Dirt Truck Whompin'
Dirt Setup Basics - Help!
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Posted by Bill Johnson at 12:04 PM on May 01, 2008
Post #1

Hey guys. I'm looking for some base line help in making some setups.

1. What seems best for springs, soft or hard...and any spring split from front to rear?

2. Weight bias front to rear. what seem best for forward bite.

I'm not looking for setups but some ideas to try to get the dirt turcks and buggies to hook up better.

Posted by Mark Peeler at 02:29 PM on May 01, 2008
Post #2

Both vehicles are different animals. But what is common with both is ride height. I lift both of them up all the way to get maximum suspension travel.

Truck Springs:
I start at the softest spring rate and go up until the truck doesn’t bottom out much. I don’t mind if it does off the biggest jump, or if I come-up short. Keep adding front and rear spring rate until you are happy. By default the front rate will be stiffer then the rear, which makes sense because the motor is upfront and that is where all the weight is.

Buggie Springs:
Again, starting off with the softest spring rate and working my way stiffer as needed. I usually run more REAR spring rate with the buggie, the motor is in the rear and that is where all the weight is.

Shocks/Dampeners:
I usually start with the default rate until I get the springs close (once you have the spring rate close you might have to revisit them after the shocks are dialed in more) If the vehicle is new to me, I see what my range of dampener adjustment is and maybe try the middle setting (ie 0-50, try 25), keeping both rebound and compression the same.

The most useful tool I have is the Replay mode. I make an adjustment, make a lap or two, and then watch the replay and see how the vehicle is acting over the whoops or large jumps. I’m trying to get the vehicle body to stay as stationary as possible over the bumps and small jumps, letting the suspension soak up and move freely over all uneven terrain.

This is my method of madness when it comes to these dirt devils. Hope it helps.

Posted by Sam Moss at 03:09 PM on May 01, 2008
Post #3

In the trucks, i've always found it best to have a high bump setting, and a fairly soft rebound setting, especially on bumpy tracks. Also in buggies, i tend to stiffen the springs right up, as the buggies have so little power, if it bogs you've lost loads of time.

Posted by Bill Johnson at 12:01 AM on May 02, 2008
Post #4

Thanks guys...Off the to the garage for some tinker'n.