505 GTI Wagon Suspension/Handeling
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  1. #1
    Tadpole
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    Default 505 GTI Wagon Suspension/Handeling

    Over the last few month I found the forum so helpful that I thought I would put this out there.

    I'm wondering if there is any easy way to improve my wagons handeling and suspension. I run standard 195/7014 Michelin tyres and mechanically the car is very good . The car is very good and fun to drive on smooth hotmix at speed. As soon as the road surface deteriorates to patches and pot holes, the wagon doesn't like it very much and tends to bounce around from bump to bump and requiers lots of concerntration to drive at highway speeds.

    Would lower profile tyers help? Or improved shocks Or am I expecting too much from my 21 year old car?

    Thanks

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  2. #2
    Fellow Frogger! sideways_505's Avatar
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    I'm thinking maybe you need new shock absorbers? My 505 is brilliant on rough roads.

    Anyway, get all the suspension bushes and the ball joints checked/replaced.

    Thanks

    Hayden

  3. #3
    Fellow Frogger!
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    I would agree with Hayden - mine is also a diamond in the rough so I would check the shocks and bushes...
    Good to hear that others are enjoying the great handling of these cars - seems incredible for such a big car, until you know...
    Cheers,
    Goonengerry 505


  4. #4
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    Quote Originally Posted by rustpug View Post
    Over the last few month I found the forum so helpful that I thought I would put this out there.

    I'm wondering if there is any easy way to improve my wagons handeling and suspension. I run standard 195/7014 Michelin tyres and mechanically the car is very good . The car is very good and fun to drive on smooth hotmix at speed. As soon as the road surface deteriorates to patches and pot holes, the wagon doesn't like it very much and tends to bounce around from bump to bump and requiers lots of concerntration to drive at highway speeds.

    Would lower profile tyers help? Or improved shocks Or am I expecting too much from my 21 year old car?

    Thanks
    Sounds like rear shocks, also check the rear gearbox mounting.
    I've found 505 wagons to be excellent on dirt roads, much better than the 404 and 504 wagons which bounced around a lot.
    The 403 and 203 wagons were very good though.
    Graham

  5. #5
    Fellow Frogger! Rally's Avatar
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    I have for sale a set of front struts fitted with Bilsteins .
    The bilsteins are from a Commodore and they really do make a huge differance on potholes and rough roads .

    Andy

  6. #6
    1000+ Posts Gamma's Avatar
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    Apart from ensuring the joints, springs, shockers and bushes are ok I would invest in a set of 15"GTI rims and use 195/60/16 MXV8s or XM1s. The lower profile and better rubber will show dividends straight away.

    Also remember they never raced wagons at Le Mans...

    Its a wagon, going faster will only increase the Labrador drool on the windows.
    Attached Thumbnails Attached Thumbnails 505 GTI Wagon Suspension/Handeling-dog-drool.jpg  
    /// 1986 SII 505 GTI
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  7. #7
    Tadpole
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    Ive had the bushes done this year. The car is fine in the dirt at lower speeds, it just doesn't like patchy tarmac at highway speeds and is easy bumped off line. Thanks to all for your comments

  8. #8
    1000+ Posts jo proffi's Avatar
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    Quote Originally Posted by rustpug View Post
    Ive had the bushes done this year. The car is fine in the dirt at lower speeds, it just doesn't like patchy tarmac at highway speeds and is easy bumped off line. Thanks to all for your comments
    Ahh, bumpsteer.

    Increasing air pressure in the tyres and/or moving to lower profile tyres will make this effect worse.
    Out of interest, what pressure are you running on the rear tyres??


    Jo

  9. #9
    1000+ Posts robmac's Avatar
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    Quote Originally Posted by rustpug View Post
    Ive had the bushes done this year. The car is fine in the dirt at lower speeds, it just doesn't like patchy tarmac at highway speeds and is easy bumped off line. Thanks to all for your comments
    I'd be checking the wheel bearings are without wear, bottom ball joints, struts and wheel alignment.

    If you are running very high front tyre pressures that may be an issue.

    Wear in the steering rack or tie rod ends will make the car seem directionally unstable but may not be the root cause.

    If you have much wider than normal tyres, without having adjusted camber this can cause the car to feel "twitchy" in the steering.

  10. #10
    1000+ Posts Wildebeest's Avatar
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    Quote Originally Posted by rustpug View Post
    Ive had the bushes done this year. The car is fine in the dirt at lower speeds, it just doesn't like patchy tarmac at highway speeds and is easy bumped off line. Thanks to all for your comments
    Rust',
    Check the rubber steering column flector.

