MULTI-PROFILE CAMS

Many modern engines cleverly utilise multiple cam profiles machined into a single camshaft. Honda’s three-stage VTEC system is a good example of what we’re banging on about. The cam features three cam lobes per cylinder. This has the effect of providing the engine with three different camshafts per actual camshaft. In other words, the engine can have a cam profile assigned to low engine speeds, another for cruising and an aggressive profile designed for maximum power at higher engine rpm. The engine physically switches between these profiles to provide the best profile possible for the active operating conditions.