The GPV8 is a 3.5-litre and 3.8-litre, naturally-aspirated V8 engine, originally designed, developed and produced by Cosworth, for the Lotus T125 open-wheel sports car. The initial 3.5-litre V8 produced 640 hp (477 kW; 649 PS) at 9800 rpm, and 332 lb⋅ft (450 N⋅m) at 7600 rpm. The rev limit of the engine is 10,300 rpm; and can be temporarily raised to 10,800 rpm with a push-to-pass button feature.[5][6] The enlarged 3.8-litre V8 is more powerful, producing 675 hp (503 kW; 684 PS) at 9600 rpm, and 361 lb⋅ft (489 N⋅m) at 7600 rpm, with a redline of 10,000 rpm.[7][8][9] The engine's power density is between 136.3 kW (185.3 PS; 182.8 hp) and 132.4 kW (180.0 PS; 177.6 hp) per litre.

Cosworth GPV8[1]
Overview
ManufacturerUnited Kingdom Cosworth
Production2010–present
Layout
ConfigurationV8, naturally-aspirated, 90° cylinder angle
Displacement3.5–3.8 L (214–232 cu in)
Cylinder boreUndisclosed
Cylinder block materialAluminum alloy
Cylinder head materialAluminum alloy
Valvetrain32-valve, DOHC, four-valves per cylinder
Combustion
TurbochargerNo
Fuel systemDirect fuel injection
ManagementPectel SQ6 ECU[2][3][4]
Fuel type98-octane unleaded Gasoline
Oil systemDry sump
Output
Power output640–675 hp (477–503 kW)
Torque output332–361 lb⋅ft (450–489 N⋅m)
Dimensions
Dry weight297 lb (135 kg)

Unlike formula cars, the engine has been manufactured for durability, longevity, and reliability, with the engine able to withstand more than 5,000 km (3,107 mi) on premium 98-octane pump gas.[8]

Applications

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References

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  1. ^ "Formula 1 & Indy Car Conversions". Indy Competition Services.
  2. ^ "Pectel SQ6 ECU" (PDF). Cosworth.com. Retrieved 10 November 2021.
  3. ^ "Cosworth Pectel SQ6 ECU | Dynamic Racing Solutions, LLC by Pectel". Drspower.com. Archived from the original on 2021-10-07. Retrieved 2021-10-07.
  4. ^ "Pectel SQ6 ECU". Kmsracingengines.com.
  5. ^ Holmes, Jake (August 10, 2010). "Lotus Unveils F1-Inspired T125 Track Car". Car and Driver.
  6. ^ "The Lotus Type 125 is Not Your Typical Sports-Racer". MotorTrend. May 27, 2015.
  7. ^ McDonald, Alison (29 October 2019). "Rodin Cars Reveals FZED Single-Seater". Theshopmag.com.
  8. ^ a b "FZED". rodin-cars.com.
  9. ^ "The Lotus T125 track car has returned as the Rodin FZED". Top Gear. August 2, 2019.
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