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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: 108,679
    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: 292,838
    WS6FirebirdTA00
    02-07-2006 Go to last post

  1. GPS speedometer signal adaptor....thoughts?

    Started by cobra30689, 06-24-2023
    • Replies: 1
    • Views: 374
    TheMechanic
    06-25-2023 Go to last post

  2. GMT800 No AC with SD only and high volt alternator

    Started by stroh, 06-03-2023
    2 Attachment(s)
    • Replies: 2
    • Views: 486
    stroh
    06-25-2023 Go to last post

  3. Looking for a start up tune for a whipple equipped 04 5.3

    Started by 427Lsnext, 06-24-2023
    • Replies: 0
    • Views: 285
    427Lsnext
    06-24-2023 Go to last post

  4. Semi newbie needing help

    Started by Tranzman, 06-22-2023
    3 Attachment(s)
    • Replies: 16
    • Views: 1,230
    bk2life
    06-24-2023 Go to last post

  5. lean and rough idle

    Started by 366LS6v, 06-23-2023
    4 Attachment(s)
    • Replies: 8
    • Views: 962
    tana99ss
    06-24-2023 Go to last post

  6. TH400 P/N/Gear Signal and VSS

    Started by MHK5, 06-18-2023
    1 Attachment(s)
    • Replies: 5
    • Views: 1,068
    MHK5
    06-24-2023 Go to last post

  7. Do you have a better suggestion?....MPVI3 + ProLink + TWO AEM 30-0300's

    Started by LJS3SP, 06-22-2023
    • Replies: 5
    • Views: 836
    LJS3SP
    06-23-2023 Go to last post

  8. 2000 454 black box tune question

    Started by GregK, 06-09-2023
    2 Attachment(s)
    • Replies: 6
    • Views: 813
    horsepowerguru427
    06-23-2023 Go to last post

  9. Trans Revolutions per Mile - Wizard - Something Not Right

    Started by slarsen47, 06-19-2023
    4 Attachment(s)
    • Replies: 10
    • Views: 1,594
    bk2life
    06-23-2023 Go to last post

  10. AFR gets very lean at revving

    Started by 68camaroLS6, 06-21-2023
    3 Attachment(s)
    • Replies: 9
    • Views: 890
    68camaroLS6
    06-23-2023 Go to last post

  11. Acts like rev limiter is in place

    Started by tt460, 06-21-2023
    2 Attachment(s)
    • Replies: 8
    • Views: 788
    tt460
    06-23-2023 Go to last post

  12. Post Gen VI BBC Tuning assistance request.

    Started by oldpartsnrust, 06-09-2023
    2 Pages •
    1 2
    6 Attachment(s)
    • Replies: 33
    • Views: 2,457
    GregK
    06-22-2023 Go to last post

  13. Built L29, 0411 swap - can Hp tuners do the crank relearn and cam position?

    Started by Scott-m, 06-20-2023
    • Replies: 1
    • Views: 418
    bk2life
    06-22-2023 Go to last post

  14. newbie first time ls swap need some guidance

    Started by jesslordz, 06-21-2023
    • Replies: 6
    • Views: 877
    bk2life
    06-22-2023 Go to last post

  15. Cant find whats driving desired RPM up

    Started by TINKRD, 06-22-2023
    2 Attachment(s)
    • Replies: 0
    • Views: 319
    TINKRD
    06-22-2023 Go to last post

  16. P0704 code with a 4L80 trans?

    Started by jesslordz, 06-22-2023
    • Replies: 0
    • Views: 284
    jesslordz
    06-22-2023 Go to last post

  17. Great power, decent driveability, CRAP mileage. Help?

    Started by LRI, 05-20-2017
    2 Pages •
    1 2
    • Replies: 37
    • Views: 11,949
    bk2life
    06-21-2023 Go to last post

  18. OBD1 question.

    Started by GM Dude, 06-21-2023
    • Replies: 0
    • Views: 269
    GM Dude
    06-21-2023 Go to last post

  19. LS Error code P3051

    Started by bones5133, 06-21-2023
    9 Attachment(s)
    • Replies: 3
    • Views: 591
    blindsquirrel
    06-21-2023 Go to last post

  20. Solid base tune now need more power

    Started by jbwilk106, 06-20-2023
    2 Attachment(s)
    • Replies: 3
    • Views: 597
    bk2life
    06-21-2023 Go to last post
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