Cosworth TJ / CA engine explained

Cosworth TJ / CA
Manufacturer:	Cosworth
Production:	2005–2013
Configuration:	90° V10 and V8
Displacement:	2998.3cc 2398.7cc
Bore:	95mm 98mm
Stroke:	42.3mm 39.75mm
Block:	Aluminum alloy
Head:	Aluminum alloy
Pistons:	Aluminum alloy
Crankshaft:	Aluminum alloy
Valvetrain:	32-valve to 40-valve, DOHC, four-valves per cylinder
Turbocharger:	No
Power:	NaNhp^[1]
Torque:	NaNlb.ft
Lubrication:	Dry sump
Weight:	NaNkg (-2,147,483,648lb)
Fuelsystem:	Multi-point electronic fuel injection
Management:	Cosworth ECU (2005-2006) later McLaren ECU (2010-2013)
Oilsystem:	Dry sump
Predecessor:	Cosworth CR

The TJ and CA series are a family of naturally-aspirated V10 and V8 Formula One racing engines, in both 2.4-litre and 3-litre engine configurations, designed and developed by Cosworth; and produced between and .^[2] The customer engines were used by Minardi, Red Bull, Toro Rosso, Williams, Lotus, HRT, Virgin, and Marussia.

Background

Jaguar pulled out of F1 at the end of 2004, but the team (renamed Red Bull Racing) continued to use Cosworth V10 engines until switching to a Ferrari V8 for 2006. Minardi also used re-badged Cosworth engines until 2005.

Williams began testing the new CA2006 2.4-litre V8 in November 2005, which produced about 755 bhp @ 19,250 rpm (315 hp/L),^{[3] [4]} and began using Cosworth V8 engines for the 2006 season. In the same year, Scuderia Toro Rosso used detuned V10 engines based on the 2005 units.

For 2006, engines had to be a 90° V8 configuration of 2.4 litres maximum capacity with a circular bore of 98mm maximum, which implies a 39.8mm stroke at maximum bore. The engines must have two inlet and two exhaust valves per cylinder, be naturally aspirated and have a 950NaN0 minimum weight. The previous year's engines with a rev-limiter were permitted for 2006 and 2007 for teams who were unable to acquire a V8 engine, with Scuderia Toro Rosso using a rev-limited and air-restricted version of the Cosworth TJ2005 V10; after Red Bull's takeover of the former Minardi team did not include the new engines.^[5] The 2006 season saw the highest rev limits in the history of Formula One, at well over 20,000 rpm; before a 19,000 rpm mandatory rev limiter was implemented for all competitors in 2007. Cosworth was able to achieve just over 20,000 rpm with their V8.^[6]

In 2007, however, the company was left without a partner when Williams chose to switch to Toyota power, and Scuderia Toro Rosso made the switch to Ferrari engines (as used in 2006 by their mother team Red Bull Racing).

In Max Mosley's letter following the withdrawal of Honda from Formula One in December 2008, it was announced that Cosworth had won the tender to provide a standard engine to any interested participants. The new engine would become the standard design and manufacturers could opt to use whole units, construct their own from designs provided by Cosworth, or produce their own engine with the caveat that it be limited to the same power as the new "standard" engine.

In 2010 Cosworth returned as the engine supplier for Williams and three new teams; Hispania Racing, Lotus Racing and Virgin Racing. The CA2010 is the same 2.4-litre V8 base of the CA2006 used by Williams, but has been re-tuned for the then-mandated 18,000 rpm limit required on all engines, down from its original 20,000 rpm implementation.^[7] First units were ready and shipped to teams in mid-January for fitting 2 weeks prior to first track testing for the year.^[8]

Complete Formula One results

(key)

Year	Entrant	Chassis	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	Points	WCC
	Red Bull Racing	Red Bull RB1^[9]	Cosworth TJ2005 3.0 V10			AUS	MAL	BHR	SMR	ESP	MON	EUR	CAN	USA	FRA	GBR	GER	HUN	TUR	ITA	BEL	BRA	JPN	CHN		34	7th
					David Coulthard	4	6	8	11	8	Ret	4	7	DNS	10	13	7	Ret	7	15	Ret	Ret	6	9
					Christian Klien	7	8	DNS					8	DNS	Ret	15	9	Ret	8	13	9	9	9	5
					Vitantonio Liuzzi				8	Ret	Ret	9
	Minardi F1 Team	Minardi PS05							Ret	Ret	Ret	18	Ret	6	Ret	19										7	10th
					Robert Doornbos												18	Ret	13	18	13	Ret	14	14^†
					Christijan Albers				Ret	Ret	14	17	11	5	Ret	18	13	NC	Ret	19	12	14	16	16^†
	Williams F1 Team	Williams FW28	Cosworth CA2006 2.4 V8			BHR	MAL	AUS	SMR	EUR	ESP	MON	GBR	CAN	USA	FRA	GER	HUN	TUR	ITA	CHN	JPN	BRA			11	8th
					Mark Webber	6	Ret	Ret	6	Ret	9	Ret	Ret	12	Ret	Ret	Ret	Ret	10	10	8	Ret	Ret
					Nico Rosberg		Ret	Ret	11	7	11	Ret	9	Ret	9	14	Ret	Ret	Ret	Ret	11	10	Ret
	Scuderia Toro Rosso	Toro Rosso STR1	Cosworth TJ2005 3.0 V10		Vitantonio Liuzzi	11	11	Ret	14	Ret	15^†	10	13	13	8	13	10	Ret	Ret	14	10	14	13			1	9th
					Scott Speed	13	Ret	9	15	11	Ret	13	Ret	10	Ret	10	12	11	13	13	14	18^†	11
–: Cosworth did not supply any engines in Formula One.
	AT&T Williams	Williams FW32	Cosworth CA2010 2.4 V8			BHR	AUS	MAL	CHN	ESP	MON	TUR	CAN	EUR	GBR	GER	HUN	BEL	ITA	SIN	JPN	KOR	BRA	ABU		69	6th
						10	8	12	12	9	Ret	14	14	4	5	12	10	Ret	10	6	9	7	14	12
					Nico Hülkenberg	14	Ret	10	15	16	Ret	17	13	Ret	10	13	6	14	7	10	Ret	10		16
	Lotus Racing	Lotus T127			Jarno Trulli	17	DNS	17	Ret	17	15	Ret	Ret	21	16	Ret	15	19	Ret	Ret	13	Ret	19	21		0	10th
						15	13	NC	14	DNS	Ret	Ret	16	Ret	17	Ret	14	16	18	16	12	13	18	17
	Hispania Racing F1 Team	Hispania F110			Karun Chandhok	Ret	14	15	17	Ret	14	20	18	18	19											0	11th
					Bruno Senna	Ret	Ret	16	16	Ret	Ret	Ret	Ret	20		19	17	Ret	Ret	Ret	15	14	21	19
															20	Ret	19	20	19		16	15
					Christian Klien															Ret			22	20
	Virgin Racing	Virgin VR-01			Timo Glock	Ret	Ret	Ret	DNS	18	Ret	18	Ret	19	18	18	16	18	17	Ret	14	Ret	20	Ret		0	12th
					Lucas di Grassi	Ret	Ret	14	Ret	19	Ret	19	19	17	Ret	Ret	18	17	20	15	DNS	Ret	NC	18
	AT&T Williams	Williams FW33	Cosworth CA2011 2.4 V8			AUS	MAL	CHN	TUR	ESP	MON	CAN	EUR	GBR	GER	HUN	BEL	ITA	SIN	JPN	KOR	IND	ABU	BRA		5	9th
					Rubens Barrichello	Ret	Ret	13	15	17	9	9	12	13	Ret	13	16	12	13	17	12	15	12	14
					Pastor Maldonado	Ret	Ret	18	17	15	18^†	Ret	18	14	14	16	10	11	11	14	Ret	Ret	14	Ret
	Hispania Racing F1 Team	Hispania F111			Narain Karthikeyan	DNQ	Ret	23	21	21	17	17	24									17				0	11th
					Daniel Ricciardo									19	19	18	Ret	NC	19	22	19	18	Ret	20
					Vitantonio Liuzzi	DNQ	Ret	22	22	Ret	16	13	23	18	Ret	20	19	Ret	20	23	21		20	Ret
	Marussia Virgin Racing	Virgin MVR-02			Timo Glock	NC	16	21	DNS	19	Ret	15	21	16	17	17	18	15	Ret	20	18	Ret	19	Ret		0	12th
						14	Ret	20	20	20	15	14	22	17	18	19	17	Ret	18	21	20	16	Ret	19
	Marussia F1 Team	Marussia MR01	Cosworth CA2012 2.4 V8			AUS	MAL	CHN	BHR	ESP	MON	CAN	EUR	GBR	GER	HUN	BEL	ITA	SIN	JPN	KOR	IND	ABU	USA	BRA	0	11th
					Timo Glock	14	17	19	19	18	14	Ret	DNS	18	22	21	15	17	12	16	18	20	14	19	16
					Charles Pic	15^†	20	20	Ret	Ret	Ret	20	15	19	20	20	16	16	16	Ret	19	19	Ret	20	12
	HRT Formula 1 Team	HRT F112			Pedro de la Rosa	DNQ	21	21	20	19	Ret	Ret	17	20	21	22	18	18	17	18	Ret	Ret	17	21	17	0	12th
						DNQ	22	22	21	Ret	15	Ret	18	21	23	Ret	Ret	19	Ret	Ret	20	21	Ret	22	18
	Marussia F1 Team	Marussia MR02	Cosworth CA2013 2.4 V8			AUS	MAL	CHN	BHR	ESP	MON	CAN	GBR	GER	HUN	BEL	ITA	SIN	KOR	JPN	IND	ABU	USA	BRA		0	10th
					Jules Bianchi	15	13	15	19	18	Ret	17	16	Ret	16	18	19	18	16	Ret	18	20	18	17
					Max Chilton	17	16	17	20	19	14	19	17	19	17	19	20	17	17	19	17	21	21	19

