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Post by focalenergy on Jul 23, 2011 15:25:58 GMT -7
Hey guys, I was wondering what the affects would be if I ran essentially a three wheel canted setup with the fourth wheel not touching and no deliberate steer tweak on the FDW?
I don't have a way nor know how to test and tune steer on a three wheel touching setup. I'm guessing that's what is considered a rail runner, or if that's when there is no fourth wheel at all w/ some sort of guide in the wheel's place.
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Post by DNA RACING on Jul 23, 2011 15:53:38 GMT -7
if you have no steer in the fdw the car could move left to right as it goes down the track. a small amount of steer into the rail will give you a railrider. this keeps the car stable and stops the back and forth motion of the front end. it matters not if there is a 4th wheel or a peg. it is still called a railrider if it rides the rail. i slightly bent axle will give you the ability to ride the rail. turning the bent axle will adjust the amount of steer and cant on the fdw. everyone likes theirs different. I shoot for about 2" of drift over a 48" span. if you set up a level surface(left to right) and raise it an inch or 2 and run a marker down the center, by the time the car gets to the end it should move about 1 1/2" or 2" to the "peg or raised wheel"side. others can probably explain it better. bri
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Post by focalenergy on Jul 23, 2011 17:03:00 GMT -7
Ahhh okay cool, that's what I figured, but wasn't totally sure. Thank you for explaining, DNA. I've seen quite a few pictures of people using tuning tables w/ lines drawn across them or on a surface below a piece of glass, I had guessed that that was what the table's purpose was.
I guess I could easily make DB2 a railrider, since I don't have a tool to accurately to do it, would bending the FDW axle just slightly enough to give it approximately 2 degrees of cant be sufficient for this purpose?
Focal
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Post by focalenergy on Jul 25, 2011 7:19:24 GMT -7
Ok, if I am running right side as the DFW, which is what I'm planning on, how would I turn it to achieve positive cant? Is that when the outside edge of the wheel is touching or when the inside edge of the wheel touching?
Focal
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Post by focalenergy on Jul 25, 2011 17:08:25 GMT -7
Thanks for the diagram, 5kids, that is very helpful. It is considered positive cant when the outside of the wheel is touching. I modified my previous post so you may be able to better understand it now. 7DB, thank's for clearing up your previous post, that actually did help. I'm gonna go now and use the info you guys just gave me. Focal
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