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Thread: Speedometer Accuracy??

  1. #1
    Join Date
    Oct 2003
    Location
    Beaufort, SC
    Posts
    7,719

    Speedometer Accuracy??

    I have wondered how accurate my speedometer is with the 295's out back and "Rev's Per Mile" adjusted by DiabloSport so I "Zero'd" the trip odometer and my GPS Monday and my total miles as of yesterday are recorded as:

    783.0...Odometer
    783.4...GPS


    I'd say that is PRETTY ACCURATE...Huh??

    Surprised me!!

    Marauderjack
    No Marauder

  2. #2
    Mad4Macs Guest

    Talking

    Quote Originally Posted by Marauderjack View Post

    783.0...Odometer
    783.4...GPS

    Yeah, and if you use the GPS to calculate your mileage, your fuel economy goes up!

  3. #3
    Quote Originally Posted by Marauderjack View Post
    I have wondered how accurate my speedometer is with the 295's out back and "Rev's Per Mile" adjusted by DiabloSport so I "Zero'd" the trip odometer and my GPS Monday and my total miles as of yesterday are recorded as:

    783.0...Odometer
    783.4...GPS

    I'd say that is PRETTY ACCURATE...Huh??

    Surprised me!!

    Marauderjack
    COOL BEANS

  4. #4
    Join Date
    Oct 2003
    Location
    Beaufort, SC
    Posts
    7,719
    Yeppy!!

    Fuel Mileage Report:

    Odometer.....23.1 MPG
    GPS............23.100000000000 00000000000000000000000153

    Nice going there...Mad4Macs!!!

    Marauderjack
    Last edited by Marauderjack; 01-20-2007 at 05:21 AM.
    No Marauder

  5. #5
    Join Date
    Dec 2005
    Location
    Layton, UT
    Age
    43
    Posts
    4,328
    damn thats right on......

    Matt H.
    (sold)2004' SB, 268rwhp/295tq
    1990 Mustang GT, Dart 363, Si-trim, T56, Holley Terminator X. 622rwhp/527tq
    2003 SVT Cobra, Posi Port 497rwhp/481tq. SCT Pro Racer Pack.
    2017 F-150, 5.0
    2013 SHO DIB Performance Pack

  6. #6
    Join Date
    Dec 2002
    Location
    Long Island, NY
    Posts
    9,770
    Quote Originally Posted by Marauderjack View Post
    I have wondered how accurate my speedometer is with the 295's out back and "Rev's Per Mile" adjusted by DiabloSport so I "Zero'd" the trip odometer and my GPS Monday and my total miles as of yesterday are recorded as:

    783.0...Odometer
    783.4...GPS


    I'd say that is PRETTY ACCURATE...Huh??

    Surprised me!!

    Marauderjack


    Can't ask for more than that.
    2003 Marauder 300B,
    6468 out of 7839 - Thanks Brian
    Heated Seats
    35% Tint
    Mercury All Weather Mats
    Trunk Organizer - Thanks MartyO
    Sold 4/3/2009 Now resides in AL.
    1961 Pontiac Bonneville Convertible
    1973 Oldsmobile Toronado
    2012 Kia Sedona Van
    2008 Corvette Convertible
    2003 Marauder 300 A Thanks Larry O 6/14/17
    2021 Prius Prime Limited
    2023 Chevrolet Silverado High Country
    Member # 440
    ----- John

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