- Joined
- Jan 21, 2005
- Messages
- 30,064
- Location
- Mittel England
- Car
- Smart ForFour AMG Black Series Night Edition Premium Plus 125 Powered by Brabus
Where did the Torque figures go? don't you put that into account? Also wheel size can effect the top end speed? etc..
My 2004 320 Cdi has 267bhp and 410ibft and weighs about 1730Kg, Height 1450mm so what's the top speed of that?
The influence of torque is limited only to power being a function of torque. Therefore if the power is known, then the torque is not used in the calculation.
Yes, wheel size can affect top speed. Lots of things can. It can affect both gearing, drag and rolling resistance.
I noticed that the drag coefficient of the skinny tyred E240 was 0.26 whereas other models with wider tyres were 0.27 - see second link below.
Sources:
Mercedes-Benz E W211-E 320 CDI
Mercedes-Benz E-class W211
transmission losses 18%
engine power (at the flywheel) 267 BHP
engine power (at the wheels) 219 BHP
engine power (at the wheels) 163 kW
vehicle track 1.577 m
vehicle height 1.452 m
maximum vehicle cross section 2.06 m*m
vehicle mass (weight) (kg) 1735 kg
air density 1.202 kg/(m*m*m)
drag coefficient 0.27
Theoretical top speed of W211 E320 CDi with modified engine is 164 mph.
With 221 bhp, top speed is 152 mph.
Last edited: