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Turbo Grand Prix

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


2,050 topics in this forum

  1. this garrett t-25 any good? (brand new)

    • 5 replies
    • 1k views
  2. A just got Chipped!

    • 0 replies
    • 1k views
  3. 3.1 litre turbo 3.1 litre swap??

    • 1 reply
    • 1k views
  4. Cleaning the turbo

    • 2 replies
    • 1k views
  5. Turbo Flange gasket?

    • 3 replies
    • 1k views
  6. turbocharger flange repair

    • 4 replies
    • 1k views
  7. Positive Evolution of the TGP Message Forum, Great Job!

    • 3 replies
    • 1k views
  8. Hmm? More Turbo questions

    • 2 replies
    • 1k views
  9. How difficult & costly is a 5 speed swap???

    • 0 replies
    • 1k views
  10. Anyone with ported heads have a flowsheet?

    • 6 replies
    • 1k views
  11. A few new things

    • 4 replies
    • 1k views
  12. JeffM "turbograndprix.com" site pictures

    • 0 replies
    • 1k views
  13. Replace the Cat converter?

    • 5 replies
    • 1k views
  14. porting the intake

    • 0 replies
    • 1k views
  15. Replacement Cooling Fans

    • 1 reply
    • 1k views
  16. Pics of Main #3 and Lobe #10

    • 5 replies
    • 1k views
  17. Bad injectors???

    • 3 replies
    • 1k views
  18. Running rich under full throttle?

    • 2 replies
    • 1k views
  19. Engine replace

    • 2 replies
    • 1k views
  20. TGP Trans codes

    • 1 reply
    • 1k views
  21. exhuast pivot donut thing

    • 3 replies
    • 1k views
  22. TSTE Wiring Diagram?

    • 0 replies
    • 1k views
  23. Hey Jeff M!

    • 3 replies
    • 1k views
  24. Fuel problomes

    • 1 reply
    • 1k views
  25. Computer board thingy under passenger seat?

    • 5 replies
    • 1k views
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