2 Stage Boost

[90quattrocoupe]

Some 70's yank tank had pneumatic valves and could be driven on 4, 6 or 8 cylinders selectively. Smart stuff back then. Can't remember the name and it probably only span to 2,000rpm before tearing itself to pieces!! LOL! I think that came out of the 70's oil crisis and the need to make engines more economical.

It was a Cadillac. Depending upon the acceleration you wanted or cruising speed, it would only run on like you said, 4, 6 or 8 cylinders. don't remember how they dropped the cylinders off.

Geg

[Crawford_S2]

It was a Cadillac. Depending upon the acceleration you wanted or cruising speed, it would only run on like you said, 4, 6 or 8 cylinders. don't remember how they dropped the cylinders off.

Geg

I remember reading something about the cadillac that it has a 100,000 mile service interval and if the oil falls out for any reason it runs on four out of eight cylinders then when they get too hot it switches to the others to let it cool down!!!

Wouldn't work with the S2 though, mine throws its teddy out the pram if everything isn't just right!

[audiman]

The poxy Ford Sucof (Focus) does the cylinder cut if it looses its coolant. It use two cyls are air pumps to cool the engine. Dead easy for the ECU to control, just cuts fuel and ign. to those cylinders only.