About Corner Lab
Corner Lab answers one question: the car is doing something at a corner, so what do you change first? It ranks the setup changes worth trying for that car at that corner, with the step size to move and what each one costs you elsewhere.
How the ranking works
Every symptom has a default order — what to try, generally, when a car is doing that. Two things then re-weight it: the car's archetype, which is where its engine sits and how much downforce it makes, and what the corner itself demands. A slow hairpin and a fast sweeper ask different things of the same car, so they get different answers.
Anything your car's garage does not let you adjust is shown struck through, with the reason, at the position it would have had. The advice does not change because of what your car exposes; knowing the best answer is out of reach tells you the next one is a compromise.
The rules are written by hand and applied the same way to every combination. It is a starting sequence, not a verdict — the car and the driver both get a say.
What it covers
18 cars across 25 circuit layouts, and 172 corners written up individually. Road and street courses only: ovals are a different setup model and pretending otherwise would be worse than leaving them out. Guidance is for dry running.
Where the information comes from
Car capabilities come from iRacing's own per-car manuals and, where it has been possible to check, from the garage as it appears in a telemetry file — which is the sim's own account of what a car exposes. Corner notes are written from driving the circuits. Nothing here is scraped from another setup site.
Where something has not been verified it is marked as such in the project's own records and kept off the site rather than published with a caveat attached. A page that keeps hedging teaches you to skim the warnings that matter.
Not affiliated
Corner Lab has no connection to iRacing.com Motorsport Simulations, or to any manufacturer, series or circuit. Car, series and circuit names are used descriptively to say which car and which corner is being discussed.
Contact
Corrections are welcome, and a specific one — this car, this corner, this is wrong — is the most useful thing you can send. Write to finn@cornerlab.ca.