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Turbo Grand Prix

This forum is for enthusiasts of the rare 1989-90 Pontiac Grand Prix Turbo.

2,047 topics in this forum

  1. NEW GM TGP RADIATOR! :)

    By Chris A,   
    • 23 replies
    • 3.2k views
    • Jeff M
    • Jeff M

  2. when does your turbo sound kick in 1 2

    By john99gtp,   
    • 38 replies
    • 3.2k views
    • Garrett Powered
    • Garrett Powered

  3. Sensors, Vacuum lines....

    By RebelGT,   
    • 4 replies
    • 3.2k views
    • RebelGT
    • RebelGT

  4. for whom it may concern (pmIII)

    By redgrandprix,
    • 1 reply
    • 3.2k views
    • 1 of 996
    • 1 of 996

  5. TGP IC pusher fan

    By Gibby,   
    • 16 replies
    • 3.2k views
    • Heartbeat1991
    • Heartbeat1991

  6. MUST READ on turbos/engine strokes/hp vs torque/turbo cam++ 1 2

    By Jeff M,   
    • 38 replies
    • 3.2k views
    • Jcrow
    • Jcrow

  7. FS - 1990 Pontiac Turbo Grand Prix

    By sir dano,   
    • 4 replies
    • 3.2k views
    • White93z34
    • White93z34

  8. Limited Slip for our transmissions???

    By 90TGP,   
    • 8 replies
    • 3.1k views
    • dykz34
    • dykz34

  9. Begging for more speed! 1 2

    By dkorinko,   
    • 31 replies
    • 3.1k views
    • Jon89le
    • Jon89le

  10. 4T65E swap

    By bullet,   
    • 16 replies
    • 3.1k views
    • bullet
    • bullet

  11. Question for those with aftermarket boost gauges 1 2

    By z284pwr,   
    • 31 replies
    • 3.1k views
    • z284pwr
    • z284pwr

  12. MY TGP progress thread UPDATE - ON THE ROAD! 1 2

    By patgizz,
    • 35 replies
    • 3.1k views
    • 90TGP
    • 90TGP

  13. Sticky brake lights

    By Heartbeat1991,   
    • 15 replies
    • 3.1k views
    • White93z34
    • White93z34

  14. got me a T3!!

    By Marcus18,   
    • 11 replies
    • 3.1k views
    • maddux31
    • maddux31

  15. I'm thinking of parting with my almost mint/stock McLaren GPT

    By alucardinc,   
    • 22 replies
    • 3.1k views
    • Jocko
    • Jocko

  16. My TGP Convertible Model

    By NTRCOOL,   
    • 18 replies
    • 3.1k views
    • NTRCOOL
    • NTRCOOL

  17. Gas Mileage... 1 2

    By SSEiyah93,   
    • 28 replies
    • 3.1k views
    • shadow
    • shadow

  18. TGP Engine Nightmare, Need Help! 1 2

    By dbtk2,
    • 30 replies
    • 3.1k views
    • dbtk2
    • dbtk2

  19. Who has a blow-off valve???

    By 90TGP,
    • 16 replies
    • 3.1k views
    • 90TGP
    • 90TGP

  20. IT'S ALIVE!!!!(TSTE+5-speed) 1 2

    By Marcus18,   
    • 35 replies
    • 3.1k views
    • Marcus18
    • Marcus18

  21. Finishing up

    By turbograndprix,
    • 6 replies
    • 3.1k views
    • Imp558
    • Imp558

  22. Fog Lamp Bulb Upgrade?

    By The Burning Rom,
    • 10 replies
    • 3.1k views
    • Garrett Powered
    • Garrett Powered

  23. So now im really screwed 1 2

    By Addicted2bass,   
    • 31 replies
    • 3.1k views
    • Addicted2bass
    • Addicted2bass

  24. New TGP owner here 1 2

    By Jaywags,
    • 31 replies
    • 3.1k views
    • Psych0matt
    • Psych0matt

  25. TGP's doing 180's 1 2

    By TGP5sp90,   
    • 31 replies
    • 3.1k views
    • SSEiyah93
    • SSEiyah93
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