Bm57 > Non-abs?

[Arkhaeon]

I've got a non-ABS S13 with R34 GT-t brakes all-round, and am obviously lacking an adequate BMC. I love a very firm pedal, so bigger is better for me - Logical option, BM57 (1 1/16")

As far as I can tell, these were only made for ABS use, thus will have 2 outputs.. With me needing 3.

Can anyone shed some light as to my options? Looking at an R33 ABS BMC, it appears there is a blank face where the third line would go - can this be tapped and run like normal?

Can I just run a T piece out of the one front line output?

Google has failed me on this one, so I need some help

Also - can anyone tell me what BMC the R34 GT-ts use? I found the info for every model BUT the 34GTT.

Thanks!

-Luke

[Arkhaeon]

With the help of Wing, we have come to a few conclusions thus far;

- all BM57s are 2port only

- they have the 3rd port there as a blank

- proportioning is the same between ABS and non-ABS

Now, I need to FIND a BM57.. Then I have to work out if I will drill and tap, or add a T piece.

[Arkhaeon]

Also, some BM57s have a solid blank (need to drill and tap), and some have a grommet (pre-drilled).

Do we know which car has which BMC?

[Risking]

Add a T peice to the front line.

You cant drill and tap the fitting as there is a flare seal on the inside of the master that the line needs to seal on. You could use a banjo bolt but a t peice will work just fine.

The proportioning valve in a BM57 will work fine with the brakes that you have Luke.

However 1 and 1/16ths is too big.

A firm hard pedal does not always mean better stopping. You'd have a slightly softer pedal but much better brake modulation with a 1 inch tandem master.