Jump to content
SAU Community

Pedal Travel; R32 Gtr With 6pot Ap Racing

josh23457
 Share

Recommended Posts

josh23457 Enthusiast

josh23457

Posted
Posted

Hey guys,

installed the front 360mm front rotors with matching 6 pot ap racing brakes on the gtr a while ago but seems as its been in the workshop for so long only just got to use them. I didnt update the master cylinder at all... the problem i am having is that there is about 1cm of travel between the breaks been on fully and not on at all. The travel is right at the top and the pedal, and it is rock hard... i would have thought that as i didnt upgrade the master cylinder then it may have been the other way round as in a long pedal!!! any help please its a little hard to drive being so sensitive...

thanks

paulR32gtr Mentor

paulR32gtr

Posted
Posted (edited)

Sounds like you have the ever elusive hard R32 GTR brake pedal. Sounds like they did a good job putting them on and the rest of your system is in good nic.

I have alcons on mine and still suffering from too much travel - going to get in and bleed them again this weekend, if that still does not help going to try a new master cyl.

I would say you will get used to them fairly quickly. My evo daily is much the same and it can be interesting switching between cars back to back but find I adapt pretty quickly.

Did you put AP's on the rear as well or still standard?

Edited by paulR32gtr
djr81 Grand Master

djr81

Posted
Posted
Hey guys,

installed the front 360mm front rotors with matching 6 pot ap racing brakes on the gtr a while ago but seems as its been in the workshop for so long only just got to use them. I didnt update the master cylinder at all... the problem i am having is that there is about 1cm of travel between the breaks been on fully and not on at all. The travel is right at the top and the pedal, and it is rock hard... i would have thought that as i didnt upgrade the master cylinder then it may have been the other way round as in a long pedal!!! any help please its a little hard to drive being so sensitive...

thanks

Well think about what you have done to the brakes.

The rotor is much larger in diameter 290ish vs 360mm. So there is 20% more torque for a similar amount of force.

The CP5555 (I guess that is the calliper?) has a smaller piston area than a Sumitomo & will be stiffer. Which aligns with what you are observing.

josh23457 Enthusiast

josh23457

Posted
  • Author
Posted

Well only did the front for the moment and wanted to see how they went.. the brakes themselves are just fanatstic, used to going through a set of pads in about 15-20 laps so these are so strong and wear so much better. Just a bit hard drving on the track with such a hard pedal especially in the wet, modulation is just a bitch!!! If i was to go for an afterarket pedal box would this do anything to change the feel or would that just move the travel of 1cm up and down the length of the pedal.....

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

    • Black_CSR
      Wheel Sizes & Offsets For Skylines

      By Black_CSR · Posted

      ok so if i wanted to go 18's i would go for 8's  in front 30+ or 32+ off set at front and the back 9 would be ok? what offset should i aim for.. then can i do some  hunting for wheel rim choices..    If i get this - will this fit all around: Size: 18 x 8.5 +37 - n what tyres size tyre should i get for front n back?  
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      Absolute f*cking nightmare. I had to take breaks constantly, and I was always pissed off when I got home. The line split in Italy on day 2 (we drove from the Netherlands), lol. Driving any narrow European town was... well, sh*t.   Appreciate it man. Here, I'll just drop a favourite from the load I took on Saturday.   I'll update here when things happen with the car, the thing is, with stock power and almost everything chassis-wise taken care of, there really are no problems. 268,000kms now and counting.  
    • Kinkstaah
      WTB R34 GTR Guard Liners

      By Kinkstaah · Posted

      Ah! I actually managed to snag a lightly used set.... that aren't so suitable for me right now. They don't work on a GTT without some cutting or creative heat moulding. I thought about reselling them myself cause I didn't want to murder them, but it looks like I'm probably going to attempt to murder them/melt them because I may as well. @GTSBoy @PranK can somebody close this thread?
    • itsmeyo
      WTB R34 GTR Guard Liners

      By itsmeyo · Posted

      Hey mate,  I have a set, one is slightly damaged but wont be noticable once installed.  Shoot me a message if your still after them 
    • The Bogan
      NC MX5

      By The Bogan · Posted

      I couldn't wait But, the black constant tension hose clamps were too thick and there wasn't enough clearance at the T/B and I couldn't get it to seat properly, so I had use a silver one there I also added some 3" silicone over the alloy bit that goes through to hole on the radiator support as it looked like it was sitting on the edge of the hole in the radiator support, I never noticed a rattle or anything, but there was a witness mark It is basicly done, and I can live with the silver hose clamp at the T/B, I will get a black clamp for the head vent though where it is attached to the bulkhead fitting  It never stops...LOL, only issue now with the shock tower brace is it slightly touches the under bonnet liner now, if I leave it it will either wear some paint off the brace where it touches, or damage the liner, so I removed the liner to see what I have to work with, with the liner removed I have about 20mm of clearance, but sadly the middle part of the underside of the bonnet is only dusted with paint and looks crap, so I cannot have that, but.... as I have a roll of Carbuilders premium under bonnet insulation in the garage laying around that is only 5.5mm thick (we were going to use it on the boys Patrol, but he crashed the front of it a few months and it was written off, hence why he now drives my old Honda Accord Euro), I'll use the OEM liner as a template and get the Carbuilders stuff fitted up to cover that dusted paint up
×
×
  • Create New...