1990 Pontiac Firebird & '90 Pontiac Trans Am

dave8412  Jun 7 2006 - 1:42pm   

1990 Pontiac Firebird

1990 Pontiac Firebird History



Drivers side air bag now standard in the 1990 Firebird. 1990 Pontiac Firebird interior again meets a redesign, this time the changes are much less drastic. Pontiac changes the lower dash and underdash panels in the '90 Firebird. Accessory switches get new panel above heater and radio controls. Console gets new shift indicator and different leather boot. Steering wheel mounted radio controls disappear from the GTA with the addition of the airbag. 1990 L98 cars were no longer offered with T-Tops due to supposed CAFE restrictions, although 1989 L98 cars were available with T-Tops. Like the 1990 Camaro, the 1990 Firebird also only received a half year production as Pontiac raced to release the 1991. LB9 and L98 platforms updated with new speed density fuel injection. The elimination of the MAF sensor was for cheaper production costs and supposed improved performance.

1990 Pontiac Firebird Drivetrain List
Yr Model Trans Engine
code/type
CR Displ. HP Torque Induc-
tion
Manual
std.
Manual
opt.
(G92)
Auto
std.
Auto
opt.
(G92)
90 RS
Firebird
M5,A4 LH0 V6 8.5:1 3.1 (191) 140@4400 180@3600 MFI 3.42 ---- 3.23 ----
90 RS
Firebird
Formula
M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
90 IROC-Z
Formula
Trans Am
GTA
M5,A4 LB9 V8 9.3:1 5.0 (305) 210@4400 285@3200 TPI 3.08 ---- 2.73 ----
90 IROC-Z
Formula
Trans Am
M5 LB9 V8 9.3:1 5.0 (305) 230@4400 300@3200 TPI ---- 3.42 ---- ----
90 IROC-Z
Formula
Trans Am
GTA
A4 L98 V8 9.7:1 5.7 (350) 245@4400 345@3200 TPI ---- ---- ---- 3.23
1990 Pontiac Firebird Production Numbers
Year Total
Production
Firebird Formula Trans Am Trans Am 1LE GTA
1990 20,553 12,612 4,834 1,056 4 1,447
 
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