1. dnciii

    dnciii New LVC Member

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    Joined:
    Oct 30, 2006
    Location:
    Capitol Heights
    I recently pushed my 99' STS to 120mph, then pulled backed. Has anyone reached their top speed yet?
     
  2. CadillacETC1997

    CadillacETC1997 Well-Known LVC Member

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    Oct 14, 2005
    Location:
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    it all depends on factory tires
    z/w (mines a z) 150 or no gov
    h 135
    s 112
     
  3. MediumD

    MediumD Dedicated LVC Member

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    What he said. My 95 ETC z-rated did 153 indicated.
     
  4. Rogerio

    Rogerio New LVC Member

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    Location:
    Toronto, Ontario
    Late year, when we were coming home from holidays in Florida. My 2000 STS was riding fully loaded, 4 persons, trunk so full that you had to push it shut and a large sports gap riding in the 5th seat. I calculate that the Caddy was weighing in at approx. 6500 lbs. On I75 we came upon a Mustang that wasn't letting anyone pass it. I suspect that it thought that it couldn't be out run. Wrong! The Caddy passed him at around 126 mph. By the time I got off the gas the STS was on its way from 135 to 140 mph and the engine was turning just under 5000 rpm. My STS was still accellerating when I let up on her. It was the wife (in the back seat) saying "do you want to STOP THIS %$#^%$%%$# STUPIDITY" that prevented me from actually finding out just how fast her could go.
     
  5. william hulbert

    william hulbert LVC Member

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    Jan 3, 2009
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    swanton
    155 mph for sts sls 112 devills 112 except dts yrs 2000 2005 130 or 155 not sure i havent brought mine up to that speed yet
     
  6. MasterMarkViii

    MasterMarkViii LVC Member

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    Jan 22, 2009
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    Orlando/Kissimmee
    Theres no car thats y2k + that allows you to go over 120, as far as i know unless you have a tune you cant reach those speeds, or are all of you on factory tune?
     
  7. samuelsteven

    samuelsteven Active LVC Member

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    May 10, 2005
    Location:
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    Smooth 135mph in my 1998 STS Factory
     
  8. 1997 STS TX

    1997 STS TX New LVC Member

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    Jun 4, 2012
    Location:
    always H-town but 4now killeen
    First Drive

    97 sts one of the best machines known 2man but dont think peep should test the dash its accurate did 130 when I test drove to make sure it was ready and made it seem like I was only doing 40 rides like a champ 130 smooth is a nice ride.
     

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