I am currently trying to find out everything there is to know about my car, and I need a question answered, What is the VVT-i. Is it like V-tec or what? I know it has to do with the valves, but what is special about it? Did Toyota make their own V-tec and changed the name?
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VVT-i
Started by RicerX, Feb 15 2006 11:11 PM
#1
Posted 15 February 2006 - 11:11 PM
#2
Posted 16 February 2006 - 08:15 AM
QUOTE (RicerX @ Feb 16 2006, 07:11 AM)
What is the VVT-i. Is it like V-tec or what? I know it has to do with the valves, but what is special about it? Did Toyota make their own V-tec and changed the name?
VVVT-I stands for Variable Valve Timing w/ Intelligence
SEE:
http://en.wikipedia.org/wiki/VVT%2Di
And even more info here:
http://en.wikipedia....le_valve_timing
Note: Please realize some of the information avail at wikipedia will be incorrect, as it is not researched/verified in the same was an encyclopedia is/would be.
Toyota has had a variable intake/cam system in development/production much longer than honda. It's just that V-TEC is much more well known/widespread as a designation.
The 84-87 Trueno (Corolla) in japan was Toyota's (afaik) first vehicle with a variable intake system, it has a system called TVIS which is secondary intake butterfly's which open up at approx 43-4500 RPMS to allow a broader/smoother torque band across the board. Honda didn't start using the same idea until the GS-R/B18c1 in 94 or 95 (? unsure of when)
http://en.wikipedia.org/wiki/T-VIS
Andrew
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