Wilwood front disc kit help

Discussion in 'Suspension, Steering, Brake & Wheel Topics' started by Bi11, Dec 7, 2020.

  1. Bi11

    Bi11 New Member

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    Gents, I upgraded to this kit from Summit https://www.summitracing.com/parts/rsd-rcp79s along with a new, stock replacement MC (1.2 inch bore) with vacuum booster. Bled the lines thoroughly and the pedal is very firm, but I have pretty weak stopping power. The calipers are functioning as they should and I bench bled the MC before installing it. What gives? Do I need a smaller bore MC? Is it because I haven't broken in the new rotors and pads? At this point I don't feel safe driving it on the road to break them in. Thanks for the help. IMG_0973.jpg IMG_0922.jpg
     
  2. dcozzi

    dcozzi Veteran Member

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    Is the vacuum booster working?
     
  3. Bi11

    Bi11 New Member

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    Going to test on it today and find out. I assume I can try it with and without the vacuum line hooked up to confirm. Does that sound right?
     
  4. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Don't see why not. Plug the vacuum line at the carburetor/intake, you may have a different idle speed. Also do this at a very low speed, like while still in your driveway.
     
  5. flybye70ss

    flybye70ss Veteran Member

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    My Wilwoods needed to be bedded before they stopped well at all.
     
  6. badazz81z28

    badazz81z28 Veteran Member

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    For maximum performance I agree, but should work right out of the box. Questioning their function and your means to stop is a matter of an issue, not pads being embedded.
     
  7. Bi11

    Bi11 New Member

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    I'll test on her this weekend and report back. The weak link in all this is the vacuum booster, it is the only thing that I have not replaced. Getting the windshield installed today, so I can actually drive it without getting frost bite. LOL
     

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