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A3 312mm Brake upgrade

drewman Apr 29, 2014

  1. drewman

    drewman Registered User

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    Been looking into this and from memory you just need calliper carriers and 312 discs but this lead me to wonder how it improves braking.

    Am I being really stupid in saying if you're using the same pads, you're biting on the same amount of disc so shouldn't increase stopping power?
    Or is it to do with cooling? :uhm:
     
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  3. Joshstan

    Joshstan Registered User

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    A larger disc has a larger mass so therefore increases the time it takes to heat up and secondly a larger disk with the calipers spaced out provides more braking force as you are pinching further away from the centre of the hub thus giving more leverage if you catch my drift
     
  4. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator

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    Larger disc = more leverage for same effort...

    <tuffty/>
     
  5. Gary_808

    Gary_808 Registered User

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    If you upgrade, to offset the cost I'll purchase your old carriers :)
     
  6. drewman

    drewman Registered User

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    Gotcha! Cheers

    Gary: Depends how desperate you want them, I may not upgrade for a couple of months! Can bare you in mind if you like, pm you when i do it?
     
  7. Prawn

    Prawn My other car is a MINI!!!!

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    I have a set of 312mm carriers if anyone is looking for some :) PM me for info :)
     
  8. J44KWED

    J44KWED Registered User

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    I have a pair of callipers off my 8L 1.8T 1998 AGU. PM me if interested too! :yes:
     
  9. Syvo

    Syvo IF IN DOUBT GO FLAT OUT

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    I have a set of callipers with carriers also have hel braided lines, brembo max 312 discs and ds2500 pads all for £120 pm me if ur interested would have to collect or arrange courier
     
  10. Sam Dennis

    Sam Dennis Registered User

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    Out of curiosity, did you ever get this done ?
     
  11. drewman

    drewman Registered User

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    Yep, still on the car 6 years later :grinning:. Got your PM & replied!
     
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  13. b2

    b2 Registered User

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    I have done the 312mm swap and its an improvement over stock on road but put it around a track and you soon realise how average it is, did the job but could be better.
     

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