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Thread: 54 Commander gas mileage

  1. #1
    Champion Member leaurent's Avatar
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    54 Commander gas mileage

    232, stromberg carb, auto trans DG 200. Looks like I am getting about 11 MPG. Is that pretty typical for a starliner 54?
    This car have no power

    Ignition = Ok with Pertronix
    Main jet = 0,57 (sparks colour, just light brown)
    because normal main jet are 0,49 not enough fuel, I was shaking while driving, even top speed 72 miles/h, sparks colour were white, and 12 MPG.
    Brake is ok, she rolls freely
    I checked this afternoon the timing camshaft = ok

    GT Hawk 62 V8
    Lark 62 hardtop skytop 6 cyl
    Silver Hawk 57 Hardtop 6 cyl
    Transtar 57 V8
    Starliner 54 V8

  2. #2
    Silver Hawk Member
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    You seem to have good skills and basic understanding, but something is definitely not as it should be. A '54 Commander should get at least 16 MPG on the highway and run at least 90 MPH.

    Have you done a compression test?

    Confirmed at least 30 degrees full centrifugal advance
    Confirmed at least 12 degrees vacuum advance?

    jack vines
    PackardV8

  3. #3
    Golden Hawk Member rockne10's Avatar
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    Quote Originally Posted by PackardV8 View Post
    A '54 Commander should get at least 16 MPG on the highway and run at least 90 MPH.
    At 90mph, 16 MPG would be about right. My '53 no longer houses its 232, but forty years ago when it did, I could get 22-23 MPG when I wasn't driving like a maniac. And that was with the DG200 and 3.54 rear. And you should be able to achieve 72mph just with second gear.
    "All attempts to 'rise above the issue' are simply an excuse to avoid it profitably." --Dick Gregory

    Brad Johnson, SDC since 1975, ASC since 1990
    Pine Grove Mills, Pa.
    '33 Rockne 10, '51 Commander Starlight, '53 Commander Starlight "Désirée"

  4. #4
    Champion Member leaurent's Avatar
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    Thanks PackardV8.
    Full ignition timing advance is 45° at 2600 rpm.
    I must check the compression, it is an idea, but normally this engine was rebuild, i found the old piston ring set in the trunk.
    GT Hawk 62 V8
    Lark 62 hardtop skytop 6 cyl
    Silver Hawk 57 Hardtop 6 cyl
    Transtar 57 V8
    Starliner 54 V8

  5. #5
    President Member TWChamp's Avatar
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    45 BTDC sounds like too much advance to me. I would agree with the numbers Brad posted.
    My 1952 Land Cruiser with 232 and overdrive got 24 MPH on the highway when driving 60 to 65, and the car had plenty of power.

  6. #6
    Champion Member leaurent's Avatar
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    With your help, i found the problem, at least one.
    It is the distribor, it is mad.
    (vaccum advance disconnected)
    At 550 rpm, advance perfect
    At 800 rpm, advance +6 (perfect)
    At idle speed, 550 rpm, advance +9
    I removed it, I cleaned it, same problem, i ordered parts for rebuild it.
    Thanks for your help
    GT Hawk 62 V8
    Lark 62 hardtop skytop 6 cyl
    Silver Hawk 57 Hardtop 6 cyl
    Transtar 57 V8
    Starliner 54 V8

  7. #7
    Golden Hawk Member StudeRich's Avatar
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    Interesting find. Were the Mechanical advance springs missing or stretched, the weights worn and jammed or loose?

    The distributor should be a normally dependable, early Delco Remy used in most GM Cars, not a later type Delco Window Dist. that was way less quality and durability.

    Sounds more like someone installed a Prestolite Dist. from a '62 to '64 V8.
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner




  8. #8
    Speedster Member greyben's Avatar
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    .057 jets seem pretty big for a 232 Stromberg. Certainly running rich will effect mileage and won't really produce more power.
    In the end Ignorance will have conquered all adversaries

    Don't hasten the end

  9. #9
    Champion Member leaurent's Avatar
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    It is the original Delco Remy on, 64 years ago and 140 000 miles
    I ordered
    Camshaft and cam
    Weights and 2 springs
    I will compare wear with new parts, in two weeks.
    GT Hawk 62 V8
    Lark 62 hardtop skytop 6 cyl
    Silver Hawk 57 Hardtop 6 cyl
    Transtar 57 V8
    Starliner 54 V8

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