Summary table of swaybar options
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2004-2007 Cadillac CTS-V Performance Mods Discussion, Summary table of swaybar options in Cadillac CTS-V Series Forum - 2004 - 2007; I originally put this over on the CTS forum, as I was trying to find out what the base and ...
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    AAIIIC's Avatar
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    Summary table of swaybar options

    I originally put this over on the CTS forum, as I was trying to find out what the base and Sport CTS swaybar diameters were. I ended up getting the measurements myself from a couple of cars that were at Lindsay when I was there with my car. Still not positive on the CTS diameters - it would be interesting to check the parts database to see if there are different part numbers for front and rear on the base and Sport models. Just seems strange that they would "upgrade" by only 1mm, but that's what the vernier caliper said.

    The Hotchkis and Addco bars are advertised in inch units, while the GMPP and Eibach bars are advertised in millimeters, so I converted them all to make them easier to compare.

    . . . . . . . . . . . . . . . . . Diam. (in). . . Diam.(mm) . . . Construction . . Comments
    Hotchkis CTS-V front . .. 1-1/4 . . . . .. 31.75 . . . . . . . tubular .. . . . . Sold as front/rear kit (2280)
    Hotchkis CTS-V rear . . . 1 . . . . . . .. . 25.40 . . . . . . . ?


    Hotchkis CTS front . . . . 1-3/16 . . . . . 30.16 . . . . . . . tubular .. . . . . Sold as front/rear kit (2279)
    Hotchkis CTS rear . .. . . 13/16 . . . .. . 20.64 . . . . . . . ?


    Addco CTS-V front . . .. 1-3/8 . . . . . . 33.66 . . . . . . . solid . . . . . . . 2290
    Addco CTS-V rear . . . . 1 . . . . . . . . . 25.40 . . . . . . . solid . . . . . . . 2289


    Addco CTS front . . . . . 1-1/8 . . . . . . 28.58 . . . . . . . solid . . . . . . . 2200
    Addco CTS rear . . . .. . 7/8 . . . . . .. . 22.23 . . . . . . . solid . . . . . . . 2201


    Eibach front . . . . . . . . 1.10 . . . . .. . 28.00 . . . . . . . tubular . . . . . Sold as front/rear kit (3878.320) or individually (3878.310 front, 3878.312 rear)
    Eibach rear . . . .. . . . . 0.87 . . . . .. . 22.00 . . . . . . . tubular


    GMPP front . . . . . . . . . 1.38 . . . . .. . 35.00 . . . . . . . hollow . . . . . . No longer available
    GMPP rear . . . .. . . . . . 0.94 . . . . .. . 24.00 . . . . . . . solid


    Stock CTS-V front . . . . 1.04 . . . . .. . 26.50 . . . . . . . tubular (?)
    Stock CTS-V rear . . .. . 0.83 . . . . .. . 21.00 . . . . . . . solid (?)


    Base CTS front . . . . . . 0.91 . . . . .. . 23.00 . . . . . . . tubular (?)
    Base CTS rear . . . .. . . 0.63 . . . . .. . 16.00 . . . . . . . (?)


    Sport CTS front . . .. . . 0.91 . . . . .. . 23.00 . . . . . . . tubular (?)
    Sport CTS rear . . . . . . 0.63 . . . . .. . 16.00 . . . . . . . (?)
    '05 Stealth Grey CTS-V, Hyper Silver Linea Corse Venetos w/Continental ExtremeContact DWs (summer), black Team Dynamics ProRace 1.2 wheels with 275/35-18 R-compounds (track), Hyperblack Rota Torques (winter), KW Variant3s, V2 front brakes, Hotchkis rear sway bar, EPS cam, TEA-ported 243 heads, FAST92 intake w/LS2 TB, JBA Camaro/G8 1-3/4" shorty headers w/JBA cat pipes, Corsa exhaust, UUC motor and tranny mounts, UUC shifter, MAPerformance trailing arms, Specter cradle bushings, etc...

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    crankedupforit's Avatar
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    Re: Summary table of swaybar options

    I have the GMPP bars and the front one is a beast. It eats a set of links every year. Your data confirms why. Nice post.

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    Re: Summary table of swaybar options

    gah! Thanks for reminding me that mod hell never ends!

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    maxspeed96ct is offline Cadillac Owners Connoisseur
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    Re: Summary table of swaybar options

    Quote Originally Posted by CTS-Voodoo View Post
    gah! Thanks for reminding me that mod hell never ends!
    lol how true is that

    Good info O.P.

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    Re: Summary table of swaybar options

    If the swaybar end appears to be 2 pieces pinched together, then it's probably tubular. I can take a look at mine in the shed. I'll wager that most rear swaybars are solid construction.

