McLaren P1
The new car boasts 903 horsepower, can hit 62 mph in less than three seconds, can hit 186 mph in less than 17 seconds, and runs into an electronic wall at 217 mph. The F1 had 618 horsepower, achieved 60 mph in 3.2 seconds, and hit 180 in 20.3 seconds. Top speed was 221 mph, however, proof that not everything improves with time. The engine and electric motor must work in tandem to deliver the full 903 horsepower and 664 lb-ft of torque. The 3.8-liter eight-cylinder produces 727 hp and 531 lb-ft on its own, and has been revised to team harmoniously with the electric portion of the drivetrain. This includes a new block casting that’s stiffer and allows for affixing the electric motor to its left side. New turbos and plumbing have been fitted to deal with the P1’s higher operating requirements and the attendant temperatures; maximum blow measures 34.8 psi. The dual-clutch gearbox features additional cooling beyond that of the unit found in the 12C, and it can be operated manually via paddles.
The 57-pound electric motor can declutch from the driveline, and produces 177 horses and effective torque of 192 lb-ft. In addition to its normal propulsion duties, it helps, McLaren says, “fill in” torque gaps after shifts while the turbos spool up and also aids faster upshifts by providing driveline drag to drop engine speed more quickly. The car can move on electric power alone for up to 6.2 miles, and the liquid-cooled, 324-cell battery can be charged either by the electric motor on deceleration or via a wall plug stored in the luggage compartment. (Regenerative braking wasn’t employed to avoid degradation of brake feel.) A special recharging function has been dubbed “pit-lane charging” and juices the battery in 10 minutes using a dashboard “Charge” button that forces the V-8 engine into generator mode. McLaren suggests you’d use this to extend electric-only range—although you’re burning gas while doing so—or, more exciting, to ensure maximum power to lay down a blistering hot lap. Battery-pack capacity and makeup wasn’t supplied, but McLaren says it offers greater continuous power density than any other automotive battery pack and that it was designed to prioritize rapid power delivery over electron storage.
That quick delivery of electricity is key to the P1’s IPAS (Instant Power Assist System) function, which allows the driver, via a steering-wheel-mounted button, to unleash all available electrical power when the accelerator pedal is near or on the floor. Another button on the steering wheel activates an F1-style drag-reduction system (DRS) that keeps the auto-deploying, active rear wing in its place to minimize speed-sapping drag. Maximum available downforce is a claimed 1323 pounds, achieved at 160 mph, and is said to exceed that of any other production road car in history.
Work Cited: https://en.wikipedia.org/wiki/McLaren_P1
The 57-pound electric motor can declutch from the driveline, and produces 177 horses and effective torque of 192 lb-ft. In addition to its normal propulsion duties, it helps, McLaren says, “fill in” torque gaps after shifts while the turbos spool up and also aids faster upshifts by providing driveline drag to drop engine speed more quickly. The car can move on electric power alone for up to 6.2 miles, and the liquid-cooled, 324-cell battery can be charged either by the electric motor on deceleration or via a wall plug stored in the luggage compartment. (Regenerative braking wasn’t employed to avoid degradation of brake feel.) A special recharging function has been dubbed “pit-lane charging” and juices the battery in 10 minutes using a dashboard “Charge” button that forces the V-8 engine into generator mode. McLaren suggests you’d use this to extend electric-only range—although you’re burning gas while doing so—or, more exciting, to ensure maximum power to lay down a blistering hot lap. Battery-pack capacity and makeup wasn’t supplied, but McLaren says it offers greater continuous power density than any other automotive battery pack and that it was designed to prioritize rapid power delivery over electron storage.
That quick delivery of electricity is key to the P1’s IPAS (Instant Power Assist System) function, which allows the driver, via a steering-wheel-mounted button, to unleash all available electrical power when the accelerator pedal is near or on the floor. Another button on the steering wheel activates an F1-style drag-reduction system (DRS) that keeps the auto-deploying, active rear wing in its place to minimize speed-sapping drag. Maximum available downforce is a claimed 1323 pounds, achieved at 160 mph, and is said to exceed that of any other production road car in history.
Work Cited: https://en.wikipedia.org/wiki/McLaren_P1