Acura introduced a new system which alters the timing at which the valves in an engine open and close, called Variable valve Timing and Electronic lift Control. The NSX debut this new system and brought it to the consumer product market. This special system gives an extra boost when the proper ratio of RPMs and speed is aquired. It is designed to active at this time because at that speed with those RPMs, you're usually racing or quickly accelerating. This quick kick allows for the car to speed up very quickly without making the consumer do any added motions or movements. It seems to kick in out of no where and this power can be overwhelming to some if they're not careful. Techinically speaking, the VTEC was made to improve the volumetric efficiency of an 4-stroke internal combustion engine.
Variable Valve Timing with intelligence, also known as VVT-i, was developed by Toyota to compete with Honda's Vtec. This VVT-i was made to replace Toyota's already popular VVT. The VVT-i works by "by adjusting the relationship between the camshaft drive (belt, scissor-gear or chain) and intake camshaft."
In reality, both VTEC and VVT-i work about the same, it's just that they are used in different brands of cars. They give the consumer that extra kick they need when trying to merge onto the interstate without being eaten by a truck driver or that kick the kids want when racing that 1/4 mile.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment