Toyota TF107

Aerodynamics

Kamui Kobayashi driving a TF107 at Goodwood in 2008

The main changes in comparison to its predecessor, the TF106B were aerodynamic.^[1] The position of the engine was moved forward by 100 mm, meaning that the chassis tub was shorter. This was achieved by reshaping the monocoque, and did not incur a reduction in size of the fuel tank.^[2]

The area below the nose of the car was clear of intrusion from suspension components due to the "zero keel" design. In fact at the front of the car, the monocoque was 30mm higher than on the TF106B, which resulted in dramatically sloped suspension wishbones. Although this approach compromised the front suspension geometry possibilities, the Toyota engineers came to the conclusion that this was not a problem.^[1]

Engine and gearbox

Jarno Trulli driving the TF107 at the 2007 Bahrain Grand Prix.

Ralf Schumacher at the 2007 British GP.

Owing to the new homologation rules on engines imposed by the FIA, the engine (called the RVX-07) was based on that used by Jarno Trulli in the 2006 Japanese and Brazilian Grands Prix. Only limited changes from this design were allowed, in order to optimise performance for the 19000 rpm rev limit which was enforced in 2007. Several changes were made to the pistons and valves and other components, although the engine block could not be changed.^[1]

In 2007, the WilliamsF1 team used Toyota engines as a customer team. As part of this partnership, Toyota used a new gearbox developed in collaboration with Williams, which used seamless shift technology. Only the gearbox internals were shared with the Williams' 2007 car, the FW29, the TF107's gearbox casing being made by Toyota.^[1]

Performance

The car was less successful than the previous year's TF106, which managed 35 points in the season. The TF107's 13 points were amassed with seven points scoring finishes, including two 6th places, one for Jarno Trulli at the 2007 United States Grand Prix and one for Ralf Schumacher in Hungary. Trulli scored points on three other occasions, with Schumacher finishing in the points in two other races. By the end of the season, the team embarrassingly scored less points than WilliamsF1 who have the same engine as them in the Constructors Championship. Ralf Schumacher chose to retire from F1 in favour of DTM with Mercedes. He was replaced by fellow German driver Timo Glock for the 2008 season.

The car's best qualifying position was in the hands of Ralf Schumacher, who took 5th place in Hungary. It made the top ten 20 times out of a possible 34.

Complete Formula One results

(key) (results in bold indicate pole position)

Year	Team	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	Points	WCC
2007	Toyota	Toyota V8	B		AUS	MAL	BHR	ESP	MON	CAN	USA	FRA	GBR	EUR	HUN	TUR	ITA	BEL	JPN	CHN	BRA	13	6th
				Ralf Schumacher	8	15	12	Ret	16	8	Ret	10	Ret	Ret	6	12	15	10	Ret	Ret	11
				Jarno Trulli	9	7	7	Ret	15	Ret	6	Ret	Ret	13	10	16	11	11	13	13	8

References

1 2 3 4 "Winning Is Everything", Toyota TF107 launch article, Autosport magazine, 18 January 2007
↑ f1technical.net Article on TF107 article

External links

Technical Specification and Detail of TF107

Cars that competed in the 2007 Formula One season

McLaren MP4-22 Renault R27 Ferrari F2007 Honda RA107 BMW Sauber F1.07 Toyota TF107 Red Bull RB3 Williams FW29 Toro Rosso STR2 Spyker F8-VII Spyker F8-VIIB Super Aguri SA07

Panasonic Toyota Racing

Personnel Tadashi Yamashina John Howett Pascal Vasselon Ove Andersson Tsutomu Tomita Noted drivers Timo Glock Kamui Kobayashi Cristiano da Matta Allan McNish Olivier Panis Mika Salo Ralf Schumacher Jarno Trulli Ricardo Zonta Formula One cars TF101 TF102 TF103 TF104 TF104B TF105 TF105B TF106 TF106B TF107 TF108 TF109 TF110

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