Anybody heard of a VTEC-E?

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May 26, 2004

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82801BA

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Quote:

Originally Posted by GaryC17

According to this website http://www.leecao.com/honda/vtec/sohcvtece.html , in 12V mode, the valve controlled by the lower lobe doesn't actually open. It just opens so slightly that no fuel can go in. So in short, our cars just operate in 12V mode then switches over to 16V mode with both modes having the same lift. So there can never be any aftermarket camshaft for our cars since it will probably not be able to idle(12V mode) on a high lift cam lobe profile.

Unlike the older gen civics whereby camshafts which have only a higher lift on the higher lobe of the 3 lobes can be produced. Demore.....

That's not 100% true. Fuel is injected into the intake manifold, not into the cylinder. So that fuel is mixed before the valve, and whenever a valve opens, no matter how wide, fuel is getting in with air.
The D17A6 is a true 12 switch to 16 engine. D17A2 has the secondary lobe profile higher than A6.
If an aftermarket camshaft is made, it can only do anything to the primary. It will still be idling good as long as the the total intake volume at idle doesn't get too big.