Roadster, 2 Doors, 2 Seats
15.4 l/100 km 15.27 US mpg
9.9 l/100 km 23.76 US mpg
204 Hp @ 5200 rpm.
48.6 Hp/l
205 km/h 127.38 mph
4196 cm3
256.06 cu. in.
8, V-engine
Rear wheel drive,
4390 mm
172.83 in.
1790 mm
70.47 in.
1600 kg
3527.4 lbs.
| Brand | Mercedes-Benz |
|---|---|
| Model | SL (Roadster) |
| Version | SL (R107, facelift 1985) |
| Engine version | 420 SL CAT V8 (204 Hp) Automatic |
| Year production start | 1985 |
| Year production end | 1989 |
| Vehicle type | Roadster |
| Horsepower RPM | 204 Hp @ 5200 rpm. |
| Acceleration 0 - 100 kmh sec | 9 sec |
| Curb weight kg -lbs total |
1600 kg3527.4 lbs. |
| Overall length mm - inch |
4390 mm172.83 in. |
| Doors | 2 |
| Top Speed | 205 km/h 127.38 mph |
| Designation model | M 116 E 42 / 116.964 |
|---|---|
| Cam configuration | SOHC |
| Engine position and orientation | Front, Longitudinal |
| Cylinders | 8 |
| Position of cylinders | V-engine |
| Displacement (liters) |
4196 cm3256.06 cu. in. |
| Eng. horsepower RPM | 204 Hp @ 5200 rpm. |
| Horsepower per litre | 48.6 Hp/l |
| Weight / horsepower kg/hp - hp/tons |
7.8 kg/Hp127.5 Hp/tonne |
| Weight / torque kg/Nm - Nm/tons | 5.3 kg/Nm, 190 Nm/tonne
5.3 kg/Nm190 Nm/tonne |
| Torque Nm RPM lb-ft RPM |
304 Nm @ 3600 rpm.224.22 lb.-ft. @ 3600 rpm. |
| Bore (mm in) |
92 mm3.62 in. |
| Stroke (mm in) |
78.9 mm3.11 in. |
| Compression ratio | 9 |
| Fuel delivery system | Multi-point indirect injection |
| Fuel type | Petrol (Gasoline) |
| Valvetrain | 2 |
| Engine aspiration | Naturally aspirated engine |
| Engine oil liters | quarts |
8 l8.45 US qt | 7.04 UK qt |
| Engine coolant |
12.5 l13.21 US qt | 11 UK qt |
| Powertrain architecture | Internal Combustion engine |
| Engine location | Front, Longitudinal |
| Drive configuration | Rear wheel drive |
|---|
| Front brakes | Ventilated discs |
|---|---|
| Rear brakes | Disc |
| Anti-lock brake system | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
|---|
| Front suspension | Double wishbone |
|---|---|
| Rear suspension | Threaded twist beam |
| Wheels size | Front wheel tires: 205/65 R15 |
|---|---|
| Wheels rims | Front wheel rims: 7J x 15 |
| Passengers seats | 2 |
|---|
| Overall length mm - inch |
4390 mm172.83 in. |
|---|---|
| Overall width mm -inch |
1790 mm70.47 in. |
| Overall height mm -inch |
1307 mm51.46 in. |
| Wheelbase mm - inch |
2455 mm96.65 in. |
| Track width front mm - inch |
1465 mm57.68 in. |
| Track width rear mm - inch |
1466 mm57.72 in. |
| Curb weight kg -lbs total |
1600 kg3527.4 lbs. |
|---|---|
| Gross weight kg -lbs total |
2020 kg4453.34 lbs. |
| Capacities kg - lbs |
420 kg925.94 lbs. |
| Fuel tank liters | gallons |
85 l22.45 US gal | 18.7 UK gal |
| City l/100km - mpg |
15.4 l/100 km15.27 US mpg |
|---|---|
| Highway l/100 km - mpg |
9.9 l/100 km23.76 US mpg |
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