Corner Lab

Your car, the corner, and what it's doing there — the setup changes worth trying, in order.

Corner entry

Won't turn in / pushes on entry

Understeer family

The front isn't loading fast enough as you release the brake, or the diff is holding the rear axle together and refusing to let the car yaw.

The baseline

The default order

The sequence for this symptom on no car in particular, at no corner in particular. Pick both and the order changes.

  1. 01
    Carry a little brake to the apex10 bartechnique

    Releasing the brake before you turn lets the nose rise and the front tyre go light exactly when you need it to bite.

    Too much and the entry goes loose instead. Add it a little at a time.

  2. 02
    Brake two lengths earlier2 lengthstechnique

    Most entry push is simply too much speed. The front tyre is already saturated when you ask it to turn, and no amount of steering adds grip it does not have.

    You will feel slow for a lap. Compare the exit speed, not the entry.

  3. 03
    Aim at a later apex1–2 car widthstechnique

    Turning in early makes the corner tighter than it needs to be, which is understeer you created before the corner started.

    Costs a little entry speed and returns it on exit. Worth it anywhere a straight follows.

  4. 04
    Unwind, then re-apply¼ turntechnique

    A saturated front tyre recovers grip the moment you take steering out of it. Holding more lock keeps it saturated and the car keeps pushing.

    Counter-intuitive under pressure. Practise it somewhere you have room.

  5. 05
    Brake bias rearward0.5%brake

    Puts load into the rear as you trail off, letting the car rotate under braking instead of pushing wide.

    Rear can step out on hard, straight-line stops.

  6. 06
    Less coast (deceleration) diff lock5–10%diff

    Off-throttle a locked diff drags both rear wheels at one speed and fights the yaw you're asking for.

    Snappier on trail brake, especially over bumps.

  7. 07
    More engine braking1 stepdiff · adv

    Does much the same job as coast ramp and often feels cleaner, because it doesn't change the diff on power.

    Can snap on a bumpy downhill entry.

  8. 08
    Less diff preload1–2 stepsdiff

    Preload keeps the diff partly locked even at low torque — exactly the state you're in on entry.

    Vaguer feel at low steering angle.

  9. 09
    Softer front anti-roll bar1 clickbar

    Lets the front axle roll and build slip angle, adding front grip as the car takes its set.

    Slower initial response; more roll to wait through.

  10. 10
    Softer front slow bump damping1–2 clicksdamper

    Front loads earlier in the dive, so the tyre has grip at the moment you turn in.

    Transient only — won't help at the apex.

  11. 11
    More front toe-out0.05–0.1°geo

    Cheap turn-in bite when geometry is the limit rather than balance.

    Nervous under braking and more drag.

Step sizes are a first move, not a setting. Cars differ by a factor of several in how much they respond to the same change.