Thread: Vvt
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Old 08-19-2011, 09:53 AM   #3 (permalink)
Ryland
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VVT-i - Wikipedia, the free encyclopedia

It sounds like if it's just the VVT-i then it's just the intake side.
Before VVT in Toyota's, Toyota had a set up where some of their 4 cylinder engines had 8 intake runners, one for each of the 8 intake valves, one of the intake runners on each cylinder had a butter fly valve, so that even tho the valves were all opening only one of them at lower speeds was getting fuel/air so it was more like having two intakes on the car, one for low rpm's and one for high rpm's.
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