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Superformance SPF GT40 - Familiarity Breeds Perfection
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FACTS BOX | 1966 Ford GT 40 Mk II Le Mans Winner | Superformance GT MKII A | | GENERAL | | Test weight with 150-lb driver | 2,862 | 2,550 | | Race weight, lb | 2,682 | 2,400 | | Weight Distribution front/rear, % | 38/62 | 40/60 | | Wheelbase, in | 95.0 | 95.2 | | Track front/rear, in | 57.0/56.0 | 56/59 | | Overall length, in | 163.0 | 163 | | Width (over scoops), in | 70.0 | 70.5 | | Height, in | 40.5 | 39.5-40.5 | | Frontal area, sq ft | 15.8 | 15.8 | | Fuel tank capacity, gal | 42 | 20 | | ENGINE | | Family | Ford FE | Ford 351W | | N. cyl & type | V-8 | V-8 | | Bore x stroke, in | 4.232 x 3.784 | 4.125 x 4.000 | | Displacement, cu in | 427 | 427 | | Compression ratio | 10.5 | 10.25 | | Bhp @ rpm | 485 @ 6,200 | 550 @ 5,600 | | Torque @ rpm, lb-ft | 475 @ 4,000 | 535 @ 5,200 | | Carburetion | 1 x 4 bbl | EFI | | DRIVE TRAIN | | Transaxle | Ford T-44 | RBT | | Speeds | 4 | 5 | | Gear ratios, transmission/overall | | 1st | 2.22 / 6.18 | 2.58 / 9.73 | | 2nd | 1.43 / 3.96 | 1.61 / 6.07 | | 3rd | 1.19 / 3.30 | 1.14 / 4.30 | | 4th | 1.00 / 2.77 | 0.846 / 3.19 | | 5th | 0.642 / 2.42 | | Differential ratio | 3.09 | 3.77 | | Transfer gear ratio | 0.899 | | CHASSIS & SUSPENSION | | Frame type | Semi-monocoque, sheet steel | Semi-monocoque, sheet steel | | Brake type | Vented disc, single caliper | Vented disc, single caliper | | Tires | Goodyear "A" | Yokohama Avid | | Front | 9.75-15(250/60-15 approx.) | 225/60R15 (test)
225/50R15 (opt) | | Rear | 12.8-15
(325/60-15 approx.) | 275/60R15 (test)
295/50R15 (opt) | | Wheels | | Front | 15x8 | | Rear | 15x10 | | Steering type | Rack-and-pinion | Rack-and-pinion | | Front suspension | Independent with unequal-length A-arms, coil springs, tube shocks, anti-roll bar | Independent, with unequal-length A-arms, coil springs, tube Shocks, anti-roll bar | | Rear suspension | Independent with trailing arms, unequal-length lateral arms, coil springs, tube shocks, anti-roll bar | Independent with trailing arms, unequal-length lateral arms, coil springs, tube shocks, anti-roll bar | | INSTRUMENTATION | | Instruments | 7,000-rpm tach
oil temperature
water temperature
fuel pressure
ammeter
gearbox oil temperature | 8,000-rpm tach
oil pressure
water temperature
oil temperature
fuel level
ammeter
200mph speedometer | | Warning lights | differential oil pressure
engine oil pressure | high beam
alternator
turn signal
radiator cooling fans | | CALCULATED DATA | | Engine rpm @ 60 mph | 1905 | 1811 | | Lb / hp (with driver) | 5.8 | 4.6 | | SPEED IN GEARS | | mph @ rpm | | 1st | 89 @ 6200 | 53 @ 6400 | | 2nd | 140 @ 6200 | 85 @6400 | | 3rd | 170 @ 6200 | 120 @ 6400 | | 4th | 205 @ 6200 | 161 @6400 | | 5th | 207 @ 6230 | | ACCELERATION | | Time to speed | | 0-40 mph, sec | 2.8 | 2.1 | | 0-60 mph, sec | 4.2 | 3.7 | | 0-80 mph, sec | 5.6 | 4.8 | | 0-100 mph, sec | 8.2 | 6.9 | | 0-120 mph, sec | 10.8 | 9.2 | | 0-140 mph, sec | 14.0 | 11.8 | | 0-160 mph, sec | 19.1 | 15.3 | | 0-180 mph, sec | 27.0 | 21.7 | | Time to distance | | Quarter mile, sec @ mph | 12.0 @ 129 | 11.2 @ 135 | | FUEL ECONOMY | | Steady state mpg in top gear | | 70 mph | 16.5 | 16.0 | | 100 mph | 15.7 | 15.1 | | 150 mph | 10.1 | 9.62 | | 200 mph | 6.2 | 5.9 |
*Comparison Data from Superformance LLC
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