[speedy]

Jeza, when i did the calculations i did them converting everything into lbpsi, i read that artical earlier, it is what got me thinking , if you aplly the theory that 100lb from the driver is absolute pressure , this translates into 155psi from the front piston because the piston is less than 1inch squared in area and exerts more pressure because the input pressure is not in psi ,therefore the rear piston because it is less area but pressure is now applied as hydraulic pressure in psi ,it is dependent on the reduction ratioo of the the area,s 444 and 228 which is 1.9 so 79lb of pressure is aplied to the rear circuit ,say we had two pistons on the calipers that were 23mm front and rear the resultant pressure at the front piston would be 23-23 which isa 1-1 ratio so 155lbpsi or 100lb the rear would be 19-23 19mm area=228mm, 23mm area =444mm in area gives a ratio of 1.93 -1 multiply this buy 79 and the answer is 155lb or 100lb absolute it may sound sound confusing but if hydralic pressure is dependant on area then the ratio theory must hold true weather going up or down i put all sorts of caliper piston numbers in and the answers the same, connect the calipers front or back and apart from different pedal pressure it does not matter
what do you think