    "Handeling" ? No problem this time of year, every church will be performing "The Messiah".

  11. #11
    1000+ Posts jo proffi's Avatar
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    Quote Originally Posted by Wildebeest View Post
    "Handeling" ? No problem this time of year, every church will be performing "The Messiah".

  12. #12
    Tadpole
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    Quote Originally Posted by jo proffi View Post
    Ahh, bumpsteer.

    Increasing air pressure in the tyres and/or moving to lower profile tyres will make this effect worse.
    Out of interest, what pressure are you running on the rear tyres??


    Jo

    I run 28 psi on the front and 35 on the rear as per owners manual

  13. #13
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    Quote Originally Posted by rustpug View Post
    I run 28 psi on the front and 35 on the rear as per owners manual
    Try a bit less in the rear.

  14. #14
    1000+ Posts jo proffi's Avatar
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    Quote Originally Posted by rustpug View Post
    I run 28 psi on the front and 35 on the rear as per owners manual
    Whilst there may well be other things wrong with the car that should handle prety well, messing with tyre pressure can sometime yield a positive result.
    Nothing is absolute and weight in the car can effect things greatly.
    Increasing tyre pressure is great for good roads/heavy loads or fast speeds but comfort and road holding over the rough suffer.

    Reducing the (rear) tyre pressure a little may make the car hold on better in the rough especially if it is an empty wagon.



    Jo

    PS I'm a slow typer....Yeh, Like Graham said...

  15. #15
    Tadpole
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    Thanks I'll give it a try

  16. #16
    1000+ Posts HONG KONG PUGGY's Avatar
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    32psi front, 34 rear (36 with load)
    Make sure the wheel alignment and camber is correct too as this messes with rough road handling of the wagon.

    Gamma??? This'd be interesting.......
    set of 15"GTI rims and use 195/60/16 MXV8s or XM1s
    Ooops, typo
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    "When you hit the tree between the headlights thats understeer. Oversteer is when you hit the tree between the Tail Lights" - Wayne Bell

  17. #17
    Fellow Frogger! sideways_505's Avatar
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    Quote Originally Posted by HONG KONG PUGGY View Post
    Gamma??? This'd be interesting....... Ooops, typo
    Mine has 205/60/16s on it, but I'm just special

    Thanks

    Hayden

  18. #18
    1000+ Posts HONG KONG PUGGY's Avatar
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    Quote Originally Posted by sideways_505 View Post
    Mine has 205/60/16s on it, but I'm just special

    Thanks

    Hayden
    Not as special as Gamma Hayden. He's apparantly fitted 16" tyres on 15" rims
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    "When you hit the tree between the headlights thats understeer. Oversteer is when you hit the tree between the Tail Lights" - Wayne Bell

  19. #19
    1000+ Posts catshamlet's Avatar
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    Quote Originally Posted by GRAHAM WALLIS View Post
    Try a bit less in the rear.
    More or less agrees with my doctor's advice, but ......I've enough kids already.



    Mike.
    Started out with nothing, still got most of it left.

  20. #20
    1000+ Posts Gamma's Avatar
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    Quote Originally Posted by HONG KONG PUGGY View Post
    32psi front, 34 rear (36 with load)
    Make sure the wheel alignment and camber is correct too as this messes with rough road handling of the wagon.

    Gamma??? This'd be interesting....... Ooops, typo
    An inch, only an inch.

    What possible difference could and inch or two make between friends....
    /// 1986 SII 505 GTI
    2003 T5 307 HDI
    2013 LandRover90
    Sacred cows make the best hamburger mince.
    If you run, you only die tired

  21. #21
    1000+ Posts Gamma's Avatar
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    Quote Originally Posted by HONG KONG PUGGY View Post
    Not as special as Gamma Hayden. He's apparantly fitted 16" tyres on 15" rims
    Thats what makes them easy to fit...
    /// 1986 SII 505 GTI
    2003 T5 307 HDI
    2013 LandRover90
    Sacred cows make the best hamburger mince.
    If you run, you only die tired

  22. #22
    Fellow Frogger! Uffee's Avatar
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    Quote Originally Posted by Rally View Post
    I have for sale a set of front struts fitted with Bilsteins .
    The bilsteins are from a Commodore and they really do make a huge differance on potholes and rough roads .

    Andy
    I've just come across this post. Could you please elaborate on modifications required to make the commodore bilsteins fit the pug struts?
    504 GL Coupe '73 Silver
    504 GTDT Pickup Mini-Motorhome '83 Coral Red
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