[Piwoslaw]

Doomz78, check out this thread on EO(ff)C-ing a turbo'ed car. It was meant for turbodiesels, but the same applies to gassers. The bottom line is that you can kill your turbo'd engine, but you should coast in neutral first for a few seconds to allow it to cool down. This pretty much limits your EO(ff)C to loooong coasts, but even then it may still be worth it.

For example, if I'm driving in rolling hills then I try to have 2-4 engine on coasts between engine offing to make sure there isn't too much (thermal) stress. I don't kill the engine if the coast will be less than 500 meters, unless I'm coasting to a red light. On the other hand, it would have been a sin to keep my engine on during 5-6km coasts in the Austrian Alps, ah...