ITR Mustang

[Ron Earp]

Aluminum looses much of it's strength when heated up to 195*F - 250*F. .

Somehow I don't think that is the case. Pure aluminum melts at over 1200F, most alloys slightly less. Given the fact most modern engines have blocks and heads made out of aluminum and operate at 180F to 250F as standard fare, it doesn't reason that the aluminum would give up much of its strength at that temp. Hell, I suspect the the brakes on the street cars are hitting 180-190F in stop and go traffic. They don't fail there.I can check with a fellow I know who has extensive casting experience with aluminum if interested.

You'll definitely want to use temperature crayons or paint to check temps, or, a pyrometer. Back in the dark days of TR8 brake work we were getting some obscene 475-500F temperatures, bona fide verified with temp probes, on the calipers. Bad things happened to lines,seals, and even tires/wheels when that was going on.