calculating brake force???

[RSX302]

Ron that is nearly the same calculator I used. The small bore of the SL6 drops the wheel torque by 20% over the stock rotor and caliper! I am amazed at some of these systems. My GT-2 race car uses 4 piston 1.75 bore calipers and 12" rotors, and it weights 2000 lbs! I can't imagine using smaller calipers on a car that is 3400 lbs.

The SL4 was the one I was looking at which I think would have been fine with the 7/8 tandem mc because of having more piston area. (maybe 3/4"mc max) It's the same caliper as the SL6. I guess they couldn't get the piston area in the caliper when they went to 6 pistons due to space limitations. The SL6's in my opinion works better in a power assisted set-up then manual because of the reduced piston area. (Or go to a smaller master like I did) Going to a smaller size caliper doesn't necessarilly mean you will get better or wrose stopping power or less reliability. Piston area, mc size and pad cf will determine stopping power. A bigger caliper usually means - bigger pad = longer lasting = reduced heat build-up etc. (ie: weight of car or racing demands)