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    VfastCaddy is offline Cadillac Owners Member
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    Re: Summary table of swaybar options

    I tried to order the big ADDCO a few months ago. No dice. They said they were no longer in production.

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    Re: Summary table of swaybar options

    Interesting. Did you talk to Addco directly? I noticed they're always listed with a significant shipping delay on summitracing.com, but I just figured that meant they were basically made to order (since there's not enough demand to keep them on the shelves).

    I installed the Hotchkis bars a couple weeks ago, but may reinstall my stock front bar, as the handling balance isn't where I want it to be.
    '05 Stealth Grey CTS-V, Hyper Silver Linea Corse Venetos w/Continental ExtremeContact DWs (summer), black Team Dynamics ProRace 1.2 wheels with 275/35-18 R-compounds (track), Hyperblack Rota Torques (winter), KW Variant3s, V2 front brakes, Hotchkis rear sway bar, EPS cam, TEA-ported 243 heads, FAST92 intake w/LS2 TB, JBA Camaro/G8 1-3/4" shorty headers w/JBA cat pipes, Corsa exhaust, UUC motor and tranny mounts, UUC shifter, MAPerformance trailing arms, Specter cradle bushings, etc...

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    Re: Summary table of swaybar options

    Time for the dumb question of the day.

    Bit off topic, but just how does the swaybar work??? The reason I ask is because the end links are so flimsy. I had one come apart in my hands.
    '05 Platinum l LPE CAI l Magnaflow l V1 (hardwired), w/ custom mount l UUC shifter l UUC Alcantara shift knob l K9 GEAR rear seat cover lHID fogs lHotchkis sways lCG-Lock l Specter Bushings l FG2s l Ground control 550/600 l MAGGIE 439RWHP/414RWTQ (Dynojet) l Heavys fire extinguisher bracket l Interceptor scan-gauge l Billet pedals l Meth l NO HEADERS l Original diff l 90mm upgrade l 2.6" drive pulley l LS7 clutch w/16lb. FW l Alcantara

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    Re: Summary table of swaybar options

    Anyone have info about the Eibach sways.
    I read somewhere that the Katech V had them.
    Just wondering of anyone had some experience with em...

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    Re: Summary table of swaybar options

    Quote Originally Posted by Twitch View Post
    Time for the dumb question of the day.

    Bit off topic, but just how does the swaybar work??? The reason I ask is because the end links are so flimsy. I had one come apart in my hands.
    Since, the swaybar aka torsion bar is mounted to the suspension, the suspension is actually moving in the opposite direction as the chassis.
    So, if the chassis dips down from a hard turn on one side of the vehicle, then the suspension is actually moving up and of course, the opposite occurs on the other side, when the chassis is moving up, the suspension is actually dropping down. The horizontal bar transmitts an opposing force to the other side, but because it is attached to vertical links, the links receive the brunt of the force being transmitted.
    The bigger the bar, the more force transmitted, but the stiffer the ride.
    From here, you get into understeer vs oversteer and how much force needs to be generated by way of front bar vs rear bar vs spring rate, vehicle weight, FWD or RWD. It's over my head.

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    Re: Summary table of swaybar options

    Quote Originally Posted by AAIIIC View Post
    Interesting. Did you talk to Addco directly? I noticed they're always listed with a significant shipping delay on summitracing.com, but I just figured that meant they were basically made to order (since there's not enough demand to keep them on the shelves).

    I installed the Hotchkis bars a couple weeks ago, but may reinstall my stock front bar, as the handling balance isn't where I want it to be.
    Yep, that amount of difference should get you out of a push state. But you can let us know how much.

    If it does work well, then I guess endlink makers may be out of business...

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    Re: Summary table of swaybar options

    Quote Originally Posted by AAIIIC View Post
    I originally put this over on the CTS forum, as I was trying to find out what the base and Sport CTS swaybar diameters were. I ended up getting the measurements myself from a couple of cars that were at Lindsay when I was there with my car. Still not positive on the CTS diameters - it would be interesting to check the parts database to see if there are different part numbers for front and rear on the base and Sport models. Just seems strange that they would "upgrade" by only 1mm, but that's what the vernier caliper said.

    The Hotchkis and Addco bars are advertised in inch units, while the GMPP and Eibach bars are advertised in millimeters, so I converted them all to make them easier to compare.

    . . . . . . . . . . . . . . . . . Diam. (in). . . Diam.(mm) . . . Construction . . Comments
    Hotchkis CTS-V front . .. 1-1/4 . . . . .. 31.75 . . . . . . . tubular .. . . . . Sold as front/rear kit (2280)
    Hotchkis CTS-V rear . . . 1 . . . . . . .. . 25.40 . . . . . . . ?


