I'm considering what to do with the brakes on my MK2 Jag, one thing I wanted to consider was converting it to dual circuit for improved safety however, i've looked at this and there are no commercially available kits to do this.
The 420 had a system which was partially dual circuit but even then the link between the master cylinder and the servo was single circuit and hence a single point of failure.
I have considered fitting an X300 pedal box, master cylinder and servo and altering the bulkhead to suit. I'm not entirely sure on how this would affect the system hydraulics. I would also need to move the battery and considered either putting it in the boot of possibly on top of the front crossmember under the front wing where the vacuum reservoir would normally be.
The X300 master cylinder appears to have a bore size of 23.8mm (around 15/16") whereas the brake master cylinder for the MK2 is 7/8" which I understand in theory will make the brake pedal harder to press. I haven't been able to find the servo ratios yet.
How do you work out the difference as presumably the X300 master cylinder effectivly has two 15/16" pistons moving fluid and the MK2 only has one 7/8" piston.
Does anyone have any experience of this? I'm using the original brake callipers at the moment which are 2 1/8" at the front and I thin 1 3/4" at the rear.