Vtec Controller

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Originally Posted by NEWKON

The only reason to lower the vtec point to below 4000rpm though is if you are going turbo.

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But I thought the point of VTEC is to creat an overlap, meaning that both valves can be open at the same time. So when intake comes in, It pushes some exhaust out and vice versa exhaust going out sucks some air in.

So I thought that If you have a turbo, then when VTEC engages the turbo blows air strait through during overlap. Thus people with DOHC VTEC car's usually use cam gears to overcome this.

Or maybe I could be wrong? :p
Can someone correct me? Im altually quite interested.

-KB

ask Hondata to answer your question. I think he would know best ;)