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Stoptech C43 Competition Front BBK Review

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Old 08-14-2018, 05:28 AM
  #21  
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Originally Posted by DanielB
Thanks for clarifying the pad height. I've reset to 40 mm in the spreadsheet. The link is in my first post but here it is again for convenience.
https://docs.google.com/spreadsheets...it?usp=sharing

With all due respect to Stoptech, their numbers should be close to the math - if not, then something is not right. Sometimes the information gets altered as it transfers from engineers to marketing people. I've had that happen far too often in my professional life to just accept numbers when they don't align with basic math and physics. Again, if you don't mind, please review the math in my spreadsheet and if there's an error, I'm happy to fix it.

FYI, I'll leave it to others to call if they choose. I already have a BBK
Are you taking piston sizing into account, or....?
Old 08-14-2018, 09:39 AM
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When I received my kit, I got black anodized rotor hats. I was just wondering if my hats we're the same part number as yours. Also do your rotor hats have the aero fins for additional cooling? Mine are just blocks and do not have the cooling fins.



Here is a good pic of what the cooling fins look like on stoptech rotor hats.





Last edited by rob.ok; 08-14-2018 at 09:47 AM.
Old 08-14-2018, 10:32 AM
  #23  

 
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Originally Posted by Ricky_Flowers_
Are you taking piston sizing into account, or....?
Yes. If you look at the spreadsheet you'll see the inputs are
  • Piston size (up to 3 pistons per side)
  • Pad height
  • Rotor Diameter
That's all you need to determine the brake torque relative to stock or any other solution.
Assumptions are listed below the table.
Old 08-14-2018, 06:22 PM
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i am sorry for the nob question but could someone explain this kit vs st40?pros vs cons . if someone is buying a kit you should definitely step up to stc43 vs st40?
Old 08-15-2018, 02:22 PM
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Yes, mine look like yours. The other picture you have is the aero rotor. I'm not sure why the color difference.
Old 09-03-2018, 07:59 PM
  #26  
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The black anodized are their "standard" hats. The gold color is for their trophy kits. The rotor in the image is a ST slotted race only disk also.

Looks like the ST C43 kit is using a whole new family of parts with that new slotting pattern.
Old 09-05-2018, 09:46 AM
  #27  
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Is this all on the OE master and booster?
Old 09-05-2018, 10:58 AM
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Yep
Old 09-07-2018, 07:10 AM
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Did stoptech indicate why they moved away from the aero/vaned rotor?
Old 09-07-2018, 12:35 PM
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Originally Posted by cracknut
Did stoptech indicate why they moved away from the aero/vaned rotor?
based on the purchasing experience of a miata friend of mine, you have a choice between the aero rotor and the pillar rotor. In ND miata size, the pillar rotor is 3lb lighter per rotor and stoptech said they only saw an 11% difference in circle track racing... So a stockish power s2k is is prolly fine with the pillar rotor, if you have boost the aero rotor might be worth the upgrade. you also have the option for a sprung floating rotor or full race style no tension spring floating rotor
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