iRacing Season 4 2026 Week 1!
iRacing18 September 2026

iRacing Season 4 2026 Week 1!

Season 4 Week 1 is here. HYMO has setups ready across the major sports car and single-seater series. Here's the full breakdown of what's covered and the reference lap times behind this week's setups.

IMSA - Indianapolis

Track Guide: GTP - Indianapolis

Track Guide: GTD - Indianapolis

Indianapolis Road Course at 71F with 7 mph SW wind and 68% partly cloudy conditions. The Porsche 963 leads GTP at 1:14.941, just 0.088s ahead of the Aston Martin Valkyrie AMR-LMH. Ferrari sets the GT3 benchmark with a 1:22.613.

  • Porsche 963 GTP - 1:14.941
  • Aston Martin Valkyrie AMR-LMH - 1:15.029
  • Ferrari 499P - 1:15.094
  • BMW M Hybrid V8 Evo GTP - 1:15.223
  • Acura ARX-06 GTP - 1:15.291
  • Cadillac V-Series.R GTP - 1:15.450
  • Dallara P217 LMP2 - 1:18.756
  • Ferrari 296 GT3 - 1:22.613
  • Porsche 992 GT3 R - 1:22.701
  • McLaren 720S GT3 EVO - 1:22.738
  • Chevrolet Corvette Z06 GT3.R - 1:22.749
  • Aston Martin Vantage GT3 - 1:22.773
  • BMW M4 GT3 EVO - 1:22.793
  • Mercedes AMG GT3 - 1:22.814
  • Acura NSX GT3 EVO 22 - 1:22.833
  • Lamborghini Huracan GT3 EVO - 1:22.900
  • Ford Mustang GT3 - 1:22.923

GT Sprint - Silverstone

Track Guide: GT3 - Silverstone

Silverstone GP at 67F with 6 mph SW wind and 73% mostly cloudy conditions. The Ferrari 296 GT3 leads at 1:57.015, with the Mercedes AMG GT3 only 0.053s behind. The first nine cars are separated by less than half a second.

  • Ferrari 296 GT3 - 1:57.015
  • Mercedes AMG GT3 - 1:57.068
  • BMW M4 GT3 EVO - 1:57.189
  • Chevrolet Corvette Z06 GT3.R - 1:57.247
  • McLaren 720S GT3 EVO - 1:57.333
  • Lamborghini Huracan GT3 EVO - 1:57.353
  • Aston Martin Vantage GT3 - 1:57.426
  • Porsche 992 GT3 R - 1:57.457
  • Acura NSX GT3 EVO 22 - 1:57.462
  • Ford Mustang GT3 - 1:57.759
  • Audi R8 LMS GT3 EVO II - 1:57.798

Falken Tyre Sports Car - Silverstone

Track Guide: GT4 - Silverstone

Silverstone GP at 66F with 12 mph W wind and 87% mostly cloudy conditions. The Ligier JS P320 runs a 1:52.481 in LMP3. GT4 is extremely close, with the Mercedes, Aston Martin and Porsche separated by only 0.031s at the front.

  • Ligier JS P320 - 1:52.481 (LMP3)
  • Mercedes AMG GT4 - 2:09.200
  • Aston Martin Vantage GT4 - 2:09.225
  • Porsche 718 GT4 - 2:09.231
  • McLaren 570s GT4 - 2:09.380
  • BMW M4 EVO GT4 - 2:09.455
  • Ford Mustang GT4 - 2:09.488

Production Car Challenge - Hockenheim

Hockenheimring Outer has four cars covered for Week 1. The BMW M2 Racing G87 leads the reference times at 1:43.255, ahead of the Toyota GR86.

  • BMW M2 Racing (G87) - 1:43.255
  • Toyota GR86 - 1:45.821
  • Renault Clio - 1:47.611
  • Global Mazda MX-5 Cup - 1:48.437

Sports Car Single Series

Track Guide: PCup - Road Atlanta

Four cars across four different tracks this week. The Porsche 992.2 Cup heads to Road Atlanta, while the Caterham 420R runs Oulton Park International.

  • Porsche 992.2 Cup - 1:19.043 (Road Atlanta Full Course)
  • Caterham 420R - 1:41.853 (Oulton Park International)
  • BMW M2 Racing (G87) - 1:17.991 (Summit Point Raceway)
  • Global Mazda MX-5 Cup - 2:09.947 (Daytona Road Course)

Single Seaters

Five cars across five tracks for Week 1. Super Formula runs Interlagos, SFL goes to Watkins Glen and IndyCar takes on Long Beach.

  • Super Formula - 1:14.931 (Autódromo José Carlos Pace GP)
  • Super Formula Light - 1:34.501 (Watkins Glen Classic Boot)
  • Formula 3 - 1:38.978 (VIR Full Course)
  • IndyCar - 1:06.308 (Long Beach)
  • FF1600 - 2:35.233 (Spa Bike)

GTE Sprint - Nürburgring

GTE Sprint heads to the Nürburgring Combined Gesamtstrecke 24h layout. The Corvette C8.R GTE sets the fastest reference at 7:47.528, with the Ford GT GTE just 0.224s behind.

  • Corvette C8.R GTE - 7:47.528
  • Ford GT GTE - 7:47.752
  • Ferrari 488 GTE - 7:48.319
  • Porsche 991 RSR - 7:49.150
  • BMW M8 GTE - 7:50.320

HYMO Coverage

Week 1 covers IMSA, GT Sprint, Falken Tyre Sports Car, Production Car Challenge, GTE Sprint and a wide range of single-car series. HYMO PRO gives you access across the covered series, with Car Access available if you only need setups for a specific car.

HYMO highlight: Week 1 setups are built around the exact reference laps and conditions listed above.

TL;DR

  • IMSA opens at Indianapolis, with the Porsche 963 setting the GTP benchmark at 1:14.941.
  • Ferrari leads GT3 in both IMSA at Indianapolis and GT Sprint at Silverstone.
  • GT4 at Silverstone is tight. Just 0.031s separates the top three cars.
  • Single-seater coverage includes Super Formula, SFL, F3, IndyCar and FF1600.
  • GTE Sprint runs the Nürburgring 24h layout, led by the Corvette C8.R at 7:47.528.

Get your Week 1 setups at hymosetups.com.