Dallara P217

Dallara P217

Category	Le Mans Prototype 2
Constructor	Dallara
Technical specifications
Chassis	Carbon-fibre monocoque with aluminium honeycomb and Zylon side panels
Suspension (front)	Double Wishbone Independent Pushrod
Suspension (rear)	As Front
Length	4745mm
Width	1900mm
Wheelbase	3010mm
Engine	Dallara P217 Gibson GK-428 4.2 litre V8 Cadillac DPi-V.R ECR Engines designed, developed, and produced Cadillac LT1 5.5 litre V8
Transmission	Xtrac P1159F 6-speed sequential semi-automatic paddle-shift
Weight	930kg
Fuel	Various
Lubricants	Various
Brakes	Brembo Carbon Disks
Tyres	Michelin, Dunlop, Continental ExtremeContact (DPi-V.R), Goodyear
Competition history
Notable entrants	Dallara P217 Racing Team Nederland Cetilar Villorba Corse SMP Racing Cetilar Racing High Class Racing Thunderhead Carlin Racing AVF by Adrián Vallés Cadillac DPi-V.R Action Express Racing Wayne Taylor Racing Spirit of Daytona Racing JDC-Miller MotorSports Chip Ganassi Racing
Debut	2017 24 Hours of Daytona
Races Wins Podiums 85 25 37
Teams' Championships	3 (2017 IMSA SCC, 2018 IMSA SCC, 2021 IMSA SCC) (DPi-V.R)
Constructors' Championships	3 (2017 IMSA SCC, 2018 IMSA SCC, 2021 IMSA SCC) (DPi-V.R)
Drivers' Championships	3 (2017 IMSA SCC, 2018 IMSA SCC, 2021 IMSA SCC) (DPi-V.R)

The Dallara P217 is a sportscar prototype built by Dallara Automobili to the 2017 FIA/ACO regulations for the Le Mans Prototype LMP2 class. The car also meets the regulations for the Le Mans Prototype 2 Class of the IMSA WeatherTech Sportscar Championship. It was active in the FIA World Endurance Championship,^[1] and the European Le Mans Series. The prototype made its debut at the 2017 4 Hours of Silverstone.

Development[]

The car is a result of the bid made by Dallara, for one of the four licenses to build the new for 2017 Le Mans Prototype 2 cars. It is also the first LMP constructed by Dallara since the original Audi R18 TDI.^[2] The car was first spotted testing at the Autodromo Riccardo Paletti in Northern Italy in late early October, by the Italian magazine Autosprint.^[3]

During the 2017 racing season, the car was discovered to have a fundamental issue with a critical element of the sprint kit which was firmly homologated and carried over in the Le Mans low-drag kit. Resulting in major balance issues for the car which first surfaced at Le Mans. With the car being noted for its speed on the long straights, such as the Mulsanne Straight, but also for its lack of pace in the twistier sections of the track.^[4] This element was later revealed to be the splitter. The car was subsequently fitted with an Evo kit for the 2018 racing season to resolve issues with the car. With a new splitter for the Standard High Downforce Aero package and a revised Le Mans Low Drag Kit.^[5] Ahead of the homologation of the Evo Package, the revised car was revealed to have undergone testing at the Algarve International Circuit, in the hands of customer team Cetilar Villorba Corse.^[6] The car has also been known for its relative similarity to the Porsche 919 Hybrid.^[2]

Cadillac DPi-V.R[]

Action Express Racing's Mustang Sampling Racing Cadillac DPi- V.R. at the Petit Le Mans.

