mtrain
+1y
I don't know what your talking about with the turbo spinning wrong, unless you are referring to a turbo setup without either a bypass valve, or blowoff valve. I've owned three factory turbo cars.
Two 86 Mustang SVO's, and on 88 Thunderbird turbocoupe. Neither had a bypass valve, and both boosted to 14 psi with no problems. However I did add a Bosh valve to the higher mileage SVO.
You are wrong about turbo's being harder on an engine vs a supercharger.
The supercharger is harder on the engine since it takes power to turn it, thus puts a lot of strain on the crankshaft, depending on how much boost its making.
A turbo uses exhaust gas that would be wasted to turn a turbine wheel attached to a compressor wheel to make boost. Now if your exh is too restrictive you can build up too much back pressure on a turbo charged setup, which is why you use a free flowing exhaust, ie: headers, bigger pipes, less restrictive mufflers.
Also given two identical engines, one with a supercharger, and one with a turbo, and both making 9 psi of boost, the turbo engine will make more HP, and TQ vs the supercharged engine.