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watts or panhard

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rallyrs
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2011/06/08 20:56:13 (permalink)
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watts or panhard

we run a couple of mk2's predominantly in dirt events. Both have signs of excessive sideways diff deflection with rings scraped on the tailshafts from picking up the handbrake bracket & the seatbelt bolts.
What are your thoughts on a watts link v's a panhard?

If the watts pivot is attached to the chassis, how low does the pivot centre need to be to maintain or improve/lower the RC. My concern is too low and i'll destroy it on the first rock or rutted track.

Both cars run 2 leaf rears + the smallest leaf, konis & starion diff, billies & Hilux. Tyres (185/13 dunlop) which sit just above the guard lip
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    Mickas
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    RE: watts or panhard 2011/06/08 21:12:20 (permalink)
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    Watts... Boys running the panard usually rip the mounts out...
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    Gdub
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    RE: watts or panhard 2011/06/08 21:17:02 (permalink)
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    No comparison, watts every day of the week
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    rallyrs
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    RE: watts or panhard 2011/06/08 22:18:54 (permalink)
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    would you attach the pivot bearing to the diff or the chassis and at what hieght?
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    Mickas
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    RE: watts or panhard 2011/06/09 07:45:08 (permalink)
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    depends on your suspenion height. and also where you want your roll center.
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    rallyrs
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    RE: watts or panhard 2011/06/09 09:35:00 (permalink)
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    suspension hieght has the top of the taller 185/13 dunlop rallies just above the guard lip. RC I have no idea. My priorities are diff location & not having a negative impact the handling. Any gains are a bonus.
    Is their a formula/method/rule of thumb/link which can help determine RC
    #6

    maxrs
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    RE: watts or panhard 2011/06/09 09:59:21 (permalink)
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    Accurate suspension in Brisbane is the place to ask.
    Have the bars running parallel to the ground, when the is leaf springs are under load.
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    na.charrett
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    RE: watts or panhard 2011/06/10 13:03:56 (permalink)
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    I have been runnig a home made Panhard in the Autocross car for years, and combined with the homemade radius rods, it works quite well and I have never ripped it apart... PS - if you rip a Panhard mount off, you would alos likely damage or rip off the Watts mounts too....

    The Watts is a better design with less compromise though, but more fabrication..
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    rallyrs
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    RE: watts or panhard 2011/06/17 21:52:56 (permalink)
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    I've been googling and below sums up what most links infer.

    http://www.billzilla.org/suspensn.htm
    If it has a live axle, then the roll centre is often right in the middle of the diff housing but can be moved by means of a Watts link, Wobb link, Mumford link, Panhard rod, Jacob's Ladder, etc.

    http://www.minitruckinweb.com/tech/suspension/0606mt_rear_suspension_mini_trucks/pinion_angle.html#ixzz1PWyimeGg
    On a straight-axle-type rear suspension the roll center is "set" by whatever is used to eliminate lateral movement (e.g., Panhard bar or even a triangulated-type link system).

    Does anyone with an adjustable Watts find thay vary much from centre ?
    #9
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