did a 305 throtle body come in trans am's or were they all tuned ports?

 

They are all TPI, starting in 1990.

------------------
91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

Built on Wednesday

 

I've never heard that before.. anyone have proof/literature to back it up?

 

It doesn't need to be backed up, it is accepted fact.

 

excuse MRJs retardedness, yes there where TBI trans ams after 90, most where tpi but there where TBI. TBI was baseline on all trans ams until 92.

 

ONEFINE8T9, you're an idiot. Go away.

 

MrJ is right and that is final

 

Fromwhat I know,90 was the last year for the LO3 in the Trans Am.The LB9,was the base engine beginning in 91.However,the L03 was the base in the 91-92 Formulas.

------------------
1990 Trans Am GTA,Black/Black Leather,350,auto 3.23,Dual Cats,
SLP Package,SLP Torque Converter/Shift Kit,Fastchip,GSC's
G-tech 0-60 5.1 1/4mile 13.6@104
member www.transamgta.com
Previous Thirdgen
1986 Camaro IROC-Z

 

1989 was the last year for the L03 in the Trans Am. When the TPI engines went speed density, they also became the standard engines in Trans Ams (and 90 IROCs and 91/92 Z28s too)

------------------
91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

Built on Wednesday

 

My 1992 Trans AM owners manual shows that both engines were available in 1992 TBI and TPI.


1993 was the intro to the fourth gen and that's another message board.


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1992 WS6 Trans Am, 305 TPI, Automatic
Flow-Pro exhaust system.

 

In 1990, the standard engine in Trans Ams was the 305 TPI, with the 350 TPI as an option. This was also true for 1991 and 1992.
End of story.

 

well i guess thats that, MRJ "ur an idiot go away"

 

That is because the manual is for all firebirds. The 1990 Pontiac brochure says the Formula could have any of the V-8's, while the T/A was only availible with the TPI motors.

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89 Transam GTA, 350TPI, auto, 3.27 rear, dual cats, gray.
Magnaflow cat-back,
K&N open element,
Best E.T. 14.63@95mph

 

transamgta just wondering as to why ur sig says K&N open element and u have TPI

 

Because it's a cone shaped one on the end of the rubber ducting in place of the air canister.

------------------
89 Transam GTA, 350TPI, auto, 3.27 rear, dual cats, gray.
Magnaflow cat-back,
K&N open element,
Best E.T. 14.63@95mph