Power Plant:
The Super Coupe's comes equipped with a 3.8 liter
V-6 powerplant that is force-fed with an Eaton Corporation supercharger. The 8.2
to 1 compression ratio, combined with six computer controlled sequentially fuel
injectors, completes the well rounded underhood package. While running at a
maximum 15,600 rpm's, the supercharger provides 12 psi of boost and as a
resultant it develops 210 bhp at 4000 engine rpm's. The engine develops 315
lb-ft of torque at 2600 rpm. The supercharged V-6 delivers ample power without
much noise but an underdrive kit and a performance chip are available to boost
the horsepower rating to 255 bhp.
89-93 Engine
Specifications:
Type: Supercharged OHV V-6
Bore x stroke, mm: 96.8 x 86.0
Displacement, cc: 3802
Displacement, ci: 232
Compression ratio: 8.2:1
Bhp@RPM, SAE net: 210@4000
Torque, lb-ft@RPM: 315@2600
Fuel delivery: Multi-Port Electronic fuel-injection
Fuel requirement: unleaded, 92+ octane
Exhaust-emission control equipment: 3-way catalytic converter,
exhaust-gas re-circulation, air injection
Transmission:
The 4-speed automatic transmission features a 0.67:1 overdrive ratio and an
electromechanical lockup to eliminate torque-converter slippage on the
supercharged models.
Braking System:
The Thunderbird SC braking system features 4 wheel disc brakes with ABS. The
Thunderbird SC can stop in 140 ft from 60 mph. From a speed of 80 mph, it takes
the SC 247 ft. to come to a safe stop.
Suspension System:
Up front, the T-Bird rides on a short and long-arm system rather than a more
conventional MacPherson-strut arrangement. This system features variable-rate
coil springs, a 1.2 in. diameter anti-sway bar and electronically controlled
nitrogen-pressurized gas shocks.
The rear
suspension is even less conventional for a rear wheel drive domestic sedan. It's
fully independent with a large lower H-arm on which the variable-rate coil
spring rides and there is a smaller U channel upper arm. These arms are tied
together by a cast aluminum knuckle. In addition, there is a 1.1 inch diameter
anti-roll bar and gas-pressurized shocks with electronically controlled damping.
The car's gripping power comes from the big P225/60R-16 Goodyear Eagle GT-II's
mounted on 7 inch wide light alloy wheels.
The SC is equipped with an electronic suspension control. You can definitely
feel a difference in the ride when you switch from the soft and sport (Firm)
setting. The ride control system is made by Tokico. A computer monitors vehicle
speed, brake-line pressure, steering angle and engine-computer acceleration
signals to determine the shock valving. There are two switch settings. These
settings are: Auto and Firm. The automatic setting selects soft shock valving
for a smooth, comfortable ride. When driving conditions require a firm ride, it
automatically overrides the soft valving. The firm position is simply an
override that selects the firm setting in all driving modes.
Drivetrain:
Transmission: 4-Speed Automatic Overdrive
Gear ratios:
4th (0.67) .... 2.73
3rd (1.00) .... 3.90
2nd (2.32) .... 6.33
1st (3.75) .... 10.24
Transmission:
5-Speed Manual Shift
Gear ratios:
5th (0.75)
4th (1.00)
3rd (1.43)
2nd (2.32)
1st (3.75)
Acceleration:
0-100 ft: 3.2
0-500 ft: 8.6
0-1320 ft (1/4 mi); 15.9 @ 88.5 mph
Time to speed, sec
0-30 mph: 2.5
0-40 mph: 3.8
0-50 mph: 5.5
0-60 mph: 7.4
0-70 mph: 10.4
0-80 mph: 13.1
0-90 mph: 16.4
0-100 mph: 20.8
Quarter Mile times for "Box Stock" Thunderbird SC 's:
Production Numbers:
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