Dallara SF23

This article is about the Super Formula chassis. For the Ferrari Formula One car, see Ferrari SF-23.

Dallara SF23

Tadasuke Makino driving a SF23 at the 2024 Super Formula Motegi round.
Category	Super Formula
Constructor	Dallara
Predecessor	Dallara SF19
Technical specifications
Engine	Honda HR-417E or Toyota TRD-01F 2,000 cubic centimetres (122.0 cu in; 2.0 L) I4 Turbocharged mid-mounted
Transmission	6 forward + 1 reverse semi-automatic paddle-shift
Power	550 brake horsepower (557.6 PS; 410.1 kW) + 51 brake horsepower (51.7 PS; 38.0 kW) (Push-to-Pass) 540 newton-metres (398.3 lbf⋅ft) + 65 newton-metres (47.9 lbf⋅ft) (Push-to-Pass)
Weight	650 kilograms (1,433.0 lb)
Brakes	Calipers: Brembo (carbon) Discs: Brembo (carbon)
Tires	Yokohama Advan
Competition history
Notable entrants	All Super Formula entrants
Notable drivers	All Super Formula entrants
Debut	2023

The Dallara SF23 is an open-wheel single-seater chassis produced by Dallara for use in the Japanese Super Formula Championship. It debuted in 2023, replacing the Dallara SF19 chassis as the main chassis used in Super Formula. ^[1]

History

The single-seater SF23 was presented on 13 December 2022. ^[2] The car was developed through seven test sessions, covering 10,000 km (6,200 mi). ^[3]

Specifications

Compared to its predecessor, the SF23 has important aerodynamic differences in order to guarantee a greater possibility of overtaking. The ailerons, bellies and bottom are modified. ^[3] Like the SF19, it is equipped with engines supplied by Honda or Toyota. ^[1]

For some components of the bodywork, materials derived from flax fiber, cork and recycled carbon fiber are used. ^[2] This allows for a 75% reduction in carbon dioxide emissions in the production process. ^[3]

Variants

EAV-24 in self-driving configuration and TII racing livery.

A modified version built for autonomous racing designated EAV-24 is in use at the Abu Dhabi Autonomous Racing League. The EAV-24 had multiple modifications for self-driving racing, including a new sensor suite with cameras, RADAR, LIDAR and GPS, as well as a Honda K20C1 engine. A manned EAV-24 configuration exists.

EAV-24 in manned configuration (without tyres).

References

1. "Super Formula confirms updated car for 2023 season". www.autosport.com. 13 December 2022. Retrieved 1 February 2024.
2. Davide Reinato (13 December 2022). "Svelata la nuova SF23 per la Super Formula". quattroruote.it. Retrieved 30 December 2022.
3. Alessandro Follis (13 December 2022). "Dallara presenta la nuova monoposto per la Super Formula giapponese". gazzetta.it. Retrieved 30 December 2022.