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Project GD STI, Designing a Stoptech Rear big brake kit with BD Engineering

  • Mike Kojima

The scanning didn’t take that long, putting the car on the lift, and pulling off the wheel and caliper took longer!  Nikita went home and by that evening he had designed the bracket!  I was skeptical that it would fit perfectly.  Every time we have done this in the past the design had to have some fudge room in it so it could be hand fitted if it was a few thou off.  In this rendering, you can see how low-profile and complicated the bracket had to be.

Nikita sent the CAD file off to a CNC job shop he uses for prototype work and literally in a few days we had our parts!   Machined from 7075 aluminum they are simply beautiful!  You can see how low profile and full of compound curves they have to be to fit!  If you have installed big brake kits on other cars you know what we mean.

Will these wonder parts fit?  Is Nikita’s cockyness justified?  Stay tuned!

Sources

BD Engineering

Stoptech

Related

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Related Topics
  • Subaru
  • Stoptech
  • Big Brakes
  • big brake kit
  • 3D Printing
  • Subaru STI
  • BD Engineering
  • 3D Scanning
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  • additive manufacturing
  • CNC machining
  • Subaru GD STI
  • GD STI rear big brake kit
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5 comments
  1. Khiem Dinh says:
    July 3, 2023 at 1:52 pm

    They’ll fit! When you have that high resolution and quality of scan, it’s basically like working with the native 3D cad models. Excited to see how this turns out.

    Reply
  2. Spec R says:
    July 8, 2023 at 1:01 am

    whats wrong with the factory Brembos (that all the fanboys love)?

    Reply
    1. Avatar photo Mike Kojima says:
      July 9, 2023 at 6:49 am

      We are running much bigger brakes as the car has 2x the power of the stock STI.

      Reply
  3. Mitch says:
    July 11, 2023 at 12:18 pm

    Is 7075 the best material to use? What others would work?

    metallurgy is a fascinating topic.

    Reply
    1. Avatar photo Mike Kojima says:
      July 11, 2023 at 3:42 pm

      For something that isn’t welded yes.

      Reply

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