Isuzu V12 F1 engine

Last updated
Isuzu P799WE
Isuzu P799WE engine rear.jpg
Overview
Manufacturer Isuzu
Production1989–1991
Layout
Configuration 75° V12
Displacement 3.5  L (214  cu in)
Cylinder bore 85  mm (3  in)
Piston stroke 51.3  mm (2  in)
Valvetrain 48-valve, DOHC, four-valves per cylinder
Compression ratio 13.0:1
Combustion
Fuel system Port fuel injection
Fuel type Gasoline
Oil system Dry sump
Output
Power output 640–765  hp (477–570  kW)
Torque output 296–308  lb⋅ft (401–418  N⋅m)
Dimensions
Length690  mm (27.2  in)
Width580  mm (22.8  in)
Height495  mm (19.5  in)
Dry weight 158  kg (348  lb)

Isuzu made an experimental 75-degree, four-stroke, naturally-aspirated, V-12 racing engine, dubbed the P799WE, designed for Formula One racing; between 1989 and 1991. The experimental unit was used in the Lotus 102B and Lotus 102C. [1] [2] [3] [4]

Contents

Background

The 102B enabled the team to equal their 1990 points total of three points. With increased sponsorship and the delay of the 107 it was to continue racing for the first four races of the 1992 season in D specification. The C specification incorporated an Isuzu P799WE (Japanese edition) V12 engine that had been developed throughout the season but never raced. The new engine produced impressive power, with rumours of around 750bhp reported. In the engine's one and only track test, the car was six seconds off the pace however. [5] Ultimately, Peter Collins, team principal of Team Lotus, decided against a deal to use the unproven engine and Isuzu decided against entering Formula One anyway. [6]

Specifications

Applications

References

  1. "That Time Isuzu Made A Formula One Engine And Put It In A Pickup". carthrottle.com. Retrieved 17 November 2021.
  2. "Isuzu's Secret History: F1 Engines, Supercar Concepts, and More". motortrend.com. 7 May 2020. Retrieved 17 November 2021.
  3. "Sidelined Samurai - 1991 Lotus 102C Isuzu". drivetribe.com. Archived from the original on 17 November 2021. Retrieved 17 November 2021.
  4. "Isuzu's V12 monster". drivetribe.com. Archived from the original on 17 November 2021. Retrieved 17 November 2021.
  5. 幻のF1エンジンISUZU P799WE - Autosports Web(2014年12月24日公開/2017年8月12閲覧)
  6. "Sidelined Samurai - 1991 Lotus 102C Isuzu". Carmrades. Archived from the original on 14 December 2019. Retrieved 14 December 2019.