Toyota RV8 engine

Last updated

Toyota RV8 engine [1]
Toyota THS-R engine (2012) rear-right 2017 Tokyo Auto Salon.jpg
Overview
Manufacturer TRD
Production1996–2015
Layout
Configuration 90° V8
Displacement 3.4 L (3,396 cc)
3.7 L (3,695 cc)
2.65–3.7  L (162–226  cu in)
Cylinder bore 93  mm (3.66  in)
Piston stroke 62.5  mm (2.46  in)
68 mm (2.68 in)
Cylinder block material Aluminum alloy
Cylinder head material Aluminum alloy
Valvetrain 32-valve (four-valves per cylinder), DOHC
Combustion
Turbocharger Yes
Fuel system Electronic indirect multi-point port fuel injection
Management Pectel MQ12
Fuel type Total/Shell V-Power Gasoline
100% fuel grade Methanol provided by Sunoco (Indy engine)
Oil system Dry sump
Cooling system Single water pump
Output
Power output 512–800  hp (382–597  kW) [2]
Torque output 290–354  lb⋅ft (393–480  N⋅m)
Dimensions
Dry weight 265  lb (120  kg) excluding headers, clutch, ECU, spark box or filters

The Toyota RV8 engine family is a series of race car engines designed, developed and produced by Toyota Racing Development. They come in 2.65-liter, 3.0-liter and 3.4-liter, turbocharged and naturally-aspirated, V8 racing engine versions. They are used in the CART series, IRL IndyCar Series, Formula Nippon, Super GT, and Le Mans Prototype sports car racing, from 1996 to 2015. [3] [4] [5] [6] [7] [8] [9] [10] The naturally-aspirated engine, formerly used in Formula Nippon and Super GT, is itself derived from the Toyota Indy V8 Indy car racing V8 engine. [11]

Contents

TS030 Hybrid engine

The TS030 uses a naturally aspirated gasoline 3.4-litre (210 cu in) V8 power unit, [12] mounted at a 90-degree cylinder bank angle, [13] and produces 530 horsepower (400 kW; 540 PS). [12] Toyota engineers elected to base the engine on their Super GT project instead of constructing a new one. [14] The six-speed sequential gearbox unit was transverse-mounted to the engine and the brakes were constructed from carbon materials. [13]

The TS030 Hybrid featured a Kinetic energy recovery system (KERS) regenerative braking device produced by Toyota Racing Development (the Le Mans organisers, Automobile Club de l'Ouest (ACO), use the alternate name ERS) to charge a super capacitor. [15] The extra power is directed to the rear wheels, giving an automatic horsepower increase of 300 bhp (220 kW; 300 PS). Its motor generator unit acts as a generator under braking; this allows it to harvest direct energy from the drive shaft which slows the car and converts energy into electricity that is stored in the super capacitor, [16] which was supplied by Nisshinbo and mounted in the car's passenger compartment. [13] The result allows for faster lap times when the driver exits track turns and saves fuel by reducing engine usage leaving a corner. [17] Toyota chose Aisin AW to build the front electric motor while Denso were selected to build the rear power unit. [13]

TS040 Hybrid engine

The Toyota TS040 Hybrid 3.7l V8 petrol engine and gearbox assembly on display Toyota TS040 V8 Petrol Engine and Gearbox Assembly.jpg
The Toyota TS040 Hybrid 3.7l V8 petrol engine and gearbox assembly on display

The TS040 Hybrid also uses mid-mounted, naturally-aspirated petrol V8 engine, angled at 90 degrees, [18] [19] was carried over from the TS030 Hybrid. [20] Its displacement, increased from 3.4 L (210 cu in) to 3.7 L (230 cu in) by lengthening the stroke for better efficiency, [20] [21] supplied 513 horsepower (383 kW) to the rear wheels. [22] The engine was developed to run with a fuel flow metre promoting a concept switch to efficiency from power. [21] The bosses-mounted injection system were in the inlet tract and placed over the angled throttle valves relative to the inlet path. They were fitted with eight solenoid injectors which sent power each of the throttle runners and into the inlet portlets. Toyota installed two systems featuring knock control to detect vibration and real-time combustion pressure sensors to tune the spark timing among other engine components during a race for reliability purposes. [23]

Applications

Toyota RV8J engine TOYOTA RV8J.jpg
Toyota RV8J engine

Formula Nippon/Super Formula

LMP1

Super GT (GT300)

