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Old 01-13-2008, 07:34 AM   #1
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Can someone explain....

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Could one of you veterans explain how to a "droop" set up works?
I used traxxas big bores on my build, all I did was fill the shocks with oil and removed the springs.
When I set my truck down, one side sags more than the other and if I compress the suspension, it doesnt come back up. So how do I make this work?
Thank you.
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Old 01-13-2008, 08:32 AM   #2
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first off what weight oil are in the shocks.

i would start with 80 wt ( my personal preference) and go from there.

also it sounds like one of your shocks may not have been bled properly.

The only reason i say that is because i had the same problem and it ended up being that there was air in one of the shocks.

you can also try internal shock springs. with light oil and so on.

i know it sounds corny but you just have to try different settings for where you will mainly run.
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Old 01-13-2008, 08:55 AM   #3
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If you haven't already... The best info on droop...

... many more info by use the "search" buttom.
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Old 01-13-2008, 10:02 AM   #4
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Thaks Roc. I did do a search there and got over 60 pages...I lost interest after the 1st 20 useless ones.LOL
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Old 01-13-2008, 10:26 AM   #5
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i'm no crawler, but i can tell you when you fill shocks, you have to fill them so theres no air and so that all 4 respond the same when the shaft is plunged in (rebound) in terms of the ditance the shaft rebounds and the time it takes for the shaft to rebound.
1st thing you might want to do is search for the type of shock you have and see if you can find online instructions for filling and bleeding them.
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Old 01-13-2008, 11:17 AM   #6
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Ive set up several droop set ups now. Basicailly you dont run a spring so when the truck is just sitting its as low as its going to get. To get that point you put a piece of fuel tubing on the shaft of the shock on the outside. Then to get the upper most travel point you put a piece of fuel tube on the inside of the shock below the oriface plate. You can run a spring on the inside but its usually to pull the truck down not up like a normal spring.

The rebound of the shock is less important. You have to make sure the shock doesnot go hydro static. Make sure the shock will go the complete travel without locking up. It sounds like that is whats happening to you.

If the truck is sitting too low then add fuel tubing on the outside

Then if the truck flexes too much then add tubing to the inside.

Then add the oil to the shock. Depending on the what you feel works etc but I'll start with a 70-90 and go from there. Some run heavy diff oils but I dont think thats nessissary but ive neaver tried an oil that thick. Of corse oil changes on temp so warmer climates would need a heaver oil. That may be why the guys in the states use a hevier oil.

On the last crawler meet I ran a 30 in my droop setup dodge scale truck. because it was a bit chilly it worked great.

One more thing. When you run a droop setup you have to have some good weight in the wheels. Lead weights or metal BB's. Because there is no spring to push the wheel down you need some weight to hold it down and get that grip needed.

On the stock AX-10 I used 1 inch on the outside of the shock and 1/4 inch on the inside.

I hope that helps

If you have any other questions just ask.
RCCO - Radio Control Crawlers of Ontario
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Old 01-14-2008, 06:34 AM   #7
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I will try all your suggestions and see what I come up with...I have no doubts it is me thats doing something wrong, Its just hard for me to figure whats wrong when I dont know what im doing in the 1st place.LOL.
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