Brake pedal feedback? - fixed sorta

How's everyone's brake pedal feel? Right now, mine feels spongy, compared to the old one. I swapped a master cylinder unit off the parts car the other day after putting on mark7 calipers. Think a combination of bigger calipers and a near fluid flush finished the old one off.. it had been going to the floor slowly when stopped for a while. The 'new' one doesn't seem right either. There's no going to the floor when it's discharged, but when the accumulator is charged, I can push it through to the floor. Don't know if this is normal... my old one did't do this. I don't get any abs/brake lights. Two good pumps brings the pump on. 25-27 pumps empties the charge. Vaccuum bled the fronts last night with no change. I've now put almost 4qts of dot3 through the system with all the bleeding. It stops ok normal driving.. I haven't tried a panic stop, yet. I'm going to rebleed everything again, tomorrow, starting from the master cylinder.

After sitting in a garage for over a year, I'm amazed at how firm my pedal feels.

Front brake lines in good shape?

-n8-

Yea.. front lines are new. I just put the old calipers back on, tonight. It doesn't go to the floor anymore, but it still goes pretty far down. I need to put the wheels back on and see what it does on the road, panic stop.. but once it quits raining tomorrow.

The accumulator comes back on during the second pump... that makes me wonder a bit...

Well, I don't ever remember reading this, but... seems mark vii calipers and teves ii abs don't mix. Cold brakes, or even normal use they'll work and stop decent.. though, pedal travel is longer and not as firm as stock.. and I couldn't push through to the floor.

Pedal feel and response was restored after putting the stock calipers back on. Put the mark vii calipers back on and back to the old. I planned to use the upgrade, fully.. so beating on the brakes revealed the problem. After heavy use, they started going to the floor with a loss of effectiveness.

So.. teves ii systems between TC and mark vii are not identical? or could I have an accumulator problem?

I had a bad accumulator on my TC and it just made the pump cycle every time the brakes were applied... Also it had no reserve with ign sw off, but still had plenty of pedal...

BTW I do have a LSC accumulator on mine, so that part can interchange......