1991 Pontiac Firebird Trans Am Project Car

trans am parts / 1979 Firebird Trans Am Muscle Car signed by Burt Reynolds / 1967 Pontiac Firebird / 1969 Firebird Trans Am / 1974 Firebird Trans Am / 1969 Pontiac Firebird Trans Am convertible / 1991 Pontiac Firebird V8 5-Speed Manual Firebird / 1991 Firebird Formula Trans Am Project car

 


Pontiac Firebird Project car Formula

 

 

 

 

 

 

 

 

 

 

 

 

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1991 Pontiac Firebird Project car Formula

In 1991 Pontiac Firebird  received restyled front ends  look like Banshee show car . Pontiac had developed the  fourth generation Firebird. 1991 Pontiac Firebird Trans Am's ground effects restyled as well. 1991 Pontiac Firebird base model available with 1991 Pontiac Firebird Trans Am ground effects. Trans Am and 1991 Firebird Formula receive new fiberglass constructed flat wrap-around wing spoilers. The new styling brought higher sales, up from 1990's sales. All L98 cars now receive N10 dual cats standard. Pontiac Trans Am and '91 Firebird GTA get updated 2 piece taillights with "PONTIAC" scripted in orange across the panels. Center high mounted stop lamps move to inside top edge of hatch. '91Firebird convertible reintroduced. Firebirds with tops were sent to ASC for conversion to convertibles. Previously ASC converted cars for customers but it had never been through GM. The 91 Firebird convertible was available with the LHO 3.1L V6, the L03 5.0 V8, and the LB9 5.0 V8. Production improvements led to use of new body sealants that added to the rigidity of the body

 

 

 

 

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1991 Pontiac Firebird Drivetrain List

Year

Model

Trans Engine
code/type
CR Displ. HP Torque Induc-
tion
Manual
std.
Manual
opt.
(G92)
Auto
std.
Auto
opt.
(G92)

91

RS
Firebird

M5,A4 LH0 V6 8.5:1 3.1 (191) 140@4400 185@3600 MFI 3.42 ---- 3.23 ----

91

RS
Firebird
Formula

M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----

91

Z28
Formula
Trans Am
GTA

M5,A4 LB9 V8 9.3:1 5.0 (305) 205@4200 285@3200 TPI 3.08 ---- 2.73 ----

91

Z28
Formula
Trans Am
GTA

M5 LB9 V8 9.3:1 5.0 (305) 230@4200 300@3200 TPI ---- 3.42 ---- ----

91

Z28
Formula
Trans Am
GTA

A4 L98 V8 9.7:1 5.7 (350) 245@4400 345@3200 TPI ---- ---- ---- 3.23
1991Pontiac Firebird Production Numbers

Year

Total
Production

Firebird

Firebird
Convertible

Formula

Formula 1LE

Trans Am

Trans Am 1LE

Trans Am
Convertible

GTA

Firehawk

1991 51,184 37,162 950 5,490 46 3,452 6 555 2,915 8