ok..
some alt and regulators are more prone to heat damage than others. Generally 210deg should be ok for our 911 alt, although some track guys complain about the internal regulated alt. So I guess it's all an educated guess what you can get away with.
hard info: When a good car battery is used to jump a dead battery and the dead battery car starts the voltage will spike in the good battery car when the cables are removed and may kill the transistorized regulator, at least. This can be avoided by turning on all accessories and lights in the car that's doing the jump.
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Ronin LB
'77 911s 2.7
PMO E 8.5
SSI Monty
MSD JPI
w x 6
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