I guess the slave gets more heat as the engine heat is sucked out of the bottom of the engine compartment when moving down the road, while the master gets more heat when the car is not moving and the heat is rising straight up at them.
I would maintain that it's a poor design if a master can be killed in 30 minutes of engine-run time.
I'm amazed that manufacturers haven't engineered this out by now. Cobra kits have been out there for decades.
Where did you find a small reflective sleeve for the slave flex-line?
Too bad they don't make master internals of hi-temp silicon rubber, then use DOT 5.1 (boils at 518 deg F), or the Wilwood EXP 600 Plus hi-temp fluid that they say boils at 626 degF (
http://www.wilwood.com/BrakeFluid/BrakeFluid.aspx ). Now I just need to find a supplier. Maybe call Wilwood and see what temp their master cylinder internal parts are rated at.
We can't be the only application where heat is such a factor I would think.
Anyone using the 7/8" Tilton clutch master cylinder for a shorter pedal throw w/ remote reservoir? Seems like having the reservoir where it would be easy to check and fill would be an improvement?
http://www.tiltonracing.com/ins/98-1230.pdf
Bob