What would be result of using factory drum/drum proportioning valve with a dual disc set up? I have added adjustable prop valve for rear as well. MP Brakes sells a disc/disc prop valve, but I'm curious what it does different.
Drum/Drum setups aren't proportioned they are just straight splitters ( they do have a shuttle valve on dual master setups however) Usually if you add discs to the front of a drum car you just install an adjustable prop valve on the back line to stop the rears locking. HTH Stu
Hmmm after re reading you're quetion I see what you're getting at. I think your set up will still work as your going to need to adjust the rears to stop locking anyway during the weight shift while braking. Stu
Disks need more juice than drums. I'm wondering if your master is up to the task. I can't tell you what would be the best master for your setup but others here might have a master app that they've used on a disc/disc setup. Good Luck Stu