VTEC Controllers

Honda VTEC technology is one of the greatest advents in engine history, combining high performance capability with street drivability. The Variable Valve Timing and Electronic Lift Control system developed by Honda finally brought closure to the age-old problem facing high performance streetcars, namely maximizing performance without sacrificing drivability. The VTEC engine solves this problem by altering cam timing while the engine is running, allowing for variation in valve lift, response, duration, and lobe displacement angle.

The Advantage of VTEC Controllers

VTEC controllers are designed specifically to change the shifting point on any Honda VTEC high cam engine. This allows you to change settings to meet the situation, whether it be for low torque or peak power. VTEC controllers also allow you to change your fuel to air ratio as your driving style demands. A good VTEC controller can alter the fuel to air ratio by as much as –10% to +10%, correcting the deviations of the fuel to air mix caused by changes in the high cam point.

Other features to look for in a quality VTEC controller is a compact and lightweight design. Some models come with radio dials that are easily used in cold weather while wearing gloves. This is an advantage drivers here in Idaho can really appreciate.

The factory set kick-in point is somewhere around 5000 RPM. However, since Honda has produced so many different VTEC engines it has been realized that 5000 RPM is not the ideal kick-in for every motor. If VTEC kicks in too soon, engine response becomes sluggish, and if engaged too late, power is wasted while the engine sits on the low power cam past its power peak. A high quality VTEC controller can inexpensively solve this problem, allowing the engine to shift over at its peak power point.