Performance Data
Submitted by y84 on Thu, 11/05/2009 - 22:59
0 - 60 mph: 5.2 seconds 1/4 Mile, Elapsed Time: 13.38 seconds @ 103.5 mph Lateral Acceleration: 1.0 + g Braking: 60 - 0: 131 feet (no ABS system) 
1987 Trans Am GTA with 5.7L V8 and 3.27 : 1 rear axle:
0 - 60 mph: 6.89 seconds
1/4 Mile, Elapsed Time: 15.35 seconds @ 91.6 mph
Lateral Acceleration: 0.84 g
1988 Trans Am GTA with 5.7L V8 and 3.27 : 1 rear axle:
0 - 60 mph: 6.5 seconds
Lateral Acceleration: 0.86 g
1989 Trans Am GTA with 5.7L V8 and 3.27 : 1 rear axle:
0 - 60 mph: 6.5 seconds
Lateral Acceleration: 0.86 g
1989 20th Anniversary Trans Am Indy Pace Car with 3.8L V6 Turbo and 3.27 : 1 rear axle
0-60 mph: 4.6 seconds
Standing 1/4 mile time: 13.4 seconds
Trap Speed: 101 mph
Lateral Acceleration: 0.88 g
1990 Trans Am GTA with 5.7L V8 and 3.23 : 1 rear axle
0 - 60 mph: 6.5 seconds
Lateral Acceleration: 0.89 g
1991 Trans Am GTA with 5.7L V8 and 3.23 : 1 rear axle:
0 - 60 mph: 7.1 seconds
Lateral Acceleration: 0.90 g
1992 Trans Am GTA with 5.0L V8 and 3.42 : 1 rear axle:
0 - 60 mph: 7.3 seconds
Lateral Acceleration: 0.90 g
No talk about the performance of the GTAs would be complete without discussing the "ultimate" GTA in terms of overall performance. The now-famous "Firefox GTA", circa 1989, was the ultimate GTA in terms of high performance. The Firefox was based on a 1989 model GTA and had several special features that elevated above the rest of the lineage, equalling (and in some cases, surpassing) the hard-charging 1989 3.8L V6 Turbo Indianapolis 500 Pace Car. The Firefox was equipped with a 5.7L engine rate at 328 BHP @ 4500 RPM and put 400 FT/LB of torque to the ground at 3500 RPM. The car also featured a 4.10 : 1 rear axle ratio and a ZF six-speed-manual transmission (not to be seen until the fourth generation Firebirds in regular production); there was also a Brembo racing-derived brake system installed to insure that all stops were well taken care of. The Firefox rated as follows:
Photo courtesy of High Performance Pontiac Magazine
If you have any GTA performance data you would like to share, please notify me via e-mail. I am always looking for new performance numbers for GTAs! Original road test for our cars are very hard to find with the exception of the 1989 20th Anniversary Trans Am, so if you have any copies of old road tests, please feel free to send me the information here and I'll post it on this page...........