Top speed test M6 transmission. Found speedlimmiter
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 1 of 3 1 2 3 LastLast
Results 1 to 15 of 39
Like Tree8Likes
2009-2014 Cadillac CTS-V Performance Mods Discussion, Top speed test M6 transmission. Found speedlimmiter in Cadillac CTS-V Series Forum - 2009-2014; Found out that there is some kind of speed limmiter at 206 mph / 330km/h right around 5700rpm on 6 ...
  1. #1
    caddilac2 is offline Cadillac Owners Member
    Join Date
    May 2014
    Posts
    13

    Top speed test M6 transmission. Found speedlimmiter

    Found out that there is some kind of speed limmiter at 206 mph / 330km/h right around 5700rpm on 6 gear. I have 640 rwhp and ofcourse aftermarket tuning.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    DCV
    DCV is offline Cadillac Owners Enthusiast
    Automobile(s): 2009 CTSV bone stock
    Join Date
    Dec 2012
    Location
    Washington DC
    Age
    51
    Posts
    506

    Re: Top speed test M6 transmission. Found speedlimmiter

    Thats called drag.....

  4. #3
    baabootoo's Avatar
    baabootoo is offline Cadillac Owners Connoisseur
    Automobile(s): Blue/Titanium 2009 V Auto
    Join Date
    May 2010
    Location
    Racine, WI
    Posts
    3,393

    Re: Top speed test M6 transmission. Found speedlimmiter

    or friction........ I-10 in west Texas????????

  5. #4
    Club Malibu is offline Cadillac Owners Fanatic
    Automobile(s): 2010 CTS-V, White, Manual, Bone stock, no sun-roof
    Join Date
    Feb 2010
    Posts
    459

    Re: Top speed test M6 transmission. Found speedlimmiter

    I recall years ago that Renntech while tuning their super high horsepower Mercedes kept hitting hidden secret rev limiters in the software. Stock I think was around 150 mph, then then cracked that part of the software code then again about 170, then again at 200 and I think it was straight fuel cutoff at 212+. They did not know why. They thought it was just safeguards against people like them killing themselves.

    Maybe 206mph is the magic number where the V generates lift. Or parts start flying off the car.

  6. #5
    quikag is offline Cadillac Owners Fanatic
    Automobile(s): '12 White Diamond CTS-V Sedan, '10 Cyber Gray ZR1
    Join Date
    Dec 2005
    Location
    Dallas, TX
    Age
    37
    Posts
    265

    Re: Top speed test M6 transmission. Found speedlimmiter

    I call BS without pics or vid.

  7. #6
    CVP33's Avatar
    CVP33 is offline Cadillac Owners Master
    Automobile(s): '04V, '05V, '06SRT8, '10V sedan, '13ZL1 vert, '12 V coupe
    Join Date
    Feb 2004
    Location
    mockingbigjimsville, NC
    Age
    48
    Posts
    5,926

    Re: Top speed test M6 transmission. Found speedlimmiter

    Quote Originally Posted by quikag View Post
    I call BS without pics or vid.
    Or ride-along.....

  8. #7
    caddilac2 is offline Cadillac Owners Member
    Join Date
    May 2014
    Posts
    13
    Thread Starter

    Re: Top speed test M6 transmission. Found speedlimmiter

    Why would i lie about that? Its not that big of a deal to go 206 mpg with a big straight road without out cars and i am not from the US so thers is not cops everywhere.
    the blur likes this.

  9. #8
    Trapspeed's Avatar
    Trapspeed is online now Cadillac Owners Connoisseur
    Automobile(s): 2009 CTS-V
    Join Date
    May 2011
    Location
    Central Florida
    Posts
    2,590
    Quote Originally Posted by caddilac2
    Why would i lie about that? Its not that big of a deal to go 206 mpgwith a big straight road...
    See! We knew it was a lie! LOL

  10. #9
    spearfish25 is offline Cadillac Owners Enthusiast
    Automobile(s): 2013 CTS-V Wagon, Glacier Blue, Red Brembos, SB wheels
    Join Date
    May 2013
    Location
    Naples, FL
    Posts
    689

    Re: Top speed test M6 transmission. Found speedlimmiter

    640 rwhp in a V isn't getting you to 206mph unless you're shot out of a cannon.

  11. #10
    2013CTSV is offline Cadillac Owners Member
    Automobile(s): 2013CTSV
    Join Date
    May 2013
    Posts
    60
    Quote Originally Posted by spearfish25
    640 rwhp in a V isn't getting you to 206mph unless you're shot out of a cannon.
    I don't really agree, I've hit 170 in my car based on the speedo and the car was still pulling quite healthily. I'm at about 500-525 whp right now so it does not seem so far fetched.

  12. #11
    nsaness is offline Cadillac Owners Fanatic
    Automobile(s): CTS-V (Black 2014), CTS-V (Red obsession 2014)
    Join Date
    Nov 2009
    Location
    Northern NJ
    Posts
    267

    Re: Top speed test M6 transmission. Found speedlimmiter

    How was your windshield at that speed?
    With all windows closed, my windshield allows air to pass through at 165 to 175 mph (in Mexico, on a closed airstrip, of course). The wind noise is quite loud, and the windshield shakes and vibrates quite a bit. It did not inspire confidence for a 200 mph run, but maybe my car is the only one with this "problem"

  13. #12
    baabootoo's Avatar
    baabootoo is offline Cadillac Owners Connoisseur
    Automobile(s): Blue/Titanium 2009 V Auto
    Join Date
    May 2010
    Location
    Racine, WI
    Posts
    3,393

    Re: Top speed test M6 transmission. Found speedlimmiter

    Drag or friction...........
    Slizzo likes this.

  14. #13
    thebigjimsho's Avatar
    thebigjimsho is offline Cadillac Owners 10000+ Posts
    Automobile(s): ZIP
    Join Date
    Jun 2004
    Location
    In the barrel of a gun...
    Posts
    49,670
    I think people underestimate how much power it takes to up your top speed when nearing the 200mph barrier.

    If 191mph is the top end for an M6 V, I'm guessing you need at least 100 more hp to even think of nearing 200. Probably another 100 to go over and get in the low 00s over 200.

    ----------

    Especially with the high resistance the V's frontal area presents...

  15. #14
    wait4me's Avatar
    wait4me is offline Cadillac Owners Connoisseur
    Automobile(s): 11v,2 09 v's,2 05 v's,5 GTM supercars,viper,volt,2012 karma
    Join Date
    Jan 2009
    Location
    warsaw indiana
    Posts
    2,998

    Re: Top speed test M6 transmission. Found speedlimmiter

    On the chassis dyno you can go past 220 mph with 3.42 gears. Your tuner didn't shut off something if there is a limiter at that mph.

    Send the tune over and I will delete the limiter.

  16. #15
    vfaninva's Avatar
    vfaninva is offline Cadillac Owners Connoisseur
    Automobile(s): Prev '09 V sedan, Current 2013 Thunder Gray V Coupe
    Join Date
    Dec 2012
    Location
    Virginia Beach, VA
    Age
    50
    Posts
    2,163
    The faster you go the more the earths atmosphere resists.
    The Bugatti Veyron (one of the most slippery cars in the world) "needs" 1,200 HP and 1,106 foot lbs of torque to reach 253 mph.
    There's only one guy I know of on this forum to reach/exceed 200 mph in a V. I wonder what HP it took to get there.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting