本帖最後由 newkid 於 2010-2-18 01:58 編輯
May be Ching can look at the following departments to understand why, in the real world, F1 cars can go around a circuit much faster than touring cars (e.g. the Japan Super GT500 series). The 2009 best laptime at Suzuka for F1 is 1'32.569 while that for GT500 is 1'58.093.
1. Power-to-weight ratio
GT500: e.g. for the 2009 Lexus Petronas TOM's SC430, the power-to-weight ratio is estimated to be 500bhp/1100kg = 0.45bhp/kg
F1: e.g. for the 2009 Ferrari F60, the power-to-weight ratio is estimated to be 780bhp/600kg = 1.3bhp/kg
Hence, F1 has much better power-to-weight ratio and so it can provide better acceleration and can attain higher top speed given the same distance to accelerate.
Similarly, as F1 cars are much lighter, given the same braking force, F1 cars can brake much later and require much shorter braking distance.
2. Tire-grip
F1 has much wider tires which can create more grip than the narrower tires of touring cars. As such, F1 can go around corners at a much higher speed without skidding and it can accelerate/decelerate much harder.
3. Aerodynamics
The analysis isn't as straight forward as the previous two as:
1. F1 has a open-wheel design which causes turbulence and so such aerodynamics is not as efficient as GT500 which is close-wheel
2. on the other hand, the aerodynamic effect of wings and bodyworks of the two series are not obvious to me as:
a) large wing tends to create more downforce but, at the same time, it produces more drag
b) the body shapes between F1 and touring cars are largely different (e.g. F1 has pointed nose and large sidepods which touring cars don't have), so not exactly sure which one is more efficient aerodynamically
Yet, I tend to think the overall aerodynamic efficiency of F1 cars is better
Perhaps you can perform a similar analysis for 1/10 RC cars and try to understand why the interaction among these three aspects on 1/10 touring cars can make them go faster than 1/10 F1 
For me, I think tire-grip and power-to-weight ratio dominate in 1/10 RC cars and tire-grip is the limiting factor. Besides, 1/10 RC touring is 4WD and you have 4-wheel-braking (assuming one-way is not use) while that for 1/10 F1 is RWD and it has rear-wheel-braking only. |
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