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rear wheel hop

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Old May 27, 2009 | 01:36 AM
  #1  
vaughany's Avatar
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From: New Zealand
rear wheel hop

Hey guys. I have an evo 7 club car in New Zealand. We use it for hillclimbs and sprints etc. I have bad wheel hop in the rear exiting tight corners and launching off the line. I have been told by BR to replace the trailing arm bushes. I will look at this but was also inclined to play with rear shock rebound as I feel the 500pd spring may be overriding the shock. Has anyone had the same issues and does anyone make a rear trailing arm custom. Some footage of my old Evo 1 below.

http://www.youtube.com/watch?v=5byvYXK87iY
http://www.youtube.com/watch?v=GFpvEsNvFHA
http://www.youtube.com/watch?v=TUQNdoRSg4s

And My 7 against a WRX

http://www.youtube.com/watch?v=-pYi4...eature=related
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Old May 27, 2009 | 08:03 AM
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From: Springfield, IL
What suspension your running and what settings (hard/soft) are you on?

Have you played with your rebound settings? Perhaps if you soften it up some you can 'absorb' some of that hop?
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Old May 27, 2009 | 12:04 PM
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Koni 28/12. Double adjustable. I have had them on full soft because it is very taily. I think it is maybe just bouncing on the spring. Increase rebound to let it stay down when it squats maybe?
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Old May 27, 2009 | 12:17 PM
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You want to increase the rebound and perhaps some compression to "dampen" some of the bouncing, not soften. Having the shocks too soft is what may be causing this in the 1st place. Nice vids btw
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Old May 27, 2009 | 12:28 PM
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From: Springfield, IL
Originally Posted by vaughany
Koni 28/12. Double adjustable. I have had them on full soft because it is very taily. I think it is maybe just bouncing on the spring. Increase rebound to let it stay down when it squats maybe?
Is that 28k / 12k rates?

Yeah, tighten that up.

I wouldn't track (or aggressive street drive) on anything with full soft. I accidently did a session last year with everything still on full soft and it just pushed / understeered everywhere!
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Old May 28, 2009 | 01:13 AM
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28/12 is the part number. Not sure what it relates too. I only had it on full soft to try to stop the oversteer. I will bring the dampening up and then either go lighter in springs or bar.
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