previa supercharger

And do s/c models have any other important issues or problems I should be aware of? In theory they are supposed to get fewer mpg but I cant find any proof of that in the epa estimates.

The ones I've worked on (not a Previa) can be. But you won't get any boost of course, and performance may not be what it used to be when passing/accelerating.

I never wanted for power in my non-supercharged Previa, so thats not a problem (except it died, thats a real problem, and the only nice one with alltrac within 1000 miles is a s/c). I've gotten mixed signals on whether the van will run properly with the s/c disabled. Hopefully Ray knows for sure.

The supercharger does not run the vehicle ;-)

The supercharger operates on demand, so you can just unplug the wires to the clutch, although you may get a warning light.

Since the supercharger operates on demand, it would be simpler to just avoid stomping on the throttle and accelerate gently, especially if the EPA figures don't show much difference.

Well, one of the service departments I called today said that it would interfere with normal operation of the engine. But nobody had ever tried it either, so I dont know if that was speculation or based on actual knowledge.

I checked again and they actually show 1 mpg better mileage for the s/ c on the highway, but that doesnt jive with what I've read about the "roots" type of s/c they used.

I'm sure it was just speculation, just like I'm speculating. ;-)

I've given the theory some more thought, and I'm sticking to my theory.

At a steady cruise, the supercharger should be disengaged. I haven't checked, but my guess is since the s/c version has more torque than the normally aspirated version, it can use a more economical final drive ratio without sacrificing acceleration.