Video summary

3 СУППОРТА на ТОРМОЗНОЙ ДИСК - ЧТО БУДЕТ?

Main summary

Key takeaways

Product Review

Product Reviewed

A DIY brake upgrade using multiple brake calipers mounted onto a single brake disc. The video shows spacer/plate modifications and track testing of braking performance.

Key Features / What They Built

  • Target concept: Mount additional calipers on one brake disc to increase braking force.
  • Hardware shown: A new brake disc and custom mounting hardware.
  • Caliper configurations tested:
    • 1 caliper per wheel (baseline, “stock-like” setup)
    • 2 calipers per disc (adding one more caliper on each side)
    • 3 calipers per disc (maximum achieved on that hub/disc arrangement)

Mounting Constraints

  • They claim the maximum number of calipers that can fit on that disc is 3.
  • Ball joints/suspension/hub clearance prevents going beyond that limit.
  • A custom plate plus a ~24 mm spacer were used to make the calipers fit properly.
  • Some fit issues occurred:
    • One caliper/part interfered unless changed in orientation.
    • To avoid complexity, they kept components as close to stock as possible.

Pros Mentioned

  • Better braking response/efficiency when adding calipers—especially moving from the first to later configurations.
  • With more braking hardware, the car was less likely to pull to one side during braking (straight braking observed).
  • When adding one more caliper, the brakes were described as working “100%” after bleeding.

Cons / Problems Mentioned

Pedal Modulation Becomes Harder

  • With more calipers, the pedal becomes sharper: small over-presses can quickly lock wheels.
  • The driver says it’s difficult to “catch the edge” between strong braking and wheel lock without ABS.

Performance Issues at 3 Calipers per Disc

At the 3-caliper-per-disc stage, they report:

  • Inconsistent braking effectiveness
  • A small pedal “dip”
  • Brakes engaging in a narrow, sharp range
  • When releasing the pedal, braking can feel like it drops off abruptly (wheels roll immediately)
  • Harder control as the pedal goes deeper

Heat Increase

  • Disc temperature mentioned around ~90–100°C, later stabilizing near ~100°C.

Test / User Experience (Track Feel)

Baseline Run (1 caliper connected per wheel)

  • The first run was called “unsuccessful” because they forgot brake bedding/break-in.
  • After bedding, braking was:
    • Smooth
    • No left/right pull
    • But braking distance remained long because the rear brake circuit was disabled (rear brakes essentially not working).

After Adding One More Caliper per Disc (2 total per disc)

  • Pedal behavior:
    • Less pedal force needed
    • Light press activates braking quickly
  • Modulation problem:
    • Too sensitive—slight extra pedal touch leads to immediate wheel lock and skidding

At 3 Calipers per Disc (maximum fit)

  • Described as even worse:
    • Control became very difficult
    • Response felt like it happened in a sharp narrow window
    • Small pedal travel caused either:
      • too little braking, or
      • rapid lock behavior

Comparisons Made

  • The video contrasts their results with the idea that better distribution improves control.
  • They suggest that for better control, a setup like “four calipers” (two per side) would be preferable because it’s easier to meter braking.
  • They believe spreading to two calipers per side improves controllability compared to stacking three on one disc side.

Numerical / Quantitative Points Mentioned

  • Spacer thickness: 24 mm
  • Speed testing reference: braking around ~80 km/h (multiple runs)
  • Disc temperature: mentioned around ~90–112°C, later around ~100°C
  • Stopping behavior notes: speed readings around 77–80 appear in later runs, but exact braking distance in meters isn’t clearly specified.

Unique Points Mentioned (Consolidated)

  1. DIY multi-caliper installation on a brake disc.
  2. Tested 1 → 2 → 3 calipers per disc.
  3. Claim that 3 is the max due to suspension/hub clearance (ball joint/rack/bracket interference).
  4. Required custom plate and ~24 mm spacer to fit calipers.
  5. Some caliper components interfere unless modified; they avoided major changes and kept parts near-stock.
  6. First test run was impacted by forgetting bedding/break-in.
  7. Rear brake circuit was disabled, affecting stopping performance.
  8. More calipers improved effectiveness but made pedal modulation extremely sensitive.
  9. After adding one more caliper, braking was effective but locking threshold became hard to manage without ABS.
  10. With 3 calipers per disc, the attempt felt worse: pedal dip, narrow control window, inconsistent engagement, harder steering control, and rapid roll-off when released.
  11. Temperature reached roughly ~90–112°C, stabilizing near ~100°C.
  12. Suggested alternative concept: 4 calipers total (2 per side) for improved control/braking feel.

Speakers / Different Viewpoints

  • The presentation appears to be mostly single-person narration (likely the driver).
  • No clearly separated alternate viewpoints are distinguished in the subtitles.

Overall Verdict / Recommendation

Not recommended to stack up to 3 calipers per disc (at least for this specific setup and without ABS). While adding calipers can improve braking effectiveness, the key conclusion is that pedal sensitivity and controllability worsen, and their 3-caliper-per-disc configuration performed worse than the 2-caliper configuration.

A more balanced caliper layout—e.g., two calipers per side (“four calipers” concept)—is suggested as the better approach for controllability.

Original video