Fermoy Model Car Club ~ Munster RC Car Club

Radio Control Car racing in Munster
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 Post subject: Ride height and Droop
PostPosted: Sun Feb 15, 2009 4:27 pm 
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When setting the ride height on the Mi3 should the Droop screws be touching the chassis keeping the wishbones level or should they be backed off completely before setting the ride height.
Any help would be greatly appreciated
Also if anyone has a simple idea of setting the droop on an Mi3 they might post it .Ta :smt023


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PostPosted: Sun Feb 15, 2009 4:55 pm 
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Hey,

Droop and ride height are two different settings.

Ride height is how high off the ground the chassis is fully laden, ie race ready.

Droop is the extra that you have above the ride height. So If you have the ride height at 6mm. (Use pre-load on the shock springs to adjust the ride height.) Then you lift up the chassis, the amount you can lift the chassis before the wheels come off the ground is the amount of troop that you are running.

Droop adjusts the weight transfer front to back (on / off power) on the can.

Get back to me if this doesn't make sense.

MiCk B. :-)

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 Post subject:
PostPosted: Sun Feb 15, 2009 5:00 pm 
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Thanks mick.
the way i read it is that the ride height is set before the droop is set, so when setting the ride height should the droop screws be backed off the chassis or should they touch the chassis. ( this is before i set the droop).
This is where i am confused


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PostPosted: Sun Feb 15, 2009 6:00 pm 
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paulm wrote:
Thanks mick.
the way i read it is that the ride height is set before the droop is set, so when setting the ride height should the droop screws be backed off the chassis or should they touch the chassis. ( this is before i set the droop).
This is where i am confused


I suppose
Back off the screws as you do
Set the ride height ( 5 front and 5.5 rear is fairly standard )
take off the wheels
adjust droop screws so as with a vernier caliper you measure to the tops of the axles
23mm front
23.5mm rear

 :smt002

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 Post subject:
PostPosted: Sun Feb 15, 2009 8:08 pm 
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Thanks vectra will try those


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PostPosted: Sun Feb 15, 2009 9:56 pm 
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paulm wrote:
Thanks vectra will try those


I meant to say that when you take off the wheels those droop measurements are taken with the chassis sitting on a flat surface and measure to the tops of the axles.
You probably gathered that anyway  :smt002

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PostPosted: Mon Feb 16, 2009 10:13 am 
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I think someones confused here are we talking about droop or downstop?

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PostPosted: Mon Feb 16, 2009 11:12 am 
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Graham Kenny wrote:
I think someones confused here are we talking about droop or downstop?


:smt017

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PostPosted: Mon Feb 16, 2009 11:50 am 
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Thanks vectra ,my measurements worked out different to yours but at least now i kinda know how to go about it.

Graham i think i was on about droop ( setting it after i set the ride height ), down stop is set before i think,  although do you use the same grub screw to set both or am i wrong


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PostPosted: Mon Feb 16, 2009 2:24 pm 
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Graham: My understanding is that droop & downstops are the same.
IE how much about ride-height that the chassis lifts.

paulm: Droop & ride-height are set independently of each other. (To a point) So you can change one with out changing the other.

As a general rule the higher the traction is the less droop you would run, less chassis roll, but you may leave the ride-height alone, some tracks have a minimum ride height rule.

Tools like this make setting the ride-height & droop quick and easy:

Image

http://www.cmldistribution.co.uk/cml_pr ... yImage=3#G



MiCk B. :-)

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