Quote:
Originally Posted by m-ch
It is a matter of fact that a 700 hp Car Must be mutch faster than the 500 hp turbo
Weight doesnt matters after 150 km/h or more for highspeed runs, we have the drag and the gearing witch can have an impact on the highspeed acceleration(Let alone the power, cooling etc)
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Which acceleration formula are you using that eliminates the mass of the body that is accelerated after it exceeds 150km/h???
The rest of us relies on Newtons second law that says that acceleration is a product of Force divided on the mass of the body being accelerated.
a=F/m
Sure you have increased aerodynamic drag at higher speeds, but that "only" represents a negative force (F) in the opposite direction of the acceleration force and therefore equates to a smaller F in the equation as speed increases (that's why a car will accelerate less rapidly as speed increases - F
total = F
acceleration - F
drag). But regardless of speed, the mass of the accelerated body is still a vital factor, in fact the only factor that F is to be divided by...
Let's for arguments sake say that two cars have the exact same aerodynamic drag, horsepower, transmission etc, but that one weighs 1000kg and the other 2000kg.
Would you still say that both cars will accelerate just as quickly from 150-250km/h (since in your opinion weight doesn't matter after 150km/h)?
You wrote that it's a "matter of fact" that a 700hp car must be much quicker than a 500hp car and that weight does not play a part in this matter after 150km/h
Looking forward to the explanation of your alternative physical principle of acceleration
PS.
The Porsche has a power to weight ratio of roughly 0,33hp/kg and the MHR M6 has roughly 0,35hp/kg. If you consider that mass actually is a vital factor in acceleration (regardless of speed), you will see that the very similar power to weight ratio for the two cars also explain why they are so close (even though one has 200hp more). In fact, that the MHR accelerates away from the Porsche indicates; The MHR M6 has even more than 700hp, or better aerodynamics than the Porsche, or a combination of both (since both have double clutch manual transmissions I have not discussed differences in transmission losses etc here). If aerodynamics etc. are similar between the two cars, the MHR has to have a better power to weight ratio to outaccelerate the Porsche... (unless we are not to believe in the HP claim of the Porsche either?).