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Thread: Difference in LS2 Dwell times in stock tunes

  1. #1
    Senior Member Behold's Avatar
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    Apr 2010
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    Default Difference in LS2 Dwell times in stock tunes

    So. I have fitted LS2 coils on my LS1 and recently I noticed on a 2004 HSV the dwell times are lower than the 2008 HSV where they seem to be larger.

    Which are correct??? or does it not really matter that much.

    The car runs and drives so I'm happy it works but does it need refining?

    Thanks.
    -----------------------------------------------------------------------------------------
    Thanks Antony

    Holden Commodore GTS - LS1 5.7
    12 rib Crank Driven Vortech V2 Centri Charger (Intercooled) 9 PSI.
    LS6 Intake
    LS6 Heads
    YT 1.7 Roller Rockers
    BTR Dual Spring with Ti retainers
    BTR Hardend 7.400 Push rods
    Comp Cam JAMCAM
    2 Bar Map
    Mafless
    LS2 Coils

    PCM LS1B with 512KB Running COS5 v01290005

  2. #2
    Senior Member Behold's Avatar
    Join Date
    Apr 2010
    Posts
    155

    Default

    Bump
    -----------------------------------------------------------------------------------------
    Thanks Antony

    Holden Commodore GTS - LS1 5.7
    12 rib Crank Driven Vortech V2 Centri Charger (Intercooled) 9 PSI.
    LS6 Intake
    LS6 Heads
    YT 1.7 Roller Rockers
    BTR Dual Spring with Ti retainers
    BTR Hardend 7.400 Push rods
    Comp Cam JAMCAM
    2 Bar Map
    Mafless
    LS2 Coils

    PCM LS1B with 512KB Running COS5 v01290005

  3. #3
    Senior Member
    Join Date
    Aug 2016
    Posts
    157

    Default

    The 2008 has an LS2 and the 2004 has an LS1, right? I'm pretty sure the coils are different, so it makes sense that the dwell times follow the coils. I would check a couple other LS2 tunes and compare their dwell times to the 2008 HSV, and if they match (or are very close and differ from the LS1 dwell times) use the LS2 dwell times.

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