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    1. 04-09-2009 #121
      Vegas69's Avatar
      Vegas69
      Vegas69 is offline Registered User
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      Has to be body roll.

      Todd
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    3. 04-09-2009 #122
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      David Pozzi
      David Pozzi is offline -Moderator-
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      I see the tire distorting a lot, the low pressure makes that worse. The rim just moves up and down in an arc which is normal. I think the lower rear pressure worked well in this event.
      David
      67 Camaro RS that will be faster than anything Mary owns.
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    4. 04-09-2009 #123
      jb@ridetech
      jb@ridetech is offline Registered User
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      here is a video we just finished. http://ridetechtv.com/video/8552

      Jason Brady
      www.ridetech.com 812-482-2932

      The Guy who invented the first wheel was an idiot. The guy who invented the other three was a genius.
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    5. 04-09-2009 #124
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      Larry Callahan
      Larry Callahan is offline Administrator
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      Quote Originally Posted by jb@ridetech View Post
      here is a video we just finished. http://ridetechtv.com/video/8552
      Cool vid!

      Any chance you have any footage of MotiV8r? I showed up late and didn't run many laps and never took out my camera.
      Larry Callahan
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    6. 04-09-2009 #125
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      James OLC
      James OLC is offline Registered User
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      Cool vid Jason
      James
      1967 Camaro RS - The OLC
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    7. 04-09-2009 #126
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      79-TA
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      Quote Originally Posted by Steve1968LS2 View Post
      No, that's the sidewall deflecting.. I only had 28 lbs of air in the back tires. They didn't seem to be rolling over but the video makes it look like they were. Or it's an optical illusion.

      In any event, I think I will try 35lbs rear next time.

      I have some cool suspension video that I will be sending to Larry so he can flip it.
      Ah, that makes me wonder what my car's tire would have looked like. I ran 28 psi at Costa Mesa, but that was with an aspect ratio of 60.
      Brett H.

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    8. 04-09-2009 #127
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      Gandalf
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      Definitely body-roll. Keep your eye on the top lip of the rim (when the peeled-over tire is not hiding it - LOL). Each time it looks like the wheel is moving in/out is when that top lip is moving up or down relative to the camera = body roll.

      Awesome vid Steve - can't wait to see the tank-mounted one. That really is cool to see how much the tire deflects under load.

      G.
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