Quote:
Originally Posted by spdrun
If you're concerned about compressor wear, could you install a cutout switch for the e-m clutch?
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I'm sure you could, I'm guessing the check-engine light would come on in about 2 seconds. The ECU checks for a certain resistance through the clutch coil windings and it will trigger a CE light.
Of course a smart young man like yourself would invariably try to substitute a properly sized resistor to satisfy the resistance check. Of course that wouldn't work either because I'm sure you'd then confuse the ECU when it was expecting a certain level of boost at a particular throttle position. It would then assume (correctly) that there was some sort of problem with the supercharger and it would trigger a CE light. It may also do other things like restrict throttle inputs or fuel delivery. You'd have to check with the people that wrote the engine management software to know for sure.
And as a final 'nail in the coffin' for this idea you should also be aware that the supercharger also functions as an air-pump for the secondary air injection system. There are a series of switchover flaps and check valves that will direct supercharger output into the input air supply for the air injection system. Your mod would effectively disable the air pump and it would trigger a P0410 code.
I guess you could ignore the CE lights but its been my experience that trying to fool around with the parameters of modern engine management systems will bring unpredictable results.
YMMV.