    Hotchkis CTS front . . . . 1-3/16 . . . . . 30.16 . . . . . . . tubular .. . . . . Sold as front/rear kit (2279)
    Hotchkis CTS rear . .. . . 13/16 . . . .. . 20.64 . . . . . . . ?


    Addco CTS-V front . . .. 1-3/8 . . . . . . 33.66 . . . . . . . solid . . . . . . . 2290
    Addco CTS-V rear . . . . 1 . . . . . . . . . 25.40 . . . . . . . solid . . . . . . . 2289


    Addco CTS front . . . . . 1-1/8 . . . . . . 28.58 . . . . . . . solid . . . . . . . 2200
    Addco CTS rear . . . .. . 7/8 . . . . . .. . 22.23 . . . . . . . solid . . . . . . . 2201


    Eibach front . . . . . . . . 1.10 . . . . .. . 28.00 . . . . . . . tubular . . . . . Sold as front/rear kit (3878.320) or individually (3878.310 front, 3878.312 rear)
    Eibach rear . . . .. . . . . 0.87 . . . . .. . 22.00 . . . . . . . tubular


    GMPP front . . . . . . . . . 1.38 . . . . .. . 35.00 . . . . . . . hollow . . . . . . No longer available
    GMPP rear . . . .. . . . . . 0.94 . . . . .. . 24.00 . . . . . . . solid


    Stock CTS-V front . . . . 1.04 . . . . .. . 26.50 . . . . . . . tubular (?)
    Stock CTS-V rear . . .. . 0.83 . . . . .. . 21.00 . . . . . . . solid (?)


    Base CTS front . . . . . . 0.91 . . . . .. . 23.00 . . . . . . . tubular (?)
    Base CTS rear . . . .. . . 0.63 . . . . .. . 16.00 . . . . . . . (?)


    Sport CTS front . . .. . . 0.91 . . . . .. . 23.00 . . . . . . . tubular (?)
    Sport CTS rear . . . . . . 0.63 . . . . .. . 16.00 . . . . . . . (?)

    Resurrected this thread since I've been thinking about going back to a stock sway bar setup with my KWs. Interesting that the GMPP bars have a huge disparity in the front to rear diameter over the other options. About 46% larger in the front than back. Probably the most popular option is the Hotchkiss which is only a difference of 25%. The stockers are about 26%. The Addcos 32.5% and the Eibachs 27%.
    Strange that you would think the GM bars would induce lot's of under steer since the front tires may saturate so much quicker (faster weight transfer) than the rears. Do the GM engineers know something we don't. I rode these GM bars for 2 years and really couldn't find anything unusual about them. Some low speed push but nothing much more than stock. I really liked them. Just strange that these bars have an entirely different balance front to rear than the others. Come to think of it the GMPP rear was adjustable and could be stiffened up. Just seems weird the GM racing guys went this route.

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    Re: Summary table of swaybar options

    Quote Originally Posted by AAIIIC View Post
    I installed the Hotchkis bars a couple weeks ago, but may reinstall my stock front bar, as the handling balance isn't where I want it to be.
    I've mentioned this in various other threads, but just to update this one, too, I did end up going back to my stock front sway bar and was happy with the change. I didn't notice any real difference in handling balance in high speed corners (like the climbing esses at VIR, where I'm doing ~110mph), but in the slower corners (like 5-6-7-8 at Summit Point Main) the car didn't want to plow as much and definitely seemed more willing to tuck the nose in if I needed to tighten the line mid-corner.
    thebigjimsho and thebigjimsho like this.

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    Re: Summary table of swaybar options

    And the difference between your Hotchkiss rear and the stock front is less than 5% (plus your running and extra 1kg spring in the rear). A pretty sharp contrast to the GM setup of 46%. With the inboard rear springs, the wheel rate is lower than the front anyway so you probably would need to do something really radical to get the car to have terminal oversteer. If I had to guess, the KWs are a game changer. In any case, my sense is you just have to get out there and see what works much like you did. I'm going with the front stock bar first and maybe mess with the rear shock setting to see if that dials in things since I still get some low speed push.

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    Re: Summary table of swaybar options

    I gotta say with the GM bars installed @ Summit, the instructor, on more than 1 occasion said the car felt planted and balanced.
    Too bad this thread didn't pop up a few days earlier, I would have asked Andy Pilgrim the reasoning behind the sizing. His eyes did light up a little when I told him I had a set on my car. He said to just go buy an extra set of wheels and to put Hoosier A6's on...
    2005 cadillac cts-v.r #83 nasa st3 . 2011 escalade esv . 2011 sierra denali

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