Ligier JS P217
| Category | Le Mans Prototype 2 | ||||
|---|---|---|---|---|---|
| Constructor | Onroak Automotive | ||||
| Predecessor | Ligier JS P2 | ||||
| Technical specifications | |||||
| Chassis | Carbon fibre monocoque | ||||
| Suspension (front) | Double wishbones with pushrod and torque rod-activated dampers | ||||
| Suspension (rear) | Double wishbones with spring-activated dampers | ||||
| Length | 4,745 mm (186.8 in) | ||||
| Width | 1,900 mm (75 in) | ||||
| Wheelbase | 3,010 mm (119 in) | ||||
| Engine |
Gibson GK-428 4.2 litre V8 Nissan 3.8 litre V6 twin turbo (for DPi prototype) longitudinal mid-mounted configuration |
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| Transmission | Hewland TLS-200 6-speed sequential gearbox magnesium casing sequential manual transmission | ||||
| Power | 600 HP | ||||
| Weight | Appr. 930 kg (2,050 lb) | ||||
| Tyres | Michelin, Dunlop, or Continental | ||||
| Competition history | |||||
| Notable entrants |
 PR1/Mathiasen Motorsports Tockwith Motorsports Panis Barthez Competition Algarve Pro Racing IDEC Sport Racing United Autosports Tequila Patrón ESM
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| Constructors' Championships | 0 | ||||
| Drivers' Championships | 0 | ||||
The Ligier JS P217 is a Le Mans Prototype built by Onroak Automotive and named in a partnership with former French racing driver Guy Ligier. The Ligier JS P217 was built to meet the 2017 FIA and ACO regulations for 2017 for the LMP2 category in the FIA World Endurance Championship. The car also meets the regulations for the International Motor Sports Association’s (IMSA) WeatherTech SportsCar Championship for the Prototype class. It is active in both these championship series as well as the European Le Mans Series and Asian Le Mans Series in 2017. The prototype made its racing debut at the 2017 24 Hours of Daytona and its FIA World Endurance Championship debut at the 6 Hours of Spa-Francorchamps.
The Liger JS P217 was conceived in 2016 in preparation for the FIA and ACO's new regulation changes in 2017. Onroak Automotive built a brand new chassis from scratch and focused on improving the mechanics of the car from the Ligier JS P2. Onroak and technical partners focused on the air cooling of the engine radiators and brakes and cockpit air conditioning. The mechanical features of the car that were concentrated on was the implementation of a new axle, nut, and rim to lessen the time of tire changes, the efficiency of the axles, weight distribution, accessibility of mechanics at the front of the cockpit, aerodynamic efficiency, LMP1 style power steering, and a limited number of chassis pieces. The driver's comfort, space, controls accessibility, and visibility also was paid attention to as well.
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