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Forum: GM V8 Tuning - Engine, Gas (Gen 3)

(1997-2009, LS1, LS6, ...)

  1. Sticky Thread Sticky: If you want us to help with a tune or scan issue post your .hpt file, log & .cfg too.

    Started by jimmyblue, 10-19-2009
    92 Attachment(s)
    • Replies: 0
    • Views: 253,803
    jimmyblue
    10-19-2009 Go to last post

  2. Sticky Thread Sticky: READ ME!!! General tuning info and how-to's

    Started by WS6FirebirdTA00, 02-07-2006
    • Replies: 0
    • Views: 454,850
    WS6FirebirdTA00
    02-07-2006 Go to last post

  1. Hanging Idle On LQ9 Swap

    Started by Travis7109, 05-10-2025
    4 Attachment(s)
    • Replies: 8
    • Views: 477
    RDF1
    05-10-2025 Go to last post

  2. Stock injectors on 2006 tahoe chev 5.3 swap

    Started by Mikeloko, 05-07-2025
    3 Attachment(s)
    • Replies: 10
    • Views: 1,154
    Mikeloko
    05-09-2025 Go to last post

  3. Cool LQ9 Truck Norris cam lean off idle

    Started by bennort199, 04-27-2025
    5 Attachment(s)
    • Replies: 8
    • Views: 1,210
    blindsquirrel
    05-09-2025 Go to last post

  4. WTF is HPTuners doing? No MAP linear/offset in 98 LS PCM anymore??

    Started by GrannySShifting, 05-08-2025
    2 Attachment(s)
    • Replies: 7
    • Views: 649
    2xLS1
    05-09-2025 Go to last post

  5. Recently bought 2005 CTS-V

    Started by Thesrt300, 05-08-2025
    7 Attachment(s)
    • Replies: 3
    • Views: 336
    bk2life
    05-09-2025 Go to last post

  6. 04 GTO P59 BLUE GREEN stock rev limiter? speed limiter?

    Started by JustinRaney, 05-01-2025
    5 Attachment(s)
    • Replies: 15
    • Views: 1,499
    blindsquirrel
    05-09-2025 Go to last post

  7. Recently bought 2005 CTS-V

    Started by Thesrt300, 05-08-2025
    6 Attachment(s)
    • Replies: 2
    • Views: 320
    Thesrt300
    05-08-2025 Go to last post

  8. 2005 gto m6 surges and dies in between gears at highway speed

    Started by [email protected], 05-07-2025
    2 Attachment(s)
    • Replies: 17
    • Views: 803
    blindsquirrel
    05-08-2025 Go to last post

  9. ISO Injector Data (GM 12609749, P59, Return-less)

    Started by killakam, 01-10-2024
    • Replies: 6
    • Views: 1,281
    blindsquirrel
    05-08-2025 Go to last post

  10. Stock 2000 Suburban 2500 log. Does everything seem normal?

    Started by y5mgisi, 05-01-2025
    2 Pages •
    1 2
    7 Attachment(s)
    • Replies: 38
    • Views: 4,744
    abc
    05-08-2025 Go to last post

  11. Question C5 Z06 BTR Stage 3

    Started by itzant2005, 05-07-2025
    • Replies: 0
    • Views: 298
    itzant2005
    05-07-2025 Go to last post

  12. Silverado 4.8l to 6.0l LQ4, Truck Norris Cam, First Start

    Started by Seooptimizer, 03-16-2025
    1 Attachment(s)
    • Replies: 7
    • Views: 1,524
    blindsquirrel
    05-07-2025 Go to last post

  13. hanging idle until I get below 3 mph

    Started by smallblock500, 05-06-2025
    5 Attachment(s)
    • Replies: 11
    • Views: 1,276
    Alvin
    05-07-2025 Go to last post

  14. 5.3 Ls tinning isses

    Started by Dark4u789, 05-06-2025
    2 Pages •
    1 2
    2 Attachment(s)
    • Replies: 22
    • Views: 1,659
    bk2life
    05-07-2025 Go to last post

  15. P59 cruise control calculation

    Started by tyeler18, 05-21-2021
    1 Attachment(s)
    • Replies: 6
    • Views: 1,971
    Dark4Watch
    05-07-2025 Go to last post

  16. Gen 3 6.0, pulling timing but not for knock.

    Started by Brogre, 05-05-2025
    2 Attachment(s)
    • Replies: 8
    • Views: 1,159
    RDF1
    05-06-2025 Go to last post

  17. Newer Injector in LM7

    Started by rgarza38, 05-05-2025
    2 Attachment(s)
    • Replies: 5
    • Views: 918
    rgarza38
    05-06-2025 Go to last post

  18. Question need some input on the tune - 408ci first base tune

    Started by fst100, 05-05-2025
    2 Attachment(s)
    • Replies: 3
    • Views: 505
    edcmat-l1
    05-06-2025 Go to last post

  19. Anyone can recommend a good tuner ?

    Started by Mbservicenorway, 05-06-2025
    • Replies: 3
    • Views: 429
    Alvin
    05-06-2025 Go to last post

  20. 2000 5.3 Vortec with ls1 intake. Cold start is a nightmare. Need help

    Started by Mbservicenorway, 05-04-2025
    1 Attachment(s)
    • Replies: 18
    • Views: 2,647
    gtstorey
    05-06-2025 Go to last post
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