Quote:
Originally Posted by MikesToy
Then why do they have the same or pretty close city/hwy mpg?  |
As in V6 and V8? Or non VVT-i and VVT-i?
Variable valve timing technology, VVT-i, VTEC, etc. tries to optimize both performance and efficiency. So what you're seeing is an increase in power, without a hit in effiiciency (MPG).
BTW, in '06 Toyota adopted the new SAE rating and testing procedures, so the numbers for both V6 and V8 are lower than '05. So for a uniform comparisons, look at Toyota's '03-'05 ratings. The V8 got VVT-i in '05. There's no drop in power, just how they are acheived are tested differently. Sort of like measuring a bottle of soda in qts instead of oz, same amount just one number is different than the other.
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