iRacing Season 4 2026 Week 4!
iRacing10 October 2026

iRacing Season 4 2026 Week 4!

iRacing Season 4 2026 Week 4!

Season 4 Week 4 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 – Red Bull Ring

Red Bull Ring Grand Prix at 72°F with 6 mph NE wind and 64% mostly cloudy conditions. The Aston Martin Valkyrie AMR-LMH leads GTP at 1:18.968, just 0.046s ahead of the Porsche 963. Ferrari sets the GT3 benchmark with a 1:28.180, only 0.023s ahead of the McLaren 720S GT3 EVO.

  • Aston Martin Valkyrie AMR-LMH – 1:18.968

  • Porsche 963 GTP – 1:19.014

  • Ferrari 499P – 1:19.284

  • Cadillac V-Series.R GTP – 1:19.290

  • Acura ARX-06 GTP – 1:19.291

  • BMW M Hybrid V8 Evo GTP – 1:19.330

  • Dallara P217 LMP2 – 1:23.735

  • Ferrari 296 GT3 – 1:28.180

  • McLaren 720S GT3 EVO – 1:28.203

  • Lamborghini Huracan GT3 EVO – 1:28.253

  • BMW M4 GT3 EVO – 1:28.258

  • Aston Martin Vantage GT3 – 1:28.281

  • Chevrolet Corvette Z06 GT3.R – 1:28.294

  • Acura NSX GT3 EVO 22 – 1:28.330

  • Porsche 992 GT3 R – 1:28.494

  • Mercedes AMG GT3 – 1:28.505

  • Ford Mustang GT3 – 1:28.650

GT Sprint – Motegi

Mobility Resort Motegi Grand Prix at 83°F with 4 mph NE wind and 53% partly cloudy conditions. The Porsche 992 GT3 R leads the field at 1:49.393, with the Mercedes AMG GT3 following at 1:49.613. The top five cars are separated by just 0.304s.

  • Porsche 992 GT3 R – 1:49.393

  • Mercedes AMG GT3 – 1:49.613

  • Lamborghini Huracan GT3 EVO – 1:49.633

  • Acura NSX GT3 EVO 22 – 1:49.670

  • Ferrari 296 GT3 – 1:49.697

  • Audi R8 LMS GT3 EVO II – 1:49.711

  • Chevrolet Corvette Z06 GT3.R – 1:49.752

  • BMW M4 GT3 EVO – 1:49.816

  • McLaren 720S GT3 EVO – 1:49.906

  • Aston Martin Vantage GT3 – 1:50.104

  • Ford Mustang GT3 – 1:50.110

Falken Tyre Sports Car – Road Atlanta

Road Atlanta Full Course at 75°F with 6 mph NW wind and 68% partly cloudy conditions. The Ligier JS P320 sets the LMP3 reference at 1:13.896. Mercedes leads GT4 with a 1:23.919, just 0.021s ahead of the McLaren 570s GT4. Only 0.059s separates the top five GT4 cars.

  • Ligier JS P320 – 1:13.896 (LMP3)

  • Mercedes AMG GT4 – 1:23.919

  • McLaren 570s GT4 – 1:23.940

  • Porsche 718 GT4 – 1:23.972

  • Aston Martin Vantage GT4 – 1:23.975

  • BMW M4 EVO GT4 – 1:23.978

  • Ford Mustang GT4 – 1:24.211

Production Car Challenge – Oschersleben

Production Car Challenge heads to the Motorsport Arena Oschersleben Grand Prix layout at 66°F with 7 mph W wind and 62% partly cloudy conditions. The Toyota GR86 sets the fastest reference at 1:35.211, just 0.101s ahead of the BMW M2 Racing G87.

  • Toyota GR86 – 1:35.211

  • BMW M2 Racing (G87) – 1:35.312

  • Renault Clio – 1:38.268

  • Global Mazda MX-5 Cup – 1:38.845

Sports Car Single Series

Four cars across four different tracks for Week 4. The Porsche 992.2 Cup heads to Mount Panorama, the Caterham 420R runs Snetterton 200, the BMW M2 Racing G87 takes on Oulton Park and the Global Mazda MX-5 Cup heads to Long Beach.

  • Porsche 992.2 Cup – 2:00.795 (Mount Panorama Circuit)

  • Caterham 420R – 1:13.615 (Snetterton Circuit 200)

  • BMW M2 Racing (G87) – 1:47.553 (Oulton Park Circuit International)

  • Global Mazda MX-5 Cup – 1:33.392 (Long Beach Street Circuit)

Single Seaters

Five cars across five different tracks for Week 4. Super Formula heads to Sebring, while Super Formula Light runs the Autódromo Hermanos Rodríguez Historic Grand Prix layout. Formula 3 takes on Fuji, IndyCar heads to Qualcomm Circuit at Naval Base Coronado and FF1600 runs the Watkins Glen Boot layout.

  • Super Formula – 1:35.663 (Sebring International Raceway International)

  • Super Formula Light – 1:24.731 (Autódromo Hermanos Rodríguez Grand Prix Historic)

  • Formula 3 – 1:32.440 (Fuji International Speedway Grand Prix)

  • IndyCar – 1:39.209 (Qualcomm Circuit, Naval Base Coronado)

  • FF1600 – 1:58.571 (Watkins Glen International Boot)

GTE Sprint – Barcelona

GTE Sprint heads to the Circuit de Barcelona Catalunya Historic layout at 73°F with 12 mph S wind and 73% partly cloudy conditions. The Ford GT GTE sets the benchmark at 1:37.672, just 0.007s ahead of the Corvette C8.R GTE. Only 0.243s separates the full five-car field.

  • Ford GT GTE – 1:37.672

  • Corvette C8.R GTE – 1:37.679

  • BMW M8 GTE – 1:37.760

  • Porsche 991 RSR – 1:37.804

  • Ferrari 488 GTE – 1:37.915

HYMO Coverage

Week 4 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 4 setups are built around the exact reference laps and conditions listed above.

TL;DR

  • IMSA heads to the Red Bull Ring, with the Aston Martin Valkyrie AMR-LMH leading GTP at 1:18.968 and the Ferrari 296 GT3 setting the GT3 benchmark at 1:28.180.

  • GT Sprint runs Motegi, where the Porsche 992 GT3 R leads with a 1:49.393.

  • Falken Tyre runs Road Atlanta, with the Ligier JS P320 at 1:13.896 and Mercedes leading GT4 at 1:23.919.

  • Production Car Challenge heads to Oschersleben, with the Toyota GR86 leading at 1:35.211.

  • Sports Car Single Series includes Porsche Cup at Mount Panorama, Caterham at Snetterton, BMW M2 at Oulton Park and Mazda MX-5 at Long Beach.

  • Single-seater coverage includes Super Formula, SFL, F3, IndyCar and FF1600 across Sebring, Mexico City, Fuji, Qualcomm Circuit and Watkins Glen.

  • GTE Sprint runs Barcelona, with just 0.007s separating the Ford GT GTE and Corvette C8.R GTE.

Get your Week 4 setups at hymosetups.com.