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  #51  
Old 03-18-2010, 03:49 PM
jmauld jmauld is offline
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Since you're using adjustable arm lengths, would it be beneficial to use those bolts to raise/lower the internal pivot point?
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  #52  
Old 03-18-2010, 04:51 PM
SoSideways SoSideways is offline
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Quote:
Originally Posted by jmauld View Post
Since you're using adjustable arm lengths, would it be beneficial to use those bolts to raise/lower the internal pivot point?
OOOOOOOOHHHHHHHHHHHHHH!!

Didn't even think about that.

Clever lad!!
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  #53  
Old 03-18-2010, 07:31 PM
Solo_S14 Solo_S14 is offline
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Good concept, but I'm not sure that amount of adjustment would really help?
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  #54  
Old 03-19-2010, 09:56 AM
Full-Race Geoff Full-Race Geoff is offline
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Originally Posted by Def View Post
X2 on the eccentric bolt positions. I have mine full inboard to give slightly longer arm lengths. I think I was sitting at 12.625" on the ruca and 8.5" on the traction arm. I'll see how it feels compared to 12.625 and 8.0". Probably
better...
i did what you are suggesting and it was not ideal -- what i am doing now is this:

8.5" traction rod
12.25" RUCA -- adjusting camber with eccentric
toe rod eccentric moved to make the toe rod as *Short* as possible, then toe is adjusted with the rod length
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  #55  
Old 03-19-2010, 10:37 AM
Solo_S14 Solo_S14 is offline
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Geoff, care to post up your ride height once you try out the specs in the OP?
I'll be doing a final adjustment the next time I get back at the car, then it's back on the ground for me.

Here are my heights for reference.

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  #56  
Old 03-19-2010, 11:20 AM
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CodyAce CodyAce is offline
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topic aside, your car looks great!
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  #57  
Old 03-19-2010, 03:54 PM
Full-Race Geoff Full-Race Geoff is offline
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yes once i have everything where i want it, ill plot the bumpsteer and be sure to share it with everyone here
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  #58  
Old 03-19-2010, 07:02 PM
Def Def is offline
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Quote:
Originally Posted by Full-Race Geoff View Post
i did what you are suggesting and it was not ideal -- what i am doing now is this:

8.5" traction rod
12.25" RUCA -- adjusting camber with eccentric
toe rod eccentric moved to make the toe rod as *Short* as possible, then toe is adjusted with the rod length
Any particular reason why it didn't work out well? About to realign my car so I might change it up.
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  #59  
Old 03-20-2010, 01:01 AM
Solo_S14 Solo_S14 is offline
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Mine are at about 12 1/8" and 8.5" right now, just because they were close to these settings without adjustment. I'd like to see his data and compare it to the OP's to see how these lengths compare.
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  #60  
Old 03-20-2010, 05:37 AM
Epstein Epstein is offline
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Don't forget that where your ride height is set (and the subsequent 0 height) will affect your graph. The overall shape should be the same, though.

As far as the ziptied shorter traction arm theory, I really don't think bumpsteer has anything to do with it. With a short traction arm, the spindle rolls forward a lot quicker than with a longer one. That tells me that anti-squat is being changed. I really doubt the drift guys have bumpsteer issues anyways, considering the fact that they don't have any compliance to begin with. That's one way to solve bumpsteer.... don't have any bump.
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