[lehiguy]

Originally Posted by GLTHFJ60

You would end up right where you started in terms of pedal travel, but the larger volume of fluid pushed through the larger master cylinder would mean that you have a greater potential for stopping power. More volume in the caliper with the same at the master cylinder = less pressure. Upgrade both retains the stock pedal travel with more stopping power.

My thought, but then again I haven't done the swap yet. Experience only from what I've read.

If you change the math around to a situation where you are pushing more fluid into the calipers, (and this would be best expressed as a ratio) the pedal would decrease in travel but increase in firmness and you would lose braking ability simply becuase you would have to push harder on the pedal to achieve tha same pressure at the caliper. It's a mathematical fact that a smaller master cylinder diameter would increase the pressure at the caliper. So would a larger diameter caliper piston. The best scenario, and one that has yet to be achieved, are larger diameter rotors and a caliper location to accomodate that change. I only wish my Cruiser could stop like my BMW which weighs less and has far bigger rotors.