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Thread: Blown 5.7 Hemi

  1. #1
    Tom Manner Guest

    Default Blown 5.7 Hemi

    5.7 Hemi, 9.6 compression, caburated, mild cam.
    Looking for a good starting place on a timing curve.
    Where can I get the figures used for a LS9 Chevy shown on the MSD charts?

  2. #2
    msdtech1955 Guest

    Default

    what size blower? over drive? the more info you give me ...the better we can help.

    we actually did some testing with oddy's automotive..
    with a 8-71 and twin 750 carbs.

  3. #3
    Tom Manner Guest

    Default Blown 5.7 Hemi

    The blower is a Magna Charger model 122
    The blower pulley is 3.4" so the drive ratio is 2.06 to 1.
    The MSD system shows 8 lb. of boost.

    Cam specs; Duration, I- 268 deg.
    E- 274 deg.
    Separation 112 deg.

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