How fast will my truck run?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by JSmitty, Mar 30, 2009.

  1. JSmitty

    JSmitty Light Load Member

    288
    52
    Feb 22, 2009
    Midland Tx
    0
    lol, yeah, I'll admit, it doesn't pull worth a crap
     
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  3. PappyGT13

    PappyGT13 Light Load Member

    138
    142
    Nov 2, 2006
    Port Aransas,Texas
    0
    70 mph = 1400 rpm -hi gear is 10 mph per 200 rpm. 80 =1600 , 90=1800 , 100=2000 , 105 =2100 . This works, drove a truck for years with no speedo. Can be verified by radar signs 50= 1000 rpm , 45=900 ,etc.:biggrin_25525:

    Course the real question is can you pull 2100 in high gear? :biggrin_25511:

    It's really hard to push that much AIR!:yes2557:
     
  4. JSmitty

    JSmitty Light Load Member

    288
    52
    Feb 22, 2009
    Midland Tx
    0
    My truck prior to this was a 2004 Pete 379, and it would get on up to 2150 with no problems. It had alot lower gear ratio though. I think it had like 370's or so.
     
  5. kalh7

    kalh7 Light Load Member

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    62
    Mar 28, 2007
    southern illinois
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    mine shuts off at 104 or 107 at 2100, cant remember. difference between the two is i have a 13 speed and 3.36 gears.
     
  6. Sportster2000

    Sportster2000 Road Train Member

    1,480
    885
    Jan 5, 2008
    Indiana
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    If it is a 07 or newer paccar product you can go to the information display srceen and under powertrain info you can see what the speed limiter is set at. The last truck I drove it was set at 94mph, but then again I have no need to go that fast.
     
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