Originally Posted by mustang_iislow View Post
Is there any way to make the auto numbers closer to that of the 5-speed??? Also curious if you had torque ratings as well???
Yep, do a T5 swap and replace the LB series computer with an LA series. Probabaly want to swap rearends while your at it. 5-speeds had 3.55:1 as opposed to auto's which had 3.73:1. The auto motors were the exact same motor as 5-speed motors. I'm fairly sure they were both large VAM and 35# injectors. I believe the detuning was done in the computer. '87-'88 TurboCoupe SPECIFICATIONS
Vehicle Type: Front-engine, rear-drive; 2-door 5-passenger sedan
2.3L (2295cc, 140 cu in) 4 cylinder engine 2 valves per cylinder, overhead cam 190 HP with 5 speed trans, 150 HP with automatic trans Torque 240 @ 3400 8:0:1 compression ratio Bore and stroke: 3.780" x 3.126" (96.0mm X 79.2mm) MPEFI injection Cooling fan turns on at 221 degrees F
IHIRHB-52 turbo with integral waste gate
air to air intercooler, dual active air scoopes on hood
intercooler cools air by ~60% on its way to the cylinder head
(denser air=more HP)
Transmission: Manual: Borg Warner T-5 short throw 5 speed manual trans Top speeds per gear: 1st - 33mph, 2nd - 56 mph, 3rd - 89 mph, 4th - 131 mph, 5th - 143 mph Automatic: Ford A4LD - 4 speed automatic with overdrive Gearing:
3:55 final drive ratio with T5 transmission,
Gear ratios: 1st - 3:97, 2nd - 2:34, 3rd - 1:46, 4th - 1:0, 5th -0:0.8
3:73 with the A4LD auto transmission
8.8" rear end
wheelbase = 104.2" length = 202.1" height = 53.4" width = 71.1" front tread = 58.1" rear tread = 58.5" trunk volume = 14.6 cu.ft. fuel capacity = 22.1 gal. weight = 3415 lbs (3419 lbs with AOD trans) 5 passenger capacity 0.36 Cd drag coefficient steering: 2.4 turns lock to lock, curb to curb circle = 39.4 ft, 15:0:1 on center rack and pinion firm suspension settings kick in (in ~40ms) with 0.3g or more cornering or braking, when throttle is floored, when boost exceeds 10 psi, or when speed exceeds 80 mph
Miscellaneous numbers, times, and levels:
1/4 mile - 16.3 seconds @ 84.5 mph
60 mph to 0 mph stopping distance - 138 ft.
0.82 lateral g
700 ft slalom speed average = 61.2 mph
0-30 mph in 2.5 sec, 0-50 mph in 5.9 sec, 0-60 mph in 8.5 sec, 0-70 mph in 11.7 sec, 0-80 mph in 14.5 sec
0-100 ft in 3.2 sec, 0-500 ft in 8.8 sec, 0-1320 ft in 16.3 sec
interior noise: at idle - 54 dBA, 1st gear max - 84 dBA, 70 mph steady - 71 dBA
PERFORMANCE: (Motor Trend). Top Speed: 142 mph
0-60: 8.59 sec.
1/4 mile: 16.48 sec @ 85.1 mph
Braking 60-0: 134 ft.
Lateral Acceleration: 0.82 g
Top Speed: 143 mphPERFORMANCE: (Road & Track)
0-60: 8.5 sec.
1/4 mile: 16.3 sec. @ 84.5 mph
Braking 60-0: 138 ft.
Lateral Acceleration: 0.79 g
Test results shown are with T-5 tranmission
1987 had arrived and development of the Thunderbird SuperCoupe, a successor to our TurboCoupes, was not complete. Ford decided to insert the 1987-1988 redesigned Thunderbird TurboCoupe into their lineup as a spacer, to allow for finished production of the SuperCoupe for model year 1989. This new Thunderbird combined a new front valence and rear-end with a few more tricks under hood to produce the ultimate stock TurboCoupe. The addition of intercooling significantly increased power output. The addition of rear disc brakes increased braking ability. Hood vents and a sloped front end gave this Thunderbird a bird-like appearance, in addition to plenty of power to play.