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312mm Brake Upgrade - Same pad size same surface area??

Discussion in 'A3/S3 Forum (8L Chassis)' started by sekenzo, Feb 28, 2010.

  1. sekenzo

    sekenzo Member

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    I have just done my front conversion from 288mm to 312mm. Quite an easy upgrade took me about 2 hours from start to finish...

    Maybe I am just being thick... I can't help but wonder... how is going to 312 going to give better braking if the pad size is the same, which effectively still covers the same friction area on the disc?
     
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  3. adamss24

    adamss24 Well-Known Member

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    More leverage me friend ! Caliper is spaced further away from the centre of the disc wich means you will have more stopping power for the same clamping force + better heat disipation.
     
  4. badger5

    badger5 www.badger5.co.uk
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    as said leverage
     
  5. Prawn

    Prawn My other car is a MINI!!!!

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    A force applied at a right angle to a lever, multiplied by it's perpendicular distance from the pivot point, is torque. By increasing the length of the lever, a greater torque is applied at the pivot for the same input at the levers end.

    So as Adam and Bill have said above, it's leverage :)
     
  6. sekenzo

    sekenzo Member

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    Thanks for the explaination chaps :icon_thumright:
     
  7. c_dog

    c_dog Member

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    So if you add bigger pads would you still get the increased leverage?
     
  8. JS1500

    JS1500 Howdy

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    Not without bigger discs. It's the distance from the hub that equates to the leverage.
     
  9. SamiG

    SamiG On Boost, ish.

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    Do S3's come standard 288mm then? What motor does the 312mm's come from?

    Thanks
     
  10. Effect

    Effect Member

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    312mm is standard s3
     
  11. SamiG

    SamiG On Boost, ish.

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  12. MikeA3

    MikeA3 Active Member
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    LCR uses a brembo set up - 323mm if memory serves
     
  13. SamiG

    SamiG On Boost, ish.

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    Is the LCR setup a straight swap onto the S3?

    Thanks.
     

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