Honda V12 engine

Honda V12 engine
Overview
ManufacturerJapan Honda
DesignerYoshio Nakamura (1964-1968)
Osamu Goto (1991-1992)
Production1964–1968, 1991–1992
Layout
Configuration60°-75° V12
Displacement
  • 1.5 L (1,495 cc)
  • 3.0 L (2,993 cc)
  • 3.5 L (3,497 cc)
  • 3.5 L (3,496 cc)
Cylinder bore
  • 58.1 mm (2.3 in)
  • 78.0 mm (3.1 in)
  • 86.5 mm (3.4 in)
  • 88.0 mm (3.5 in)
Piston stroke
  • 47.0 mm (1.9 in)
  • 52.2 mm (2.1 in)
  • 49.6 mm (2.0 in)
  • 47.9 mm (1.9 in)
Valvetrain48-valve, DOHC, four-valves per cylinder[1][2][3]
Compression ratio12.0:1-12.9:1[4]
Combustion
Fuel systemCarburetor
Electronic fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output210–800 PS (154–588 kW; 207–789 hp)[5][6]
Torque output150–500 N⋅m (111–369 lb⋅ft)[7][8]
Dimensions
Dry weight120–160 kg (264.6–352.7 lb)[9]
Chronology
PredecessorHonda RA16 engine
SuccessorHonda V10 engine
Preview warning: Page using Template:Infobox engine with unknown parameter "aspiration"

Honda has made a number of naturally-aspirated V12 engines designed for Formula One motor racing; starting with the 1.5-litre RA271E engine in 1964,[10][11] and ending with the 3.0-litre RA273E in 1968.[5][12] This would be followed by a 21-year hiatus, until Honda reintroduced the new 3.5-litre RA121E in 1991.[13] The RA121E would go down as the last V12 engine to win a Formula One World Championship.[14] Honda's last-ever V12 engine, the RA122E/B, raced in 1992.[15]

  1. ^ "F1: Honda's first Formula 1 engine, almost 50 years ago (+video) | Car News | Auto123". auto123.com.
  2. ^ "1965 Honda RA272". conceptcarz.com.
  3. ^ "Honda RA271/272 1.5 Litre V12 1964/5 GP Cars…". December 12, 2014.
  4. ^ "Specifications of 50 famous racing engines up to 1994 - Page 17 - F1technical.net". www.f1technical.net.
  5. ^ a b "Engine Honda". Statsf1.com.
  6. ^ "Honda Global | Formula One Entry: The Initial Phase / 1964". global.honda.
  7. ^ "1990's F1 Engine Torque graphs - F1technical.net". www.f1technical.net.
  8. ^ "Spicer Horsepower and Torque Calculator". spicerparts.com.
  9. ^ "Summary of Honda Formula One Engine in Third-Era Activities" (PDF). F1-forecast.com. Retrieved 10 November 2021.
  10. ^ "When Honda Brought a 1.5-Liter V-12 to Formula 1". Roadandtrack.com. 2 October 2020.
  11. ^ "F1: Honda's first Formula 1 engine, almost 50 years ago (+video) | Car News". Auto123.com.
  12. ^ "1967 Honda RA300 F1 Car - 3.0L V12 Engine Sound!". YouTube. Retrieved 10 November 2021.
  13. ^ "1991 McLaren MP4/6 F1 Sound - Honda 3.5 V12 Engine Screams at Goodwood". YouTube. Retrieved 10 November 2021.
  14. ^ "1991 McLaren MP4/6 Honda - Images, Specifications and Information". Ultimatecarpage.com. Retrieved 10 December 2019.
  15. ^ Engineering, Racecar (June 25, 2020). "Natural Aspirations".