Quote:
Originally Posted by Randy88FJ62
snipped......
Why should I be scratching the SSBC calipers? They are billet aluminum so they should dissipate heat better, they have bigger area pistons and the billet aluminum shouldn’t flex as much as cast steel so there should be less inconsistency when braking which should provide better stopping power.
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Aluminum flexes more than steel.
E(steels) = 29,700 psi
E(6061) = 10,000 psi
E(A356-T6) = 10,500 psi
It is possible to design around this deficiency of aluminum, but only a volumetric displacement test can tell for sure if the design succeeded. An educated eyeball might be able to make a guess, but I wouldn't bet for or against the results.
Until you know what the front calipers are going to be I'd hold off on thoughts of changing out the master. I'd first try what you've got and see how it well it works for you. Then if the master doesn't work like you want look into changing it.