School me on Hydroboost Brakes

[Root Moose]

I've got the big brake setup on the XJ done but I'm not happy with the pedal feel. It works well but the pedal travels much too far and I find it hard to modulate at the limit. My Jeep doesn't have ABS so that is just a little important.

I understand that the larger bore of a hydroboost master pushes much more fluid over a smaller range of travel (assuming same pedal ratio) and this is something that may fix me up.

So, what do you need to do to retrofit hydroboost on a vehicle that didn't...

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[dwcjwerfner]

Did your big brake setup include the Durango or Dakota master and cylinder?

dj

 

[Root Moose]

What I have so far is 2001 XJ master and booster (supposed to be ~same as WJ), WJ front calipers, Sidekick 4 door front calipers in the back (bigger than ZJ rear calipers).

I still need to monkey with the proportioning but I'm certain that adjusting that will not reduce the amount of pedal travel I'm seeing now. At least not enough to make a big difference.

 

[dwcjwerfner]

What I have so far is 2001 XJ master and booster (supposed to be ~same as WJ), WJ front calipers, Sidekick 4 door front calipers in the back (bigger than ZJ rear calipers).

I still need to monkey with the proportioning but I'm certain that adjusting that will not reduce the amount of pedal travel I'm seeing now. At least not enough to make a big difference.

Yeah from what I understand the Durango master is the way to go because of it's large volume and something about their booster being able to take even bigger masters. I am surprised that you have not seen this. The 2001 XJ/ ZJ stuff works but low pedal, I have it and I don't mind it.

dj

 

[Root Moose]

What vintage Durango are we talking about? I'll go do some research. Is it larger bore? <must be?>

 

[Root Moose]

Assuming similar vintage... MY98 Durango is 1-1/16" bore (vs 1" for the MY97+ XJ). That may be workable.

Plug and play? Any bracketry fab required?

 

[Root Moose]

99 Durango is bolt in apparently (1-1/16" bore). I'll give that a go first. I'm not really keen on modifying (i.e. welding) the MC rod on a street vehicle.

Thanks for the tweak.

 

[dwcjwerfner]

LOL!
I knew you would do fine you web researcher supreme you, I especially enjoyed the whole single sided conversation on how you got there.

 

[Root Moose]

That's just the way I roll.