CART/IndyCar series

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References

  1. ↑ "Presentation of Toyota V8". 24h-lemans.com. Retrieved 15 November 2021.
  2. ↑ "2014 Toyota TS040 Hybrid Specifications".
  3. ↑ "Toyota Outlines Motorsports Activities for 2007 | Toyota Motor Corporation Official Global Website". Global.toyota. Retrieved 12 November 2021.
  4. ↑ "TOYOTA MOTOR CORPORATION GLOBAL WEBSITE | 75 Years of TOYOTA | Products, Technology | History of Toyota's Motor Sports Activities". Toyota-global.com. Retrieved 12 November 2021.
  5. ↑ "TOYOTA MOTOR SPORTS". Toyota.co.jp. Retrieved 12 November 2021.
  6. ↑ "Toyota's Le Mans engine revealed". Racecar-engineering.com. 27 January 2011. Retrieved 12 November 2021.
  7. ↑ "DOHC, 90 degree, V* racing engines". TrackForum.org. Retrieved 12 November 2021.
  8. ↑ "Mulsanne's Corner: Toyota RV8KLM V8". Mulsannescorner.com. Retrieved 12 November 2021.
  9. ↑ "Toyota RV8KLM (2011) - Racing Cars". Tech-racingcars.wikidot.com. Retrieved 12 November 2021.
  10. ↑ "Swift 017n For Sale (Sold)". Apexspeed.com. Retrieved 12 November 2021.
  11. ↑ "About Formula NIPPON". 2021. Retrieved 13 November 2021.
  12. 1 2 Bowman, Zach (22 February 2013). "Toyota updates Le Mans-ready TS030 hybrid for 2013 season [w/video]". Autoblog. Archived from the original on 7 April 2017. Retrieved 29 January 2017.
  13. 1 2 3 4 Pulman, Ben (25 January 2012). "Toyota TS030 Hybrid (2012) first pics of new Le Mans racer". Car Magazine . Archived from the original on 22 July 2016. Retrieved 29 January 2017.
  14. ↑ Kim, Calvin (19 June 2012). "Insider's Look at the Toyota TS030 Hybrid Le Mans Effort". Road & Track. Archived from the original on 24 April 2015. Retrieved 29 January 2017.
  15. ↑ Dube, Zerin (30 May 2012). "ACO/FIA Announce Hybrid Braking Zones". Speed Sport Life. Archived from the original on 23 June 2012. Retrieved 1 June 2012.
  16. ↑ "Inner workings of the TS030 Hybrid". Toyota. 19 June 2013. Archived from the original on 24 July 2017. Retrieved 28 April 2016.
  17. ↑ Todorova, Lidia (8 June 2012). "Toyota TS030 Hybrid at the Le Mans". Automobiles Review. Archived from the original on 27 August 2014. Retrieved 31 January 2017.
  18. ↑ "Technische Daten des Toyota TS040 Hybrid". motorsport-total.com (in German). 26 March 2015. Archived from the original on 19 March 2018. Retrieved 15 March 2018.
  19. ↑ Meiners, Jens (27 March 2014). "Toyota Debuts 988-hp TS040 Hybrid Le Mans Racer, Takes Aim at Porsche and Audi". Car and Driver . Archived from the original on 20 March 2018. Retrieved 15 March 2018.
  20. 1 2 Watkins, Gary (27 March 2014). "New Toyota LMP1 WEC car close to 1000bhp". Autosport . Archived from the original on 20 March 2018. Retrieved 14 March 2018.
  21. 1 2 Cotton, Andrew (14 June 2019). "The TS dynasty". Racecar Engineering: 10–11. Retrieved 9 June 2021– via Issuu.
  22. ↑ Lavrinc, Damon (28 March 2014). "Toyota's New Hybrid Racer is a 1,000 Horsepower Beast". Wired . Archived from the original on 19 March 2018. Retrieved 14 March 2018.
  23. ↑ Butcher, Lawrence (7 February 2022). "The mindblowing Toyota Le Mans engine that matched F1 – the TS040" . Motor Sport . Retrieved 7 February 2022.
  24. ↑ "Lola B05/50 Formula Nippon". Racecar engineering. 11 December 2007. Retrieved 24 May 2022.
  25. ↑ "Eagle 987 Champ Car". Allamericanracers.com. Retrieved 15 November 2021.
  26. ↑ "2002 Toyota RV8F CART engine". Museumofamericanspeed.com. Retrieved 15 November 2021.
  27. ↑ "Newman/Hass Toyota-Lola Champ Car". Media.toyota.co.uk. 25 June 2004. Retrieved 15 November 2021.
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