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Old 07-19-2007, 06:33 PM   #1
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Default Sportwerks Turmoil RTR steering question

I just got one, and I've found that the steering binds up whenever the front wheels are off the ground. My untrained eye tells me that it's the tie-rods that are binding because of the angle they're at when the suspension is at full droop. I asked at the local shop and they told me to adjust the "droop screws". I did find those and guess that would help, but I wanted to ask here too.

This other thread has a post that talks about a change which spaces the tie-rod down to fix bump steer, but I don't quite get what to do for that. I'm thinking that it might help with what I'm seeing.

New Sportwerks Turmoil ARR Buggy (race legal)

Can someone help me sort this out? Thanks!
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Old 07-20-2007, 05:49 AM   #2
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To shim out some bump steer you can put some small washers between the inner tie rod end ball stud and the steering acerman and between the outer tie rod end ball stud and the knuckle. If I remember right (it's been a long time) guys were shimming by 2 washers at the acerman and 1 washer at the knuckle. Also on your binding make sure your pivot balls are clean and not too tight.
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Old 07-20-2007, 05:54 AM   #3
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I just went and read the linked thread, BK is using a lock nut to space the inner tie rod end down. just assemble as he describes. You're basically just trying to make the tie rod closer to parallel with the ground. Shim the inside down and the outside up.
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Old 07-20-2007, 10:55 AM   #4
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OK, sounds good. I've tried adjusting the droop screws (since I saw that on another site) and it did help quite a bit. If I shim it some as well, I think all will be well. Thank you.
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Old 07-20-2007, 12:34 PM   #5
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I did a lot of tweaking on my car last year to solve your problem...


I put two washers under the ackerman plate, and then put a JR servo grommet bushing, flange side down, on the knuckle. You'll have to get some new rod ends. I found Mugen MBX-5r rod ends (#muge0814)worked the best because they're bent. The JR bushing is so there's no binding, because even in stock form, the old rod end would bind on the spindle. When you do this you'll also have to get a long screw and nut and replace the original flanged pivot ball with a round one.

After all that shimming you'll also have to grind some of the front arms away so that the steering is free even at full compression. You'll see what I mean if you try it. Once you do all that the car is very predictable and easy to drive.

Later
Alex
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