Re: VANOS vs VTEC

[Herman Chan <hermanc@xxxxxxx>]

Both systems are merely efforts to minimize one of the many 
compromises inherent in tuning engines.  There are a variety of 
factors 
(power/driveability/efficiency/emissions/durability/cost/etc.) that 
must be considered when designing and building an engine, and each 
manufacturer uses different solutions to achieve their objectives.

While it is an interesting exercise to debate the technical merits of 
each subsystem, it is best and most satisfying to evaluate each 
powertrain as a whole.

On that count, both BMW and Honda can be counted as part of the upper 
echelon in terms of engine design prowess.

If BMW's research into electronically-actuated valves ever reaches 
fruition, it will render both VTEC and Vanos obsolete.

Herman

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