Has anyone ever ... [Aerodynamics w/ rear windows open]
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
Results 1 to 13 of 13
Cadillac SRX Second Generation Forum - 2010+ Discussion, Has anyone ever ... [Aerodynamics w/ rear windows open] in Cadillac SRX Forums; Has anyone ever lowered just the rear windows of their SRX while cruising at highway speeds? The aerodynamics are so ...
  1. #1
    doyall is offline Cadillac Owners Member
    Join Date
    Aug 2011
    Posts
    33

    Has anyone ever ... [Aerodynamics w/ rear windows open]

    Has anyone ever lowered just the rear windows of their SRX while cruising at highway speeds? The aerodynamics are so upset that it makes the entire car vibrate. Never had anything like that happen with an automobile before.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    MacMuse's Avatar
    MacMuse is offline Moderator
    Automobile(s): 2006 STS N* 1SE
    Join Date
    Feb 2009
    Location
    Chicagoland
    Age
    52
    Posts
    2,400

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    If you're looking for good external air flow, try this. Lower the two passenger side windows less than 2 inches each, leave the drivers sides up. In most vehicles this creates a vortex of flowing air that feels great with minimal outside noise or aero impact.

  4. #3
    TheCaptain's Avatar
    TheCaptain is offline Canadian SRX Mod
    Automobile(s): 14 ATS AWD 3.6L Performance - Phantom Grey Metallic
    Join Date
    Aug 2009
    Location
    Moosomin Saskatchewan
    Age
    28
    Posts
    2,885

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    My question is, why do people lower windows when driving? That's what we have HVAC systems for!
    I just like all the glass!
    When you turn your car on, does it return the favour? '14 Cadillac ATS Performance 3.6L AWD in Phantom Grey Metallic and Morello Red Interior


    **Cadillac Owners Forum RULES & Guidelines**

    *Cadillac CANADA Online Manuals***Cadillac USA Online Manuals & Guides*

  5. #4
    stevec5375's Avatar
    stevec5375 is offline Cadillac Owners Connoisseur
    Automobile(s): 2010 SRX/3.0L Premium/FWD/Platinum Ice/Shale
    Join Date
    Jan 2010
    Location
    Austin, TX, USA
    Posts
    1,658

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    If the windows weren't available for lowering, then there wouldn't be buttons that do that function. In some climates, it's "cheaper" to lower the windows and take in the cool air than to have to run the HVAC.

    And while I'm on this thread, just let me add..... Could you please come up with a better subject line? I find myself often ignoring posts with subject lines such as this. It's as though you're asking us to guess what your topic is about. It makes it harder to search. Thank you.

  6. #5
    TheCaptain's Avatar
    TheCaptain is offline Canadian SRX Mod
    Automobile(s): 14 ATS AWD 3.6L Performance - Phantom Grey Metallic
    Join Date
    Aug 2009
    Location
    Moosomin Saskatchewan
    Age
    28
    Posts
    2,885

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    Well, windows do need to be lowered at times, I know that steve.

    Besides, with all the advancements in tech, the compressor drag on most engines nowadays in barely worth pondering the efficiencies. (the GM guys at the V Lab told us in the 2% margin for most GM engines.)
    When you turn your car on, does it return the favour? '14 Cadillac ATS Performance 3.6L AWD in Phantom Grey Metallic and Morello Red Interior


    **Cadillac Owners Forum RULES & Guidelines**

    *Cadillac CANADA Online Manuals***Cadillac USA Online Manuals & Guides*

  7. #6
    doyall is offline Cadillac Owners Member
    Join Date
    Aug 2011
    Posts
    33
    Thread Starter

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    Quote Originally Posted by stevec5375 View Post
    ... Could you please come up with a better subject line? ...
    Done.

    ----------

    Quote Originally Posted by TheCaptain View Post
    My question is, why do people lower windows when driving? ...
    Well, if you fart it comes in handy unless, of course, yours don't stink.

