, and they promise seemingly magical gains with few downsides.ĭo roller rockers really improve performance, save gas and make your teeth whiter? Well, it helps if you know how they work, when they’ll work for you, and when they won’t.
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