Jump to content
SAU Community

Brake Master Cyl Stopper

BANGN
 Share

Recommended Posts

Basti Grand Master

Basti

Posted
Posted

they brace the BMC against the strut tower directly in front of it. as a result, the firewall doesnt flex when you stomp on the brakes (which it does quite a bit as standard). less flex = a less spongy pedal, and better brake feel because the energy in your foot goes through the brake system rather than be used in bending firewall

Duncan Grand Master

Duncan

Posted
Posted

just get someone to push the brakes hard while you watch the master cylinder move...it's pretty bad!

then consider that the pistons in the brakes themselves move about 3-5mm for all of the distance the pedal travels. If the master cylinder is moving 3-5mm as well that means there is as much flex as there is actual braking in your pedal movement!

THENIG Community Regular

THENIG

Posted
Posted

Brake master cylinder stopper + braided lines + 20y.o. ABS unit + 20y.o. master cylinder = Leaky ABS & leaky master cylinder.

I know most gtst don't have abs but if it does then expect it to be the weakest link if you fit one of these & hammer your brakes.

I'm not saying they are a bad thing, I thought it was great, I will put it back on once I rebuild the ABS with new seals, gave them heaps more feel through the pedal, more so than the braided lines.

Just saying that if your 32 is original & master cylinder is pretty shabby then keep in mind that down the line if it starts leaking you will know why.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      R32 Gtst - Track Car

      By Duncan · Posted

      Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • Dose Pipe Sutututu
      R32 Gtst - Track Car

      By Dose Pipe Sutututu · Posted

      https://www.facebook.com/share/p/18rmVb1SKB/ 
    • GTSBoy
      Leak from Tokico BM50 Brake Master Cylinder

      By GTSBoy · Posted

      The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • No Crust Racing
      R32 Gtst - Track Car

      By No Crust Racing · Posted

      Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • MBS206
      R32 Gtst - Track Car

      By MBS206 · Posted

      I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...