Hydro handbrake

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Hydro handbrake

Postby lahondal » Mon Jul 28, 2014 11:23 pm

Hi!

Think this question is a common problem but need to know some info.

Im building a e36 compact rally car, and i fitted a hydro ebrake but it seems it doesnt work properly. It dont lock up the rear wheels. The system is mc-proportioning valve-hydro ebrake-calipers, the handbrake cylinder is .625 and is connected and bleeded the right way.

It seems not have any air in the system as it is hard and firm when i pull, it brakes the rears, but simply dont lock up the wheels.

Does the compact have any restrictor valve on the oem system?

Maybe the rear calipers are too small for the .625 handbrake cylinder?

Thanks!
lahondal
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Re: Hydro handbrake

Postby mrfuzzyfelts » Tue Aug 26, 2014 3:13 pm

Until i ugraded my rear brakes i could never get a good handbrake!

Now the thing is amazing!
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Re: Hydro handbrake

Postby lahondal » Fri Nov 07, 2014 2:26 pm

This week upgraded the rear calipers with 38mm ones (instead of stock 34mm on 318ti) which came from a E32 735i.

Direct fit no problems.

The system seems bleeded (no spongy feel) and rear handbrake is now way better, but need more, i think with real sticky rally tarmac tyres i will cant lock up the wheels.

Can rear brakes bleeding became a nightmare? I have a bias valve installed inline with the rear brakes to adjust rear braking, but braking hard on the middle of a corner isnt a problem with the valve full opened.

-Front: 325 discs, 325 calipers and EBC orangestuff pads.
-Rear: Stock 318ti discs, e32 calipers and stock used pads.

Next step, replace rear pads?

Thanks!
lahondal
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