Turbo cooling, previously Re: [Biturbos4] S4 Biturbo newbie

[Charles Wurts]

> On the old I5 engines, the cooling fan can come on as well after the 
> engine is off if it's hot enough.  Newer engines no longer do that, 
> not sure why, could be a safety reason.
>
>

Todd so far is the only one who is told me that the after run function 
is still present on the biturbos;  he told me that the Tstat is much 
higher and will rarely come into play.  I would like some more info 
about this if there is any knowledge out there.  I asked him about 
using a lower temp Tstat rather than a turbo timer as it is more 
appealing to me.  In the mean time I am religious about cool down.