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Race Brakes Sydney Street and race performance pad / rotor combinations as well as brake upgrades and Exedy clutch kits. Website Link

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Old 20-05-2016, 11:28 AM   #1
Octane_Flash
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Default Brembo disc thickness

Could someone advise me what is the minimum wear thickness of a Brembo front disc before it needs replacing? I have 4/1 set up on my FGII XR6T.
Also, are these disc machineable?
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Old 20-05-2016, 12:00 PM   #2
falconhell74
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Default Re: Brembo disc thickness

The min thickness will be stated on the top of the disk , yes they are machinable if within tolerance
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Old 20-05-2016, 12:22 PM   #3
Octane_Flash
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Default Re: Brembo disc thickness

Thanks for that.
I'll the calipers out and measure it this weekend.



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Originally Posted by falconhell74 View Post
The min thickness will be stated on the top of the disk , yes they are machinable if within tolerance
image
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Old 20-05-2016, 12:31 PM   #4
falconhell74
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Default Re: Brembo disc thickness

you will need a micrometer preferably or a vernia aslong as the lip isn't too big
standard vernier
disk brake vernier
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XC GS OLD SCHOOL MUSCLE

Audi A4 S-line quttro
Xc falcon
Previous fords-
xc falcon 500 ,250 x flow 3 speed
xc gs worked 250 x flow 4 speed
xa Fairmont 302 auto wagon
xb falcon 250 log auto 4 door
xb falcon 200 log auto ute
xc gs project - had to sell :-(
xc gs 302 4 speed 4 door
xc gs 351 auto 4 door
zf fairlane 302 auto
zk fairlane 250 x flow carb auto
zl fairlane 250 x flow EFI auto
xg ute , BA falcon dedicated gas
xd, xf x 3 ,ea,eb,ef,au x 3,telstar tx5
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Old 20-05-2016, 07:56 PM   #5
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Default Re: Brembo disc thickness

Or just use a washer etc on each side of the disc (not on the rotor lip).
Measure. Then subtract washers thickness
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Old 21-05-2016, 04:10 PM   #6
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Default Re: Brembo disc thickness

I measured up the disc and I have 31.3mm left. I used Blem's idea of the two washers to avoid measuring the lip.
I also found out that I have a DBA rotor instead of the Brembo so the cops must have replaced the front set a while ago. The min thickness written on the disc was 30mm. There is still about 5mm of material on the pads.

So, is there enough meat on the disc for a light machine? There are only light grooves on the face
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Old 21-05-2016, 09:16 PM   #7
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Default Re: Brembo disc thickness

If they are 355mm rotors with either 4 or 6 pot Brembos, the rotors are 32mm with a minimum of 30mm. As long they are over 30mm, you can get them machined.
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Old 22-05-2016, 11:39 AM   #8
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Default Re: Brembo disc thickness

yes machineable as I assume there is no major shuddering or brake pedal pulsation indicating a warped disk.
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XC GS OLD SCHOOL MUSCLE

Audi A4 S-line quttro
Xc falcon
Previous fords-
xc falcon 500 ,250 x flow 3 speed
xc gs worked 250 x flow 4 speed
xa Fairmont 302 auto wagon
xb falcon 250 log auto 4 door
xb falcon 200 log auto ute
xc gs project - had to sell :-(
xc gs 302 4 speed 4 door
xc gs 351 auto 4 door
zf fairlane 302 auto
zk fairlane 250 x flow carb auto
zl fairlane 250 x flow EFI auto
xg ute , BA falcon dedicated gas
xd, xf x 3 ,ea,eb,ef,au x 3,telstar tx5
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Old 22-05-2016, 12:11 PM   #9
Octane_Flash
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Default Re: Brembo disc thickness

Quote:
Originally Posted by falconhell74 View Post
yes machineable as I assume there is no major shuddering or brake pedal pulsation indicating a warped disk.
No shuddering. The car pulls up straight
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Old 23-05-2016, 06:10 PM   #10
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Default Re: Brembo disc thickness

Quote:
Originally Posted by Octane_Flash View Post
I measured up the disc and I have 31.3mm left. I used Blem's idea of the two washers to avoid measuring the lip.
I also found out that I have a DBA rotor instead of the Brembo so the cops must have replaced the front set a while ago. The min thickness written on the disc was 30mm. There is still about 5mm of material on the pads.

So, is there enough meat on the disc for a light machine? There are only light grooves on the face
Wait for the pads to be replaced before you machine them i mean you only have about 3mm before replacing them anyway and plus the pads will be worn they shape of the rotor which makes bedding into the machined surface a bit harder to do.
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