Above 5,800 rpm, the intake and exhaust valves are operated by high - lift, long -
duration cam profiles, for maximum high rpm horsepower.
As engine rpm builds, VTEC transitions to a high - lift, long -
duration cam profile for improved high - rpm engine output.
Not exact matches
It might be useful for you to share the
profiles for both stock and aftermarket
cams (lift,
duration).
If we change the phase between these two
cam profiles, we simultaneously alter the valve lift and
duration.
The
cam lobe
profile selected for engine speeds below 3000 rpm has a
duration of 214 degrees and lifts the valves 5.5 mm.
As engine rpm builds past 4800 rpm, the VTEC system transitions to a high - lift, long -
duration intake
cam profile for superior high - rpm engine power.
As engine rpm builds past 5,350 rpm, the i - VTEC system transitions to a high - lift, long -
duration intake
cam profile for superior high - rpm engine power.
As engine speed builds past 5,000 rpm, the VTEC system transitions to a high - lift, long -
duration intake
cam profile for superior high - rpm engine power.