505 - Wet Leg Options
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  1. #1
    Fellow Frogger!
    Join Date
    Jan 2005
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    Ferntree Gully, Melbourne, Victoria
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    Default 505 - Wet Leg Options

    G'day All,

    I am currently running 505 wet leg struts with coil overs in the front of the 504, but i am having problems...

    i have 270lbs spring.

    the problem is that i have a very bouncy front end. its nice a still when stationary but when i'm moving its all over the place.

    i have tried the following oils in the wet legs:

    - Trans Trac 30, cSt of 10.5 @100 deg
    - lsx 90, cSt of 19.8 @ 100 deg.

    neither of which are working the way i need them to.

    What would be the best solution?

    What other oils can i try?
    i have looked at bike fork oil, but finding a 30w oil is getting very hard as the OEM are moving to thinner and thinner 5w etc.

    how hard is it to put an insert in?

    does anybody have some koni's spare?

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    thanks
    1972 504 Ti

  2. #2
    1000+ Posts
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    Default

    The probelm seems to be lack of upward thrust capability.

    I suggest that installing new inserts is the safest way to "get it right". Konis or Boge inserts are good - stay away from Gabriel.

    Installing the inserts is simple - remove all the old gear including the oil, fit the inserts and tighten up the retaining cover. I usually put a little hydraulic oil around the insert - it supposedly helps cooling, and doesnt do any harm.
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  3. #3
    Fellow Frogger!
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    Default

    The spring rate is right (although more than200% stiffer than the "civilian" version) but no wet insert will be able to control the rebound of this spring. You will need to have custom made shocks with around 320 bump/240 rebound. Best solution is to get new Bilsteins from the UK and get them re-valved at your local Bilstein. If this is not a option, get 130 lbs/inch springs made, they are the upper limit for your oil inserts.

  4. #4
    Fellow Frogger!
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    Default

    thanks for that info,


    ive have spoken to Top Performace about some konis this morning.

    so i will let you know how it all ends up.
    1972 504 Ti

  5. #5
    Fellow Frogger! Rally's Avatar
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    Default

    Or you could buy my pair of 505 front struts that have Bilstein rally rated inserts already fitted.

    These shocks will handle your springs.
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  6. #6
    Fellow Frogger!
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    Default Update..

    Just an update..

    i went and visited Toperformance after work on Friday and picked up a set of 504 Koni inserts (reds) at a good price.

    i fitted them over the weekend and testing so far looks good, Ive got a motorkhana on Sunday so we will see then.

    mike
    1972 504 Ti

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