OK, so summer in Florida isn't exactly the ideal time to be laying down glory numbers on the chassis dyno, but when we get a crack at a ’10 GT500, we have to hit the dyno when we can. After the jump, you can learn a bit more about what we found out at VMP Tuning (www.vmptuning.com) in Deltona, Florida...
With ambient temperatures exceeding 90 degrees in the dyno room, our ’10 GT500 tester cranked out peaks of 478.53 horsepower and 470.43 lb-ft of torque at the rear wheels. What we learned on the VMP Dynojet is that the ’10 GT500 indeed lives up to its more potent rating from Ford. In fact, if you buy into the commonly tossed around 15-percent drivetrain loss number, you might even say the latest Shelby is a bit under-rated at 540 flywheel horsepower, as adding the 15 percent back into our rear-wheel number would add up to over 560 flywheel ponies.
While our GT500 tester's 5.4 could still be considered at tight engine with just over 2,000 miles on the odometer, the ’10 still impressed. For comparison's sake, my ultra-low-mileage ’08 GT500 only produced 437.92 hp and 434.81 lb-ft of torque in far more favorable conditions (April in Illinois) on the Anderson Ford Motorsport Dynojet. Stronger stock variants of the ’07-’09 GT500 only put down 440 to 450, so suffice it to say the ’10 GT500 is definitely packing more heat out of the box than its predecessor.
If you are a data geek like me, you can dig a bit deeper into the numbers here:
RPM POWER TORQUE BOOST AIR/FUEL
1,500 93.87 328.66 4.56 14.86
1,600 105.38 345.91 4.87 14.77
1,700 115.22 355.97 5.06 14.75
1,800 126.19 368.19 5.41 14.54
1,900 142.42 393.68 5.66 13.41
2,000 152.16 399.59 5.86 12.69
2,100 161.70 404.40 6.06 12.20
2,200 170.54 407.14 6.36 11.96
2,300 180.29 411.70 6.63 11.74
2,400 188.65 412.83 6.74 11.58
2,500 201.20 422.68 7.22 11.48
2,600 211.87 427.98 7.52 11.38
2,700 221.18 430.24 7.57 11.38
2,800 230.56 432.47 7.64 11.42
2,900 242.31 438.85 7.68 11.41
3,000 251.35 440.03 7.76 11.29
3,100 262.75 445.17 7.81 11.39
3,200 275.05 451.43 7.88 11.41
3,300 286.52 456.00 8.20 11.50
3,400 296.24 457.61 8.51 11.56
3,500 308.01 462.20 8.62 11.56
3,600 317.37 463.01 8.91 11.55
3,700 326.88 464.01 8.86 11.53
3,800 336.38 464.92 8.73 11.49
3,900 345.24 464.94 8.94 11.57
4,000 355.55 466.85 9.01 11.64
4,100 365.82 468.61 8.97 11.51
4,200 374.33 468.10 8.91 11.48
4,300 384.15 469.21 8.81 11.48
4,400 392.24 468.20 8.79 11.49
4,500 402.20 469.42 8.77 11.52
4,600 407.86 465.68 8.73 11.57
4,700 414.54 463.24 8.67 11.45
4,800 422.20 461.97 8.53 11.33
4,900 423.02 453.42 8.46 11.19
5,000 429.63 451.29 8.75 11.43
5,100 437.51 450.55 8.97 11.59
5,200 447.00 451.48 8.75 11.65
5,300 454.15 450.05 8.81 11.59
5,400 456.80 444.29 9.07 11.56
5,500 459.63 438.91 9.30 11.48
5,600 462.19 433.48 9.54 11.22
5,700 462.94 426.56 9.75 11.18
5,800 469.88 425.49 9.83 11.17
5,900 472.66 420.76 9.84 11.09
6,000 475.96 416.63 9.91 11.09
6,100 477.08 410.76 9.83 11.12
6,200 473.11 400.78 9.57 12.67
As you can see, the ’10 GT500 makes pretty big steam with less than 10 pounds of boost. We suspect with better weather conditions, these numbers might be 10-15 horsepower higher, which would put this car oh so close to 500 rwhp off the dealer lot!
Of course, we didn't just make one pull and go home. We might have tried to see what Ford left on the table in this newly optimized package, but you'll have to check out an upcoming issue of the magazine to see what can be easily gained on these cars...