Quote:
Originally Posted by xntrx
It has nothing to do with lean burn, its all rpm vtec switch over dependent.
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what is?
[/QUOTE] Its technically always using 16v. [/QUOTE]
correct. and thats at any rpm that its not in lean burn.
[/QUOTE] At low rpm, one only opens very slightly (to promote swirl and fuel pooling), so it might as well be 12v. [/QUOTE]
yes but not at all low rpm. it only does this if you are easy on the throttle. as soon as you step on it even at 1500rpm it goes back to 16v mode.
[/QUOTE] Once it reaches the change over (2500 for USDM), to two rocker arms are locked together and fully open. Since you've looked at 3 stage, its the same, just without the extra high lift rocker. [/QUOTE]
its in 16v mode even at idle. vx vtec-e doesnt have to wait to get above a certain rpm to go in 16v mode. the rpm limit just means it wont go into lean burn after that point.