LS6 vs. LS2...Yes, I did a search. - Page 2
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 2 of 4 FirstFirst 1 2 3 4 LastLast
Results 16 to 30 of 60
2004-2007 Cadillac CTS-V Performance Mods Discussion, LS6 vs. LS2...Yes, I did a search. in Cadillac CTS-V Series Forum - 2004 - 2007; they wont pull any differently. stock LS6 output 400/405 stock LS2 output 405/410 5 horsepower can be overcome by the ...
  1. #16
    CTS-Voodoo's Avatar
    CTS-Voodoo is offline Cadillac Owners Enthusiast
    Automobile(s): 05 Raven V
    Join Date
    Oct 2008
    Location
    AutoRepairSEO.com
    Posts
    951

    Re: LS6 vs. LS2...Yes, I did a search.

    they wont pull any differently.

    stock LS6 output 400/405
    stock LS2 output 405/410

    5 horsepower can be overcome by the wind.

  2. #17
    deedubb's Avatar
    deedubb is offline Cadillac Owners Connoisseur
    Automobile(s): E85 Powered - Maggie'd V
    Join Date
    Feb 2005
    Location
    Mile High
    Age
    34
    Posts
    1,771

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by CTS-Voodoo View Post
    they wont pull any differently.

    stock LS6 output 400/405
    stock LS2 output 405/410

    5 horsepower can be overcome by the wind.
    Or a big breakfast!

  3. #18
    ctsv154's Avatar
    ctsv154 is offline Cadillac Owners Connoisseur
    Automobile(s): 04 CTS-V with a little hp persuasion device
    Join Date
    Oct 2007
    Age
    29
    Posts
    4,158

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by Tom400CFI View Post
    Thanks for the good replies. I should have been more clear. I know all of the technical differences both for the car and the engine itself; I've had a C6/LS2 for the last 3-1/2 years.

    What I was wondering, is which engine, in this virtually same chassis, has produced the best ET and TRAP results, bone stock?

    Once you change blocks, heads, cams, add blowers, etc....it's not really an "LS6" or an "LS2" anymore. I'm talking stock for stock, same platform. See? In the 'Vettes, the LS6/LS2 debate was always plagued by the fact that the two motors were never in the same chassis.

    Well the problem is neither LS6 or the LS2 can be pushed at the track because the rear end. I personaly dont think you would see much differance even if you could do a 6k drag radialed launch. The fact is the rear end in this car keeps people from seeing its true potental.

  4. #19
    bpitas's Avatar
    bpitas is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac CTS-V
    Join Date
    May 2007
    Location
    Winchester, MA
    Age
    44
    Posts
    389

    Re: LS6 vs. LS2...Yes, I did a search.

    If all you're interested are the dragstrip times of the two motors (since the chassis is the same) go over to dragtimes.com (http://www.dragtimes.com/Cadillac--C...ag-Racing.html) and go through each of them and check if they are stock or not.
    Like everyone else said, though, it's hard to tell how fast it really is because the rear-end hops so bad.

  5. #20
    AAIIIC's Avatar
    AAIIIC is online now Moderator
    Automobile(s): '05 CTS-V
    Join Date
    Aug 2007
    Location
    Where the Navy takes me...
    Posts
    3,559

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by CTS-Voodoo View Post
    they wont pull any differently.

    stock LS6 output 400/405
    stock LS2 output 405/410
    AFAIK they were both rated the same from the factory - 400hp and 395ft-lb. Not sure where your numbers are coming from, and maybe the numbers I'm finding online now aren't correct. The one difference is that the LS6's peak torque was 4800rpm, while the LS2's was 4400rpm - there's that extra displacement letting the LS2 make the same torque earlier in the RPM band.

  6. #21
    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
    49,300

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by deedubb View Post
    Or a big breakfast!
    Or a blocked colon!

  7. #22
    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
    49,300

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by Tom400CFI View Post
    Thanks for the good replies. I should have been more clear. I know all of the technical differences both for the car and the engine itself; I've had a C6/LS2 for the last 3-1/2 years.

    What I was wondering, is which engine, in this virtually same chassis, has produced the best ET and TRAP results, bone stock?

    Once you change blocks, heads, cams, add blowers, etc....it's not really an "LS6" or an "LS2" anymore. I'm talking stock for stock, same platform. See? In the 'Vettes, the LS6/LS2 debate was always plagued by the fact that the two motors were never in the same chassis.
    Neither. If there were any difference, it would be so miniscule, it wouldn't matter.

  8. #23
    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
    49,300

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by JimmyH View Post
    i love the hard pull to redline that the LS6 gives you.

    but admittedly, the LS2 is probably the better engine. particularly in everyday driving. where (whether we want to admit it or not) is where the CTS-V spends most of its time.
    Do you drive some sort of one-off automatic V? Shift...

  9. #24
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
    Location
    Spring, Texas
    Posts
    7,008

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by thebigjimsho View Post
    Or a blocked colon!
    Thank you for sharing that thought.

  10. #25
    JimmyH is offline Cadillac Owners 10000+ Posts
    Join Date
    Dec 2006
    Age
    39
    Posts
    37,475

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by thebigjimsho View Post
    Do you drive some sort of one-off automatic V? Shift...
    yes...my left leg and right arm

  11. #26
    VfReaK is offline Banned
    Automobile(s): CTS-V
    Join Date
    Aug 2009
    Posts
    26

    Re: LS6 vs. LS2...Yes, I did a search.

    one can not dispute bigger is ALWAYS better.

    Bigger gun, Bigger dong, Bigger house, Bigger wallet, Bigger t*ts,
    now that that's cleared up,... it's clear you need a... BIGGER MOTOR!

    go BIG, or go home.

  12. #27
    ctsv154's Avatar
    ctsv154 is offline Cadillac Owners Connoisseur
    Automobile(s): 04 CTS-V with a little hp persuasion device
    Join Date
    Oct 2007
    Age
    29
    Posts
    4,158

    Re: LS6 vs. LS2...Yes, I did a search.

    The bigger they are, the harder they fall!

  13. #28
    madmaro00 is offline Cadillac Owners Member
    Automobile(s): 2005 CTS-V
    Join Date
    Jun 2009
    Posts
    15

    Re: LS6 vs. LS2...Yes, I did a search.

    For me it was the exclusivity of the LS6, be that as it may, more cubes never hurt anybody. Both are awesome motors with tons of potential, where as our rear ends are another story.

  14. #29
    CTS-Voodoo's Avatar
    CTS-Voodoo is offline Cadillac Owners Enthusiast
    Automobile(s): 05 Raven V
    Join Date
    Oct 2008
    Location
    AutoRepairSEO.com
    Posts
    951

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by AAIIIC View Post
    AFAIK they were both rated the same from the factory - 400hp and 395ft-lb. Not sure where your numbers are coming from, and maybe the numbers I'm finding online now aren't correct. The one difference is that the LS6's peak torque was 4800rpm, while the LS2's was 4400rpm - there's that extra displacement letting the LS2 make the same torque earlier in the RPM band.
    Every dynoed LS engine Ive ever seen has made more at the crank than the factory ratings stock. Perhaps GM wanted to ensure no false claims were made on its engines.

  15. #30
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
    Location
    Spring, Texas
    Posts
    7,008

    Re: LS6 vs. LS2...Yes, I did a search.

    Quote Originally Posted by CTS-Voodoo View Post
    Every dynoed LS engine Ive ever seen has made more at the crank than the factory ratings stock. Perhaps GM wanted to ensure no false claims were made on its engines.
    This suggests that our drive line loss percentage, which we've always considered to be awful. is even worse than we thought.

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