If you go back to the 1900s to 1940s, the common place to start WAS the camshaft lobe. Engineers and engine designers drew one circle for the base circle, one for the nose, and then connected the two with arcs in-between. Eventually that was improved by shifting their focus to the lifter or tappet rise from the base circle.
Now that Steve has run through lobe shapes and cam cores, you’re ready to put it all together in order to understand what goes into designing a custom camshaft, and the reasons behind certain decisions. If you missed Part 1 or Part 2, view them at the links.
There’s a lot of detailed information that comes with camshaft selection, but core size is one of the more important aspects as it dictates several other specifications of the cam itself. Steve explains in this episode. Stay tuned for the final Part 3 video on camshafts. If you missed Part 1, click here.
The camshaft is to an engine as a conductor is to an orchestra. A lot rides on having the proper camshaft selected for your engine application. In Part 1 of this Steve Tech on camshafts, Steve Morris discusses lobe shape and the importance of choosing the right shape for your expected performance goals. Stay tuned
In this episode of Industry Insiders, we sit down with Billy Godbold, COMP Cams’ Valvetrain Engineering Group manager, to discuss all things camshaft, from common misconceptions to proper camshaft selection to lift, lobe separation, firing order, and much more.
We caught up with Billy Godbold to discuss all things camshaft, from common misconceptions to proper camshaft selection to firing order and much more.
The most misunderstood component of an engine is the camshaft. Selecting a camshaft and understanding its profile and design can be a “black art” as most of what a cam profile controls is invisible – air. Yet, the camshaft has a major impact on engine performance.
The camshaft design affects valve timing, compression and the engine’s ability to breathe. From pistons to manifolds, valve grind, piston pin offset, rod length, etc. Once the camshaft has been tabbed correctly for the application, the rest of the build can focus off that selection.