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Thread: Please critic my planned suspension upgrades

  1. #1
    Senior Member NIevo's Avatar
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    Default Please critic my planned suspension upgrades

    So I think I have narrowed down my upgrade plans for this winter. Mainly trying to do one area of the car at a time and do everything once while I have it torn apart anyways. Right now I am planning on doing coilovers this winter so I figured I would focus on the rear of the car for now. Let me know what you think of my plans and if there is anything I am missing or might want to consider adding. I am on a budget so a lot of the parts I went with non-adjustable versions if possible, I don't plan on doing any serious road or auto-x and most racing is straight line/drag.

    BC Racing Coilovers
    Whiteline Front Strut Mount Bushing
    Eibach Front Camber Bolts
    Spohn Adjustable Rear Toe Link w/Spherical Rod End
    Spohn Rear Trailing Arm w/Polyurethane Bushing
    BMR Rear Lower Control Arm
    BMR Rear Cradle Bushing Kit
    BMR Rear Differential Bushing Kit
    Camaro 3.27 Rear Differential

    Ok, so give me your opinions. Any parts that people have used and wished they had gone a different route? Main reason went with Spohn on a couple items is they were slightly cheaper and lighter weight. Also I do plan on upgrading the front suspension eventually but money won't allow right now. I'd rather get everything done on the rear at once.
    '03 Evo VIII 10.6@131mph stock internals/ECU/Tires-SOLD
    '09 GT SBM-Rotofab, SOLO HFC, SOLO Mach Balanced Catback Exhaust, Powerbond Underdrive Pulley, Custom Tune, HID Lows, LED Fogs, GXP Front Bumper & Rear Diffuser & CTS-V Rims

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    That all looks good. The only area you left out is the front control arms. All that and leaving the sloppy front control arms and bushings. It is one of the weakest points of our suspension. I would say drop the diff for now and do the control arms and add sway bars. Your suspension would be complete with no weak areas.
    '09 GT SRM Cortex tuner, Solo HFC, VCM Intake,Spohn Trailing Arms & Toe Links

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    yea i agree have you had the updated control arms done ?

  4. #4
    Senior Member NIevo's Avatar
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    Don't have the control arms yet. I am planning on doing the Spohn eventually. Only reason wanted to do the rear diff was the rear end was going to be torn apart anyways so I figured I might as well get it out of the way.
    '03 Evo VIII 10.6@131mph stock internals/ECU/Tires-SOLD
    '09 GT SBM-Rotofab, SOLO HFC, SOLO Mach Balanced Catback Exhaust, Powerbond Underdrive Pulley, Custom Tune, HID Lows, LED Fogs, GXP Front Bumper & Rear Diffuser & CTS-V Rims

  5. #5
    Beyond Help Napalm's Avatar
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    Quote Originally Posted by NIevo View Post
    So I think I have narrowed down my upgrade plans for this winter. Mainly trying to do one area of the car at a time and do everything once while I have it torn apart anyways. Right now I am planning on doing coilovers this winter so I figured I would focus on the rear of the car for now. Let me know what you think of my plans and if there is anything I am missing or might want to consider adding. I am on a budget so a lot of the parts I went with non-adjustable versions if possible, I don't plan on doing any serious road or auto-x and most racing is straight line/drag.

    BC Racing Coilovers
    Whiteline Front Strut Mount Bushing
    Eibach Front Camber Bolts
    Spohn Adjustable Rear Toe Link w/Spherical Rod End
    Spohn Rear Trailing Arm w/Polyurethane Bushing
    BMR Rear Lower Control Arm
    BMR Rear Cradle Bushing Kit
    BMR Rear Differential Bushing Kit
    Camaro 3.27 Rear Differential

    Ok, so give me your opinions. Any parts that people have used and wished they had gone a different route? Main reason went with Spohn on a couple items is they were slightly cheaper and lighter weight. Also I do plan on upgrading the front suspension eventually but money won't allow right now. I'd rather get everything done on the rear at once.
    If you are doing drag racing only. This I would say you're OK here.

    If you are doing back road carving, track racing etc. The Don't do the other arms and add in sways a front radius bush of some brand. so you balance out the handling of the car.

    Otherwise you are rear dominant, leading to potential oversteer issues. (not the fun, gas pedal induced kind either)

    Do you have other supporting mods? sticky or wider tires?
    If Guns Kill people, then Spoons Cause Diabetes

  6. #6
    Senior Member NIevo's Avatar
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    I understand that at this point the handling will be rear dominant, I just don't have the money to do everything at once and since the rear will be torn apart and there are more upgrades to it then the front I focused on it for now. Down the road I am planning on doing Spohn Front LCA's, front radius bushings and sways. I do have the CTS-V rims with 275's on the rear and plan on going with 285's when these wear down.
    '03 Evo VIII 10.6@131mph stock internals/ECU/Tires-SOLD
    '09 GT SBM-Rotofab, SOLO HFC, SOLO Mach Balanced Catback Exhaust, Powerbond Underdrive Pulley, Custom Tune, HID Lows, LED Fogs, GXP Front Bumper & Rear Diffuser & CTS-V Rims

  7. #7
    Beyond Help Napalm's Avatar
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    well then seems like you expect a few issues. Were the CTS-V rims crazy expensive?
    If Guns Kill people, then Spoons Cause Diabetes

  8. #8
    Senior Member NIevo's Avatar
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    Couldn't tell you, they were on the car when I bought it. I will say that there aren't to many aftermarket ones I would prefer over them though, from the looks all the way to the perfect offset.
    '03 Evo VIII 10.6@131mph stock internals/ECU/Tires-SOLD
    '09 GT SBM-Rotofab, SOLO HFC, SOLO Mach Balanced Catback Exhaust, Powerbond Underdrive Pulley, Custom Tune, HID Lows, LED Fogs, GXP Front Bumper & Rear Diffuser & CTS-V Rims

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    "Down the road I am planning on doing Spohn Front LCA's, front radius bushings and sways. " Just to make sure there is no confusion, you do the Spohn arms OR replace the stock radius arm bushings. Not both. The Spohn arms come with there own poly bushings.
    '09 GT SRM Cortex tuner, Solo HFC, VCM Intake,Spohn Trailing Arms & Toe Links

  10. #10
    Senior Member NIevo's Avatar
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    Thank you for letting me know, I hadn't really researched the front yet so I didn't realize that.
    '03 Evo VIII 10.6@131mph stock internals/ECU/Tires-SOLD
    '09 GT SBM-Rotofab, SOLO HFC, SOLO Mach Balanced Catback Exhaust, Powerbond Underdrive Pulley, Custom Tune, HID Lows, LED Fogs, GXP Front Bumper & Rear Diffuser & CTS-V Rims

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