See also

• Mercedes-Benz FO engine
• BMW E41 / P80 engine
• Ferrari V10 engine
• Honda V10 engine
• Toyota RVX engine
• Peugeot V10

Notes and References

1. Book: COSWORTH - THE SEARCH FOR POWER. 9781845848958. Robson. Graham. 17 April 2017. 6th.
2. Web site: Engine Cosworth • STATS F1. 2021-10-09. www.statsf1.com.
3. Web site: Grand Prix Engine Development 1906-2000: Cosworth 2006 Type CA Series 6 Eg SO25 . Derek . Taulbut . 18 January 2021.
4. Web site: Two F1 Engines Built Nearly 50 Years Apart Show How Far Racing Technology Has Come . 29 December 2020 .
5. Book: Henry. Alan. Alan Henry. AUTOCOURSE 2006–2007. Crash Media Group. 2006. 82–83. 1-905334-15-X.
6. Web site: King of Speed: Cosworth's CA 2.4l V8. 2021-10-09. www.f1technical.net. en-gb.
7. Web site: Cosworth expects engines to be strong – F1 | ITV Sport . Itv-f1.com . 20 July 2009 . 12 July 2010 . dead . https://web.archive.org/web/20100607144147/http://www.itv-f1.com/News_Article.aspx?id=46413&PO=46413 . 7 June 2010 . dmy-all .
8. News: autosport.com . autosport.com . 12 January 2010. 12 July 2010.
9. Web site: The Cars .