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Old 03-17-2016, 02:46 PM   #11
tmontague
 
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Drives: '08 2zr swapped Vios M/T
Join Date: Oct 2012
Location: Caledonia Ont.
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Quote:
Originally Posted by ern-diz View Post
Pardon my mechanical ignorance, but isn't VVT-i just V-Tech under a diff name? I've done a little research, but haven't been able to understand the difference. They're both just variable valve timing, right? Why is it that the Honda guys talk about 'V-Tech kicking in' and it seems VVT-i doesn't?
My understanding it vtec has valve lift where vvt-i is just variable timing. You essentially notice more "boost" w/ vtec but vvti is spread out more evenly through the rpm range.

The 2zr has dual vvti and I thought it also has valve lift capabilities which is likely why you feel the pick up after 4k.

Someone correct my post if incorrect
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