Patagonia Sim RacingPatagoniaSim Racing
Patagonia Sim Racing · Free diagnosis

F1 25: understeer on corner exit — what to change

What it feels like

As you get on the throttle the car pushes wide and runs out of road on exit.

Why it happens and what we're after

Exit understeer: lower on-throttle diff lock (less lock lets the car rotate more) and stiffen the rear bar a touch.

What to change, exactly

Ranges, steps and defaults are the REAL ones for this sim. The amount is expressed in the game's own unit so you can apply it without converting anything.

Parameters flagged as “estimated range” do not come from a verified in-game capture: the direction of the change is right, the exact magnitude may differ on your car.

  1. 1.Differential on-throttle

    Lower ↓ by 2 %2 slider stepsestimated range

    Range: 10 – 100 % · Default: 60 %

    How much the differential locks under acceleration, 10% (unlocked) to 100% (locked) range (source: community guide). Typical published F1 25 values: 55-75% depending on track and preference.

    What changes when you move it this way

    Less lock: the car rotates more and the inside wheel spins sooner, with less pure exit traction.

  2. 2.Rear anti-roll bar

    Raise ↑ by 11 slider stepestimated range

    Range: 1 – 21 · Default: 10

    Rear axle roll resistance, same 1-21 scale as the front. Along with the front it sets the car's stiffness balance.

    What changes when you move it this way

    Stiffer rear: a more responsive rear axle, with less relative rear grip.

How to apply it without losing your afternoon

  1. 01Change ONE thing at a time and run three clean laps before judging. Two changes at once and you no longer know which one worked.
  2. 02Start with the first parameter on the list: they are in the order the engine applies them, from the one with most authority to the fine tuning.
  3. 03If the change goes the right way but falls short, repeat the same step again before touching another parameter.
  4. 04If it gets worse, put it back. A setup you don't understand is slower than a baseline you do.

Where this sim stores its setups

F1 25 lets you save named setups from the garage screen itself (an in-game feature widely documented by community guides). No public source was found confirming an exportable on-disk file format: the verified way to share a community setup is to copy the values by hand from dedicated hubs like F1Laps.

Want the exact values, not just the direction?

The generator takes your car, your track, the weather, grip and fuel, and returns the full setup with the reasoning behind every number. Free to start.

Car classes covered in this sim: Fórmula 1 (temporada 2025)

Free to start: you only need an account, no card.

If that wasn't it

Symptoms get confused with each other: what feels like poor traction is very often oversteer on throttle. These are the other diagnoses for this sim.

The same problem in other sims

Same symptom, different parameters: each game exposes different sliders, with other units and other ranges.