What is the largest horsepower engine?

Answer 1

Swedish supercar manufacturer Koenigsegg specialises in brutally fast exotica - Koenigsegg's CC8S is listed in the Guinness Book of Records as the world's most powerful production car. With the introduction of the CCR at the Geneva Motor Show, they have effectively broken their own record - 806 hp at 6,900 rpm.

The two-door, two-seater CCR's outrageous figures don't stop there. With a dry weight of 1180 kg, it has a power to weight ratio of 1.46 kg per hp, which is another industry best figure. With so much horsepower and so little weight, it's no surprise the CCR runs a standing quarter mile in nine seconds flat, with a terminal speed of 235kmh. The CCR does o to 100 kmh in 3.2 seconds and has a top speed of close to 400 kmh (245mph), thanks to a slippery Cd (drag co-efficient) of just 0.297 and a very low frontal area (1.825 m2).

In order to achieve the extremely low weight, the CCR body is made of preimpregnated carbonfibre/kevlar and has lightweight hard-foam sandwich reinforcements.

The roof is removable, and is stowed under the front boot lid. The record-holding motor is a cast aluminium 4.7 litre V8 with four valves per cylinder, double overhead camshafts, sequential, multipoint fuel injection, a Lysholm twin-screw supercharger with 1.2 bar boost pressure and an intercooler.

The power is fed to the rear wheels via a specially developed 6-speed Cima gearbox.The new CCR assumes top-of-the-range status at Koenigsegg, with all the features of the CC8S model plus refinements to the design of the side air intakes, different headlight arrangement, a revised rear design, larger brakes, a more powerful engine and a number of small performance-enhancing modifications as well as new front splitters for optimised downforce.

The extremely favourable power figures are made possible thanks to use of a specially developed Swedish Lysholm twin-screw compressor and a new exhaust system made of titanium. This takes the engine's power output to the extreme peak value of 806 hp at 6.900 rpm. The torque curve of the motor is strong over a wide rev range with over 550nm at just 2000rpm and over 700 nm all the way to the rev limit, with a peak of 920 Nm (678 ftlb) at 5,700 rpm.

For rocket engines:

The Rocketdyne-developed F-1engine is the most powerful single-nozzle liquid-fueled rocket engine ever flown.

The F-1 burned 3,945 pounds (1,789 kg) of liquid oxygen and 1,738 pounds (788 kg) of RP-1 each second, generating 1,500,000 pounds-force (6.7 MN) of thrust. This equated to a flow rate of 413.5 US gallons (1,565 L) of LOX and 257.9 US gallons (976 L) RP-1 per second. During their two and a half minutes of operation, the five F-1s propelled the Saturn V vehicle to a height of 42 miles (68 km) and a speed of 6,164 mph (9,920 km/h). The combined propellant flow rate of the five F-1s in the Saturn V was 3,357 US gallons (12,710 L) per second. Each F-1 engine had more thrust than three Space Shuttle Main Engines combined.