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Is my setup the reason I'm slow in iRacing?

By Shane Lowry · updated 2026-09-28

The short answer

Almost certainly not. If you cannot describe your car's weakness in one sentence, you are not ready to change anything — and below roughly 2000 iRating the setup is not what is costing you the time. The baseline every car ships with is honest, if not perfect. The setup should reward good habits, not hide bad ones.

The setup is not your lap time. You are.

It is easy to burn three hours chasing half a tenth in rear toe when the real problem is braking twenty metres too late into turn one. The tyres are forgiving, but they will not fix a foot that is scared of the pedal.

Master the baseline before you touch a single click

Every car on iRacing ships with a baseline tested by the devs and the aliens. It is not perfect. It is honest.

Run it for a full practice session — not five laps, not until you get bored. Learn where the car understeers on entry, where it snaps on exit, and where you are leaving time because you are late on the wheel. Write it down.

The trap: tuning away a skill gap

You are losing time because you brake too deep, so you soften the front bar to mask it. Now the car feels better — and you have just taught yourself to brake late forever. That is not a setup fix. That is a band-aid on a broken leg.

If you are spinning on exit, ask yourself whether you are too early on the throttle, or whether the rear is genuinely loose. Most of the time it is the first one.

Before you change the car, ask yourself one question: have I earned the right to change this car?

Where this comes from: this answer is drawn from section 8 of the Setup Philosophy: Fix the Driver Before the Car — part of the BustaWrench Guide, 57 plain-English sim racing and setup lessons.

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