Top Speed 150 ???
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2004-2007 Cadillac CTS-V General Discussion Discussion, Top Speed 150 ??? in Cadillac CTS-V Series Forum - 2004 - 2007; So I was on my way home from an eventful day with some great V owners. Decided to stop by ...
  1. #1
    SevillianSTS is offline Cadillac Owners Enthusiast
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    Top Speed 150 ???

    So I was on my way home from an eventful day with some great V owners.

    Decided to stop by my brother-in-laws house in "Mexico". there is a new section of road that was WIDE open straight and NO cars.

    I said no twice.. then I went for it...

    Don't remember everything being I was focused on the road but I wanna say I hit 140 in 4th then I missed 5th... got it into fifth and gained my speed back, but it seems like it just stopped pulling at 150ish. Do some of these cars have a top speed shut down ? Cause it felt like I should have had a little more, and I know they said it'll stop pulling at 163

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    darkman's Avatar
    darkman is offline Cadillac Owners Master
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    Re: Top Speed 150 ???

    I believe in 2006 and 2007 the Vs came with RSA runflat tires that had a lower speed rating that the F1 Supercars (also runflats) that came on the 2004-2005s. Consequently, the speed limiter is set lower than the 163 mph (or so) particular to the earlier models.

    A tuner can fix that, but you ought to have the tires to support that change.

  4. #3
    odthetruth's Avatar
    odthetruth is offline Moderator
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    Re: Top Speed 150 ???

    ^ That

    [2006 CTS-V - "The Vee Baby Seamus"] - 372rwhp / 361rwtq
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    mstrjon32 is offline Cadillac Owners Enthusiast
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    Re: Top Speed 150 ???

    I just flashed my ECU to remove the top speed limiter and the (stupid, irritating, MF-ing) CAGS yesterday. I don't know why I waited so long to do it, I've hit that speed limiter dozens of times, it's really annoying.

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    rand49er's Avatar
    rand49er is offline Cadillac Owners 10000+ Posts
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    Re: Top Speed 150 ???

    Quote Originally Posted by SevillianSTS View Post
    ... my brother-in-laws house in Dayton Mexico ...
    Fixed.
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

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    SevillianSTS is offline Cadillac Owners Enthusiast
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    Re: Top Speed 150 ???

    I don't recall it shutting down like a normal limiter though. No messages. Just felt like that was all she had. Is it a more "mild" shut-down ?

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    mstrjon32 is offline Cadillac Owners Enthusiast
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    Re: Top Speed 150 ???

    Quote Originally Posted by SevillianSTS View Post
    I don't recall it shutting down like a normal limiter though. No messages. Just felt like that was all she had. Is it a more "mild" shut-down ?
    It's not as mild as some cars that will flash a message (I think even the base CTS flashes a message...), but it's not abrupt like older cars to do a full, hard fuel cut-off. If you have an '06 or an '07, and the door sticker says it came with "V" rated tires, it has the 149 mph limiter.

  9. #8
    SevillianSTS is offline Cadillac Owners Enthusiast
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    Re: Top Speed 150 ???

    SOB, yep came with V rated tires.

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    CTSV_Rob's Avatar
    CTSV_Rob is offline Cadillac Owners 10000+ Posts
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    Re: Top Speed 150 ???

    My 07' V came factory with the FG2's and the F1 Supercars. I have never pushed it to the limit but I wonder if they put that limitation on my car even though I have the better tires??

    I have never taken it over 145.

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    darkman's Avatar
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    Re: Top Speed 150 ???

    Quote Originally Posted by CTSV_Rob View Post
    My 07' V came factory with the FG2's and the F1 Supercars. I have never pushed it to the limit but I wonder if they put that limitation on my car even though I have the better tires??

    I have never taken it over 145.
    I am not positive, but I suspect that any shop with a GMTechII scanner can check that for you. In the alternative, how close are you to Mexico?
    CTSV_Rob and CTSV_Rob like this.

  12. #11
    WarrenMRogers is offline Cadillac Owners Fanatic
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    Re: Top Speed 150 ???

    My '04 hits the 163 easily, stock.
    Bigtuna819 and Bigtuna819 like this.

  13. #12
    ForceTA308 is offline Cadillac Owners Member
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    Re: Top Speed 150 ???

    Quote Originally Posted by SevillianSTS View Post

    Don't remember everything being I was focused on the road but I wanna say I hit 140 in 4th then I missed 5th... 3
    You mean you missed 5th even with that good feelin shifter of yours!?

  14. #13
    SevillianSTS is offline Cadillac Owners Enthusiast
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    Re: Top Speed 150 ???

    Quote Originally Posted by ForceTA308 View Post
    You mean you missed 5th even with that good feelin shifter of yours!?
    Ha, ya I think I just pushed over too far towards reverse.

  15. #14
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    Re: Top Speed 150 ???

    Quote Originally Posted by SevillianSTS View Post
    Ha, ya I think I just pushed over too far towards reverse.
    LOL I realized that if you try to quick shift the 4-5, that can happen with little resistance. LOL best to take your time in the 4-5 shift, even if you're making a sandwich mid shift on the 4-5. All other gears you can shift in with little effort.

    [2006 CTS-V - "The Vee Baby Seamus"] - 372rwhp / 361rwtq
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  16. #15
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    Re: Top Speed 150 ???

    I had the limiter removed on my first tune, and have way better tires, but I just ran out of road when I hit 149 in 5th when we visited Mexico. I've read that 6th quits pulling, so is it a matter of running out of rpm maybe?

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