Camshafts are responsible for opening and closing the engine valves. When the camshafts are set properly, the vehicle can operate smoothly and tap into its full performance potential. On the other hand, if important specs such as the lobe separation angle are off, the vehicle's capabilities will be compromised. Professional camshaft regrinding may be necessary for restoring optimal performance. Here are some answers to common questions we hear about camshaft lobe separation angles.

Why Is the Camshaft's Lobe Separation Angle Important?

The lobe separation angle accounts for the distance between the intake and exhaust lobes. It specifically notes the centerlines between those points. Because the distance is expressed in degrees, we have an easier time interpreting it. Note that the lobe separation angles for camshafts can be quite varied. According to Motor Trend, lobe separation angles on typical camshafts can go from as narrow as 102 degrees to as wide as 116 degrees. The disparity in degrees is important to consider because it directly affects the performance of your vehicle. In some cases, you may need to pay for professional camshaft regrinding so you can get the angle right again for your engine setup.

How Do Narrow Separation Angles Affect Vehicle Performance?

Let's start by first evaluating how narrow camshaft lobe separation angles can affect your vehicle. That narrower camshaft angle has a direct impact on a vehicle's torque output. It specifically increases the maximum torque that your vehicle can provide. Increasing torque output is a big deal if you regularly use your vehicle for towing or climbing steep roadways. A narrow camshaft lobe separation angle may also cause a lower idle vacuum and increased valve overlap. The lower idle vacuum will cause your vehicle to present a rougher idle. Meanwhile, the increased valve overlap can lead to harder brakes.

How Do Wider Separation Angles Affect Vehicle Performance?

As you've probably guessed, a wider camshaft lobe separation angle will lead to a lower maximum torque rating, a higher idle vacuum, and decreased valve overlap. In exchange for that high-end towing power, the wider camshaft angle will grant you smoother vehicle performance. If you're just using your car for regular commutes, the wider camshaft angle will suit you.

Continued usage will eventually cause your camshafts to wear down. That said, professional camshaft regrinding will improve everything from idle quality to horsepower output. At Effingham Regrinding Inc, we'll make it a regular part of your vehicle maintenance routine. Give us a call today to learn more about our services! We'd be happy to answer any further questions.