Droop

[robh]

Hi folks

Just got a carbon Mi2 and very nice it is too :)
Could anyone enlighten me on finer points of setting the droop?

Whats confusing (to me) is the sample setups in the back of the instructions showing droop settings of 8 front and 10 rear.

[colin_jackson]

right, once you have set the ride height, adjust the droop so that the total travel of the suspension will allow for a ride height clearence of 10mm rear and 7mm front.

check this buy putting your rige height gauge in the middle of the chassis (both front and back) and then measure the maximum clearence you can get.

if that makes sense ???

big tip, make sure droop is equal side to side!

colin

[robh]

ok makes more sense now.

So if i set the ride hight at say 5 mm front and 5.5 mm rear,
then remove the wheels and lay the chassis on a flat surface
and measure the distance from the chassis to the bottom of the end of the wishbone is this right?
and if i set the front to say 3 mm and the back to 4.5 mm
this would give 8 mm front and 10 mm rear droop.

[DA_cookie_monstA]

no, set the rideheight with the wheels on, to say 5mm. Then, with the wheels on, lift the front of the chassis, till the front wheels leave the ground, and measure, this is the droop measurement.

[robh]

So how do you get equal droop on each side?

[Remo]

check here: http://www.modeltech.co.uk/rclab/7-6protips.htm#droop

[MikeS]

author=robin Howett link=board=56;threadid=11074;start=0#msg100202 date=1079742661]
So how do you get equal droop on each side?


Hi Robin....

Start with your wheel off, place car on a flat plate, and if your suspension arms don't touch the plate, proceed, if they do, place some flat spacers under the chassis to lift it off the plate so that your arms don't touch the plate - a couple of 5mm drill bits are good for this.

Use a dial gauge and check and set your axle heights the same side to side - it doesn't matter what it actually is, this is just a starting point that has both side equal.

Put your wheels back on, then do it as DCM said. Just when you adjust, take care to make the exact same adjustment each side. It is very easy to do this way.

As for the measurements, I would assume from the dimensions you stated that they are the ride heights at normal and full droop, you said 8 and 10, I find this a very strange way to state it since what is the ride height that this is based on?

You can state droop in one of 2 ways, for example 5+3 or 5/8, which means 5mm ride height with 3mm droop or 5mm ride height and 8mm ride height at full droop.

All this of course will only work as long as you have no tweak!!!! Do not try to adjust droop with a tweaked chassis as it will just compound the problem.

<EDIT> Thanks Remo, forgot about that page...... ::)

[Bt]

or you could just buy a droop gauge to set it... losi (http://www.teamlosi.com/xxxs_page/xxxs_droop.htm) and hudy (http://www.hudy.net/xhudy/products/product_main.php?kategoria=64&amp;Hudy_Session=13f859b d9b55b005c39c7522fbd2bd61) do them. I had similar problems myself when first setting droop altho got it half sorted just now, but a droop guage will be in the post to me before too long ;)

[neveo]

So what hole is the best for most droop then ?

I dont undertsnad how the test drivers have nealy 10mm droop :eek: Can any1 explain please ?

Thanks