question about VVEL, throttlebody, and drive by wire...

Originally Posted by kannibul

Nice pics...

Still, the question remains - what happens if the engine is running at 3,000 RPM, and the DC motor is unplugged (simulating a failure)?

I imagine there won't be and destruction of the valves/pistons, etc, since the timing of the cams should still keep everything intact...

Still, it doesn't have a cam in the traditional sense...

Originally Posted by 6SPD_FTW

There is a vacuum tank somewhere, built into the intake manifold. It uses a one-way valve to maintain a supply of vacuum for the brakes. There typically is vacuum in the manifold only at idle as that's usually the only time the throttles close (unless the VDC system is cutting power to maintain traction). So, vacuum pressure should be maintained at a fairly constant level.

Late,
Trav