[madmaxx]

wanab5150
Thanks for the update, I also have a new spf in the works and first impression from assembler was "yes they work". Not yes, these are the best brakes I have ever used LOL! I am running the tw cammed motor though. It will be interesting to hear the path forward.

The Calipers I have dealt with apear to be fairly simple. We have a caliber with a bore, piston, hydraulic fluid. fluid presses on piston and piston pushes on pad, pad pushes on rotor. Did you notice any weepage around your calipers, as soon as hydraulic fluid is realeased all motive force is instantly lost, that is why when you pressure test vessels you always use liquid instead of air, liquid has no potential energy it is not compressible, if you tested with air which is compressible than bang? Is the brake hose fitting on the bottom as opposed to the top and air is getting trapped, during installation how were the calibers bled, on the car, hopefully they used a vacuum system? Are the calipers sticking, is there a rubber guide bushing which is swelling due to an incompatilble lubricant. The hardest brake problem I ever solved was an intermittent one, sometimes they worked great and sometimes they didn't. The problem was the flexible hose from the brake line to the caliber was defective and delaminated on the inside, sometimes the delamination would act like a flap when you applied the brakes and therefore no brake "pressure" would get to the caliber. It took many many f*()ing months to figure that one out!!!

I really do not see how this is a challenging problem and a little surprised . Or am I misinterpeting the problem, is the reality the spf brakes realative to dailey drivers are superior but SPF is having a problem competing with F1 cars brakes?

I suggest spf post all the calculations realative to fluid flow, displacement, pressure, brake bias etc so we can solve it.