Roadster, 2 Doors, 2 Seats
11.7 l/100 km 20.1 US mpg
625 Hp @ 7500 rpm.
164.5 Hp/l
329 km/h 204.43 mph
3799 cm3
231.83 cu. in.
8, V-engine
Rear wheel drive,
4509 mm
177.52 in.
1908 mm
75.12 in.
1474 kg
3249.61 lbs.
| Brand | McLaren |
|---|---|
| Model | MP4-12C (Roadster) |
| Version | MP4-12C Spider |
| Engine version | 3.8 V8 (625 Hp) SSG |
| Year production start | 2011 |
| Year production end | 2014 |
| Vehicle type | Roadster |
| Horsepower RPM | 625 Hp @ 7500 rpm. |
| Acceleration 0 - 100 kmh sec | 3.3 sec |
| Curb weight kg -lbs total |
1474 kg3249.61 lbs. |
| Overall length mm - inch |
4509 mm177.52 in. |
| Doors | 2 |
| Top Speed | 329 km/h 204.43 mph |
| Designation model | M838T |
|---|---|
| Cam configuration | DOHC, VVT |
| Engine position and orientation | Middle, Longitudinal |
| Cylinders | 8 |
| Position of cylinders | V-engine |
| Displacement (liters) |
3799 cm3231.83 cu. in. |
| Eng. horsepower RPM | 625 Hp @ 7500 rpm. |
| Horsepower per litre | 164.5 Hp/l |
| Weight / horsepower kg/hp - hp/tons |
2.4 kg/Hp424 Hp/tonne |
| Weight / torque kg/Nm - Nm/tons | 2.5 kg/Nm, 407.1 Nm/tonne
2.5 kg/Nm407.1 Nm/tonne |
| Torque Nm RPM lb-ft RPM |
600 Nm @ 3000-7000 rpm.442.54 lb.-ft. @ 3000-7000 rpm. |
| Bore (mm in) |
93 mm3.66 in. |
| Stroke (mm in) |
69.9 mm2.75 in. |
| Compression ratio | 8.7 |
| Fuel delivery system | Direct injection |
| Fuel type | Petrol (Gasoline) |
| Valvetrain | 4 |
| Engine aspiration | Twin-Turbo, Intercooler |
| Engine oil liters | quarts |
8.0 l8.45 US qt | 7.04 UK qt |
| Powertrain architecture | Internal Combustion engine |
| Engine location | Middle, Longitudinal |
| Drive configuration | Rear wheel drive |
|---|
| Front brakes | Ventilated discs |
|---|---|
| Rear brakes | Ventilated discs |
| Anti-lock brake system | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
|---|---|
| Turning diameter m - ft |
12.3 m40.35 ft. |
| Front suspension | Double wishbone |
|---|---|
| Rear suspension | Double wishbone |
| Wheels size | 235/35 R19; 305/30 R20 |
|---|---|
| Wheels rims | 8.5J x 19; 11J x 20 |
| Passengers seats | 2 |
|---|
| Overall length mm - inch |
4509 mm177.52 in. |
|---|---|
| Overall width mm -inch |
1908 mm75.12 in. |
| Overall height mm -inch |
1203 mm47.36 in. |
| Wheelbase mm - inch |
2670 mm105.12 in. |
| Track width front mm - inch |
1656 mm65.2 in. |
| Track width rear mm - inch |
1583 mm62.32 in. |
| Curb weight kg -lbs total |
1474 kg3249.61 lbs. |
|---|---|
| Fuel tank liters | gallons |
72 l19.02 US gal | 15.84 UK gal |
| Combined l/100 km - Mpg |
11.7 l/100 km20.1 US mpg |
|---|---|
| Autonomy km (combined use) | 655 |
8 CYLINDER V-Engine
It's an engine with eight cylinder piston where the cylinders share a common crankshaft and are arranged in a V configuration.
What is the 8 cylinder V-engine displacement: it is in a range between 2926 cc and 8135 cc in recent model line up powertrain.
How much is the power of the 8 cylinder V-engine: the power of the 8 cylinder V-engine is in a range from 125 bhp to 1160 bhp.
Which cars use 8 cylinder V-engine: in recent years several manufactures have been used the V8 engine for 3 main applications: premium, sport cars and lightweight trucks. 8 V engine is the American preferred engine for iconic giant pick-up.
What is the eight cylinder V angle: the majority of V8 engines use a V-angle of 90 degrees. This angle results in good engine balance and low vibrations. The downside is a larger powertrain body that makes the use of this configuration suitable only for longitudinal position and rear drive wheels traction.
V8 engines with a 60 degree V-angle were used in the 1996-1999 by Ford and in 2005-2011 by Volvo. The Ford engine used a 60 degree V-angle because it was based on a V6 engine with a 60 degree V-angle. Both the Ford and Volvo engines were used in transverse engine chassis, which were designed for a front-wheel-drive layout. To reduce the vibrations caused by the unbalanced 60 degree V-angle, Volvo's used a balance shaft and offset split crankpins.
The Rolls-Royce Meteorite tank engine also used a 60 degree V-angle, since it was derived from the 60 degree V12 Rolls-Royce Meteor which in turn was based on the famous Rolls-Royce Merlin V12 engine.
Most V8 engines fitted to road cars use a cross-plane crankshaft, since this configuration produces less vibration due to the perfect primary balance and secondary balance.
The rumbling exhaust sound produced by a typical cross-plane V8 engine is partly due to the uneven firing order within each of the two banks of four cylinders and with separate exhaust systems for each bank of cylinders, this uneven pulsing creates the legendary rumbling sound that is typically of V8 engines.
edited by arrabbiata