ok.. for a start. from working with ron toronack (sp?) he sugested that on his race cars (brabam's)they achieved maximum power and efecancy at a coolant temp of 75 and oil at 110.
and this was provan on the v8 supercar we worked on.
the whole reason for the oil to be 100+was so that from any blowby and therefor moisture getting into the oil it would boil off. the oil would last longer and you would get much less sludge build up.
anyway. my two cents.