Here's a basic question: why does the supercharger whine?
I'd always thought it was the belt whining, but last night while I was giving a friend a lift we were talking about it and realised that the supercharger can be pretty much silent at any engine speed; it's only when it's under load that it makes its glorious whining noise
For instance, the engine can sit at any constant engine speed (2, 3, 4 , 5 , 6,000 rpm) and the supercharger makes no noise. Put the gearbox into neutral and rev the engine to the rev line and, again, the supercharger makes no (or very little noise) noise. Yet, put the engine under load, accelerate hard and it whines like mad
Why is this?
Tigger.