CSX4000 - Front Brake Upgrade Question

[OROBBE]

Hi Greg,

The old calipers came from 90' Mustang (like all Csx 4000 I think) and are single piston.

The new ones are 4 pistons so larger than the previous ones.

Before the change the pedal was hard and braking was not good at all (master cylinder diameter was 1").

I went down in master cylinder size (0.625") to get more pressure in the brake lines and in the calipers. Of course with a smaller master cylinder pedal travel has increased.

I feel now better braking but not enough as I was waiting for.

I didn't modify the rear master cylinder diameter yet nor the pedal and that's my questions ? Do I need to replace (smaller) rear master cylinder ? Do I need to modify the brake pedal ??

Thanks, OliveR