A Daytona Prototype International variant of the car, has been developed in partnership with General Motors (under its Cadillac marque), as well as Wayne Taylor Racing. It was unveiled on the 30th of November and is a successor to the successful Corvette Daytona Prototype that was fielded in the Grand-Am Rolex Sports Car Series, as well as the IMSA WeatherTech Sportscar Championship.^[7] It is powered by a LS based GM small-block engine, originally a 6.2L V8 designed, developed, and produced by ECR Engines, mated to a 6 Speed Xtrac transmission, producing 600 hp.^[2][8] In this guise, the car was extremely dominant, with the car winning on its debut at the 2017 Rolex 24 at Daytona, where Wayne Taylor Racing leading a 1-2 with Action Express Racing, while also winning 8 of the 10 races in the calendar. In 2018, the displacement of the LS engine was changed to 5.5L, again built by ECR Engines and producing 580 hp, following a series of BoP adjustments during 2017 to slow down the car the previous season, that had made the car hard to drive, with most notably a tall first and second gear mandated after the low-end torque became an advantage against the turbocharged four and six-cylinder engines.^[9]

Complete IMSA SportsCar Championship results[]

Results in bold indicate pole position. Results in italics indicate fastest lap.

Year	Entrant	Class	Drivers	No.	1	2	3	4	5	6	7	8	9	10	11	Points	Pos
					DAY1	DAY2	SEB	MOH	BEL	WGL1	WGL2	ELK	LGA	LBH	ATL
2021	Cetilar Racing	LMP2	Andrea Belicchi	47	6	6										0	NC
			Antonio Fuoco
			Roberto Lacorte
			Giorgio Senagiotto

Complete FIA World Endurance Championship results[]

Results in bold indicate pole position. Results in italics indicate fastest lap.

Year	Entrant	Class	Drivers	No.	1	2	3	4	5	6	7	8	Points	Pos
					SPA	LMS	SIL	FUJ	SHA	SEB	SPA	LMS
2018 - 2019	Racing Team Nederland	LMP2	Giedo van der Garde	29	8	7	5	7	5	5	6	15	85	6th
			Frits van Eerd		8	7	5	7	5	5	6	15
			Jan Lammers		8	7
			Nyck de Vries				5	7	5	5	6	15
					SIL	FUJ	SHA	BHR	COTA	SPA	LMS	BHR	Points	Pos
2019 - 2020	Cetilar Racing	LMP2	Andrea Belicchi	47	6	7	7	9	8	5	10	6	72	7th
			Roberto Lacorte		6	7	7	9	8	5	10	6
			Giorgio Senagiotto		6	7	7	9	8	5	10	6

Complete European Le Mans Series results[]

Results in bold indicate pole position. Results in italics indicate fastest lap.

Year	Entrant	Class	Drivers	No.	1	2	3	4	5	6	Points	Pos
					SIL	MNZ	RBR	LEC	SPA	POR
2017	SMP Racing	LMP2	Matevos Isaakyan	27			6	1	3	3	63	4th
			Egor Orudzhev
	Racing Team Nederland		Frits van Eerd	29	11	10	7	12	11	8	12.5	11th
			Jan Lammers
	Cetilar Villorba Corse		Andrea Belicchi	47	6	5	NC	10	7	5	35	9th
			Roberto Lacorte
			Giorgio Senagiotto
	High Class Racing		Dennis Andersen	49	3	3	8	9	8	7	46	6th
			Anders Fjordbach
					LEC	MNZ	RBR	SIL	SPA	POR	Points	Pos
2018	AVF by Adrián Vallés	LMP2	Henrique Chaves	30	11	Ret	14	8	9	Ret	6	15th
			Konstantin Tereshchenko
	SMP Racing		Matevos Isaakyan	35	NC	Ret	7	Ret			6	14th
			Egor Orudzhev
			Viktor Shaytar
	Cetilar Villorba Corse		Andrea Belicchi	47	14	9	11	13	10	11	4.5	17th
			Roberto Lacorte
			Giorgio Senagiotto
			Felipe Nasr
	High Class Racing		Dennis Andersen	49	13	14	12	9	Ret	9	5.5	16th
			Anders Fjordbach
					LEC	MNZ	BAR	SIL	SPA	POR	Points	Pos
2019	Thunderhead Carlin Racing	LMP2	Ben Barnicoat	45	11	11	9	Ret		Ret	3	16th
			Jack Manchester
			Olivier Pla
			Harry Tincknell
			Harrison Newey
	Cetilar Villorba Corse		Andrea Belicchi	47		Ret					0	NQ
			Roberto Lacorte
			Giorgio Senagiotto

References[]