Vehicle Performance Analysis - Page 1 of 3
1957 MGA
Engine:-------------- Vehicle:--------------------
Max Power = 88 H.P. Vehicle curb weight = 1862 lbf
Speed at Tmax = N/A RPM Added driver & payload = 600 lbf
Speed at Pmax = 5000 RPM Rolling resisitance = 1.67 %
Drag coefficient = 0.70
speed torque power Frontal area = 2138.4 in2
(RPM) (ft lbf) (HP)
500 111 10.5 1st gear = 3.640
1000 111 21.1 2nd gear = 2.214
1500 111 31.6 3rd gear = 1.374
2000 111 42.1 4th gear = 1.000
2500 111 52.7 Differential reduction = 4.300
3000 111 63.2 Mechanical efficiency = 95 %
3500 111 73.7 Tire diameter = 24.5 in
4000 111 84.3
4500 101 86.6 mu = 0.9 g's
5000 92 87.8 % weight on drive wheels = 55 %
5500 83 86.5 h = 17
6000 74 84.3 WB = 94.5
6500 64 79.4 h/WB = 0.180
7000 55 73.7
7500 52 73.7 total drag coef. = 0.025591936 lbf/MPH2
8000 50 76.2 overall reduction = 0.065220632 ft
To = 111.0 ft lbf
C1 = 0.00444 ft lbf/RPM
C2 = 8.88E-07 ft lbf/RPM2
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