Ty
Elio Addict
You are a little off with respect to the way the Elio will do it. Each cam lobe has a groove in middle that follows a different profile. The valve lifter has, for simplicity of explanation's sake, a turkey timer that pops out when the timing needs to be changed. The Valve lifter with the turkey timer popped out then follows the grooved lobe. When that power isn't needed, the turkey timer is popped back down flush and the lifter follows the two sides of the cam. Hydraulic pressure (using engine oil as the medium) will control the turkey timer.It may be the double-lobe cam, or whatever they call the mechanism that allows for higher torque when called for. Someone more technical will doubtless put this better, but as I understand it when power is called for the cam moves slightly, moving the valve stem into a higher lift position, then moves back again when the load is reduced, thus preserving fuel economy at cruise and giving you oomph when accelerating. Someone please fix my explanation if it's too far off.
I wonder if Paul eluded to the first generation of engine as being without the special cam. Hmm...
This wasn't direct "THREAD DRIFT", Paul mentioned the first generation motor during the fireside chat (this thread's topic) and the question came up as to what that meant. Well, they told us the first motor didn't have the variable cam, right? I think they did. If so, that would mean the motor for the P5 will be the same single cam profile version as the one they tested back in February. I'd bet the second generation engine will have the dual cam profiles. And THAT is what I think Paul was eluding to during the Fireside Chat (This thread's topic)
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