  8. #7
    GMJim's Avatar
    GMJim is offline Cadillac Owners Connoisseur
    Automobile(s): 04,06,10 SRX; 2011/14 CTS Wagon
    Join Date
    Oct 2005
    Location
    GM Product Development
    Posts
    1,794

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    It better than opening a thread and seeing the word test in the first post.................

  9. #8
    Marc NY's Avatar
    Marc NY is offline Cadillac Owners Connoisseur
    Automobile(s): SRX 2013 Performance Flannel Gray w/ 20" Polished Wheels
    Join Date
    Jul 2010
    Location
    Western NY
    Posts
    1,077

    Re: Aerodynamics w/ rear windows open

    Quote Originally Posted by doyall View Post
    Has anyone ever lowered just the rear windows of their SRX while cruising at highway speeds? The aerodynamics are so upset that it makes the entire car vibrate. Never had anything like that happen with an automobile before.
    Actually that issue is more common then you would think. I have been in numerous vehicles that have done the same thing ... the noise or buffeting levels will vary depending on which windows you lower and how far you lower your window(s).

    When I am in my SRX I do not lower my windows when I am cruising at highway speeds. I like to keep my environment quiet and pollution free as possible especially at those higher speeds. Unless someone farts... then I might roll their window all the way down.

  10. #9
    doyall is offline Cadillac Owners Member
    Join Date
    Aug 2011
    Posts
    33
    Thread Starter

    re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    [QUOTE=doyall;2817159]Done.[COLOR="Silver"]

    ----------

    It didn't show up on the main heading. Maybe the mods can fix it.

  11. #10
    MacMuse's Avatar
    MacMuse is offline Moderator
    Automobile(s): 2006 STS N* 1SE
    Join Date
    Feb 2009
    Location
    Chicagoland
    Age
    52
    Posts
    2,400

    Re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    Fixed.

    And to stay on topic... while I have heard that today's compressors + aerodynamic bodies results in better gas mileage with AC on compared to windows down, I still like to dump the cabin air when I can refill with locally scented air - freshly mown field hay, pine forests, seashore, turkey farm... err, scratch that last one.

  12. #11
    zinner's Avatar
    zinner is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS-V / 2010 SRX 2.8T
    Join Date
    Oct 2005
    Posts
    292

    Re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    I believe it, buffeting can get pretty bad. I usually crack a window when I have the sun roof open. Keeps the buffeting down in that case as well.

    I am sure it has to do with all the aerodynamics and trade off we make for better fuel mileage.

  13. #12
    TheCaptain's Avatar
    TheCaptain is offline Canadian SRX Mod
    Automobile(s): 14 ATS AWD 3.6L Performance - Phantom Grey Metallic
    Join Date
    Aug 2009
    Location
    Moosomin Saskatchewan
    Age
    28
    Posts
    2,885

    Re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    Quote Originally Posted by doyall View Post
    ...
    Well, if you fart it comes in handy unless, of course, yours don't stink.
    lol, tis true. One window open a few cm is enough to suffice though.
    When you turn your car on, does it return the favour? '14 Cadillac ATS Performance 3.6L AWD in Phantom Grey Metallic and Morello Red Interior


    **Cadillac Owners Forum RULES & Guidelines**

    *Cadillac CANADA Online Manuals***Cadillac USA Online Manuals & Guides*

  14. #13
    PJ1520 is offline Cadillac Owners Connoisseur
    Automobile(s): 2007 SRX4 N*, 2004 Infinity G35 Coupe
    Join Date
    Feb 2010
    Location
    New England
    Posts
    2,005

    Re: Has anyone ever ... [Aerodynamics w/ rear windows open]

    Sounds like you guys don't ride much with your dogs or grandchildren in the car. Trust me when I say that they have no qualms about changing the ambience in the cabin when they have gas, an ambience which no HVAC system or the essence of the leather can overcome. And from a relationship standpoint, I never blame the wife or argue with her when she blames me.

    On topic, wide open windows and/or the open sunroof really create a significant aerodynamic drag!!!! My bet is that the vehicle is more fuel efficient with the HVAC system on and the windows and sunroof closed tight.

    PJ

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