I am by no means an expert but I question this statement, I am not saying you are wrong, I am just asking you (or anybody else) to explain it and help my own understanding.
I 100% accept that an SC engine undergoes more stress, and because it is producing more power will generate more heat than a non SC engine where everything else is equal.
However, when sat in traffic the SC will not be generating any boost and the engine will not be working hard so the thermal load being generated at that instant will not be that high. Is that fair?
Suppose you reach the back of this traffic queue after a fast blast then the engine will have be running hot and will have a shedload (technical term) of heat to dissipate. This is nothing though compared to a turbo though, as the SC is belt driven of the front of the engine and whilst this does raise the temperature of the air being compressed this is nothing like the heat from a turbo being driven by exhaust gases.
Also the turbo is a restrictor in the exhaust. Exhaust gases, apart from being waste carry heat away from the engine. In an SC car these hot gases can exit the engine as rapidly as your zorst will allow. In a turbo they still have to flow through the turbo which soaks up some of the heat and retains it in the engine bay even if you are off boost.
As I said this drivel looks like a statement, but I do mean it to be a question, its just my thoughts. Or am I talking bollox? Discuss......
Also, Val, whats this about an on off button? Is there some kind of clutch so I can turn the SC off? If so I want it! Think I may combine next summers european tour you are organising with a trip to Switzerland if thats true....
Dunno mate, you know more than me by the looks of things. Tbh I know the sum total of nothing on this topic, actually thats unfair - I know it aint cheap but it makes the Z quick! Just sticking around cos I'm interested to learn