Speed UTV

I’m 100% confident a few independent teams racing a Speed would have better results then RG & team have had.
 
Rockwood said:

Another rollover. Must be geometry related too. Can someone calculate the track width change on a live axle? The math isn’t mathing for me… :ROFLMAO:
Click to expand...
That trucks first problem was a rear flat tire going down. You could see it folding over and pulling off the beadlock. Once it dug in to the berm it was all over. Also the front twin I-beam suspension is awesome for cheap wheel travel, but it’s got goofy geometry, which definitely did not help it.
 
NIKAL said:
That trucks first problem was a rear flat tire going down. You could see it folding over and pulling off the beadlock. Once it dug in to the berm it was all over. Also the front twin I-beam suspension is awesome for cheap wheel travel, but it’s got goofy geometry, which definitely did not help it.
Click to expand...
It bounced, went sideways a little, landed in a rut and went over. Tire was fine on entry…

1734789165650.png

And I beam will have waaaaaay less track width change than double wishbone. Since that’s what we’re blaming for everything…


DAMN THOSE TROPHY TRUCKS! Track width change off the charts compared to I beam, it’s causing rollovers!!! :ROFLMAO:
 
Rockwood said:
It bounced, went sideways a little, landed in a rut and went over. Tire was fine on entry…

View attachment 133126

And I beam will have waaaaaay less track width change than double wishbone. Since that’s what we’re blaming for everything…


DAMN THOSE TROPHY TRUCKS! Track width change off the charts compared to I beam, it’s causing rollovers!!! :ROFLMAO:
Click to expand...
If you want to get technical. It was the right rear tire that was going down or very low on pressure and looks to be pulling off the beadlock. Once that dug into the berm it threw the truck in the air.

IMG_3994.jpegIMG_3990.pngIMG_3988.png

Then the I-beam front suspension which your not going to turn back when at full lock digs in and the tire folds over.
IMG_3991.png


Then the fact that this truck is using stock designed steering, and not equal length cross over steering & tie rods, the bumpsteer tow change is huge on this truck. The left side tie rod is shorter and naturally pulls the toe in much greater then the right side which still toes in. This is why guys running longer or long travel I beams run a swing set steering system as it allows the tie rods to be equal with the ibeams, pivot in the same plain and reduces the toe change and keeps it equal on both sides.

Also I-beams move in the same direction as a swing axle VW does. So your track width does change as does your contact patch with the ground. This guys truck looks to be running stock bent I-beams too, which does narrow the truck an inch or two per side.

IMG_3993.png

Just because we are getting technical. This is not a trophy truck or even a full sized truck. It’s a Ranger class 7 style truck.
 
Long live the I Beam...gonna BroPhy Truck my Ranger FHJ sold me...some day.

Screenshot_20240624_081759_Messenger.jpg
 
You must log in or register to reply here.
Back
Top