Originally Posted by Bimmer-Bob
Uh, he's not just "someone 'saying' it," he's the production manager of the engine! Presumably he knows what he's talking about. Who better knows the tolerances of the engine than the engineers that designed it?
people who've actually physically done things to it?
i work on mobile phone (radio transmission) systems, and i could say a particular piece of hardware can only tolerate xyz, but the reality is i can't be sure until it's been put under that sort of load.
and the 7psi of a supercharger is less than the 20 odd that would be put through on a turbocharged system anyway, different systems flow volumes of air differently.