Wayne Cook
November 1, 2007
Here are the results of the best baseline pull. Our Windsor uses the stock crank and displacement. So with 274.83 hp at 5,100 rpm and a torque reading of 311.99 lb-ft at 3,700 rpm, these numbers are pretty respectable for a street-driven daily driver. The graph contains the same information as the numerical tables, however, certain parts (such as the substantial dip in both horsepower and torque at 4,350 rpm) become more evident on a graph.
RPM HP TQ
2,800 144.91 271.80
2,900 155.99 284.30
3,000 166.82 292.05
3,100 175.73 299.41
3,200 185.15 305.52
3,300 193.20 307.48
3,400 200.70 310.03
3,500 206.77 310.28
3,600 218.60 311.63
3,700 219.79 311.99
3,800 226.26 311.34
3,900 229.64 309.26
4,000 234.82 308.33
4,100 233.51 305.53
4,200 243.28 304.23
4,300 247.18 301.92
4,400 250.03 298.44
4,500 254.66 297.22
4,600 254.66 290.76
4,700 257.52 287.77
4,800 260.79 285.36
4,900 263.35 287.53
5,000 272.18 285.90
5,100 274.83 283.03

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The numbers tell the tale. The Dynojet recorded a peak horsepower figure of 289.48, an increase of 14.65 hp. The 322.69 lb-ft reading is also a substantial improvement, amounting to 10.70 lb-ft. Here's the chart for the final pull. Although the dip at 4,350 rpm has smoothed out, another smaller bump has emerged right above 4,600 rpm, necessitating a few additional tweaks from Spaccarotella to eliminate it. With a gain of more than 14 hp, accompanied by a 10.7 lb-ft improvement in torque, the Superior carburetor hop-up is a resounding success that you'll notice right away and feel through the seat of your pants.
RPM HP TQ
2,800 152.30 285.69
2,900 163.15 295.48
3,000 170.56 298.60
3,100 181.43 307.38
3,200 189.66 311.28
3,300 193.06 317.81
3,400 205.74 317.81
3,500 212.66 319.12
3,600 220.02 320.99
3,700 227.33 322.69
3,800 232.87 321.86
3,900 237.50 319.85
4,000 243.43 319.62
4,100 245.84 315.57
4,200 250.25 312.93
4,300 255.85 312.50
4,400 259.06 309.23
4,500 259.18 302.50
4,600 264.33 301.81
4,700 263.62 300.18
4,800 275.27 301.20
4,900 277.63 297.58
5,000 283.13 297.41
5,100 287.16 295.72
5,200 289.48 292.38

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