Leveling a 308's suspension? | FerrariChat

Leveling a 308's suspension?

Discussion in 'Technical Q&A' started by bearduke1, Jan 20, 2005.

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  1. bearduke1

    bearduke1 Rookie

    Oct 19, 2004
    26
    South Carolina
    Full Name:
    Bubba Joe
    My 30K mile '82 308 GTSI consistently sits about a 1/2" low on the driver side (both front and rear). For the nautical types it has a slight list to port.

    Is there a quick and easy procedure to adjust the spring(s) slightly to put the car back on an even keel?

    Thanks!
     
  2. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    As far as I know, the stock springs/Koni setup don't allow for height adjustment. I just replaced my shocks/springs (77 308) with Varishocks/QA-1 springs. Really nice improvement--less wallow, better control.
    Some mods on the a-arms were necessary--no big deal.

    The Varishock coil-over lets you adjust the ride height by raising/lowering the lower spring perch. They screw on.....

    Greg
     
  3. FarmerDave

    FarmerDave F1 World Champ
    Consultant

    Jul 26, 2004
    15,782
    Full Name:
    IgnoranteWest
    Adkins? :D
     
  4. Hubert

    Hubert F1 Rookie

    Jan 3, 2002
    2,642
    The Left Coast
    You mean cornerweighting?
    You can't do it unless your spring are perched on a threaded shock body or sleeve.
     
  5. bearduke1

    bearduke1 Rookie

    Oct 19, 2004
    26
    South Carolina
    Full Name:
    Bubba Joe
    I'm not trying to achieve an equal weight distribution, just trying to get the car to sit level even when I'm not sitting inside. (without me in it it has the 1/2" lean to the left)

    Yep I'm on diet, but come'on I only weigh 200lbs!
     
  6. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
    NWA
    Full Name:
    Paul
    Bigger tyres on the port side? just kidding......
     
  7. Spasso

    Spasso F1 World Champ

    Feb 16, 2003
    14,656
    The fabulous PNW
    Full Name:
    Han Solo
    Check the rubber bushings in the upper and lower "eyes" of all four shocks.

    If any of the bushings are split or collapsed on the left side you have the cause of the 'list'.
     
  8. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    Not to hijack the thread, but where did you end up with the stiffness settings on the shock adjustment dials?
     
  9. ferrarifixer

    ferrarifixer F1 Veteran
    BANNED

    Jul 22, 2003
    8,520
    Melbourne
    Full Name:
    Phil Hughes
    Check the springs for broken coils too. Rare, but not to be discounted.

    Also, the shocks can be partially seized and suffer from "jacking down" with an over stiff rebound due to blocked valve.
     
  10. chrismorse

    chrismorse Formula 3

    Feb 16, 2004
    2,150
    way north california
    Full Name:
    chris morse

    Greg,

    What method did you use to set the spring perch??

    A) Install the spring to a measured height??

    B) Count the number of turns of the perch nut??

    C) Scales?? How close were you able to get??

    D) "Back yard method" Remove Wheels from rear of car and support the chasis at the desired height, go to the front end and adjust the spring perches to the desired height. Remove blocks from back end, install rear tires, remove tires from front end and support chsis at desired ride height, adjust back spring perches to achieve correct rear height.

    All methods assume:

    Disconnected anti roll bars, tires properly inflated, 1/2 load of fuel, flat & level concrete, 180 pound bag of cat food in drivers seat.

    As you can see, I am massively confused about this process and could use a little guidance setting things up.

    OBTW, what camber settings did you have set after the height was done??

    chris
     
  11. GTO84

    GTO84 Formula Junior

    Dec 13, 2003
    566
    Did you measure it while you were in it?
     
  12. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Mike,
    I set the Varishock firmness to halfway, or click #8 (out of 16 total). I might even go a bit firmer, the car feels pretty plush even at halfway to max. Maybe 3 more clicks per corner....

    Chris,
    I leveled them out by measuring fender lip height from ground to inner fender lip, all 4 corner, before the changeout (still on stock setup). [Actually, this was Mike's suggestion..]

    From this point it's purely trial-and-error. I think I screwed the bottom perches up halway on the shock body, mounted them, and lowered the car.
    It was WAY LOW, so I measured again to see how far off I was, raised the car to unload the suspension, and raised the lower perches even further. The car still sits a bit low--I'll probably raise it even more. I'm currently at 25 7/8" front, and 26 1/2" rear. I'll probably go 26" front, 27 1/4 rear.
    Yes, I counted the threads (per end) to make sure they match....

    Oh yeah, Mike--I found that I had to mount the rear Varishocks with the firmness knob FACING IN!! I then had to cut out part of the lower rear a-arm to clear the knob!! Otherwise, when the car was lowered, it would have sheared the knob off! I surely wouldn't fit facing outward--the knob was already resting on the lower arm, and would also have sheared off when the car was lowered. So, I had to cut out portions of a-arms front and rear.........!! Nobody mentioned the rear a-arm clearance issue before....

    Greg
     
  13. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    Yes, the rear shocks did have to be swiveled around so the knob faces in (no big deal except the pretty decal no longer shows), but I don't recall any problen with knob clearance... I'll have to go look and take a pic. And don't you mean the rear *upper* arm rather than *lower* arm?
     
  14. GTO84

    GTO84 Formula Junior

    Dec 13, 2003
    566
    Don't measure the fender lip. Measure the frame to ground. This is WAY more accurate than measuring bodywork. What if your fender is uneven? Now your chassis is too.
     
  15. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Kris,
    Good point. Must explain why my right rear fender-to-ground measures a 1/2" lower than the left rear. However, the car is level--I placed a level on the rear bumper--it's perfectly level!!

    Why is this? Anomalies in bodywork?

    Greg
     
  16. GTO84

    GTO84 Formula Junior

    Dec 13, 2003
    566
    Once again placing a level on the rear bumper doesn't mean the car is level. It means the level is level. The ground probably isn't level, your bumper may be off too. I've measured many cars, and 75% have crooked bodywork, but you can't see it with the naked eye. Just measure from the frame to the floor on a somewhat level surface, and you'll get the best results. Make sure your shock and a- arm bushings don't sag, and disconnect the sway bar links to eliminate the possibility of a bent bar jacking the car diagonally.
     

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