S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

Anti Bump Steer

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Old Jan 20, 2006 | 10:10 PM
  #11  
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Originally Posted by mikegarrison,Jan 20 2006, 11:40 PM
Well, I have personal experience with the TC Designs (Go-Fast Lab) kit -- it survived 15 track days last year as well as a year of daily street driving. I don't know anybody who has experience with the J's kit in terms of durability. (That doesn't mean no one does, it just means *I* don't know anyone who does.)
I don't know anyone who's using the J's parts on a street driven car either, so I might end up being the first. Since J's in Japan uses the kits on their wide body race cars I'm not overly concerned about durability. AJ's is using the kits on their race only S2k's too. Does anyone know if the J's roll-center relocation kit is compatable with the TC Designs kit? Does anyone else make a roll-center relocation kit or a front bump steer kit for our cars? What about axle spacers?

From what I've seen (obviously limited) the J's components seem to be the only fully engineered S2000 suspension (geometry) solution. Are there others?
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Old Jan 21, 2006 | 02:07 PM
  #12  
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Originally Posted by wupike,Jan 20 2006, 06:53 PM
which one do you have? the rubber bushings or the heim joints?
Thanks for the info. Mike, i was just wondering because it seems like a simple mechanism. it's hard to believe that it cost $425.
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Old Jan 21, 2006 | 08:36 PM
  #13  
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The J's kit adjust the FRONT roll center.

The TC Design adjusts the REAR bump-steer.
J's makes a similar item, but it costs MORE.
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Old Jan 21, 2006 | 09:08 PM
  #14  
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[QUOTE=Asura,Jan 22 2006, 12:36 AM]The J's kit adjust the FRONT roll center.

The TC Design adjusts the REAR bump-steer.
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Old Jan 21, 2006 | 09:19 PM
  #15  
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Yes, for some reason they low-rider slam the racecars in Japan.
Makes the car much more twitchy and is not ideal unless you like hitting the bumpstops Makes very photogenic marketing collateral though.

The kits should work fine together, though I think you will feel more benefit from the rear kit (either J's or TC) over the front, as the rear bumpsteer is greater.


Had the first TC street kit on a street car. Now have the TC full-race kit. Happiest with other TC parts

Similar experience as being more predictable, but I can comment on RA1s only. Also helps with rain driving.
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Old Jan 21, 2006 | 09:57 PM
  #16  
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[QUOTE=Asura,Jan 22 2006, 01:19 AM]Yes, for some reason they low-rider slam the racecars in Japan.
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Old Jan 21, 2006 | 10:34 PM
  #17  
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I agree with you about doing it right the first time.
I was 1" lowered and tried going 1/8" lower on my old shocks, but hit the bumpstops which caused unpredictable spins and flying cones. Also a few stunned photographers Valving is another factor in addition to those you mentioned.

Half the fun is in the experimentation, though it can be frustrating. Things don't always work perfectly, but there are often pleasant surprises along the way and you do learn.
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Old Jan 22, 2006 | 01:54 PM
  #18  
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[QUOTE=Asura,Jan 22 2006, 02:34 AM]I agree with you about doing it right the first time.
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Old Jan 22, 2006 | 04:10 PM
  #19  
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Originally Posted by BlitzSRM,Jan 21 2006, 03:07 PM
Thanks for the info. Mike, i was just wondering because it seems like a simple mechanism. it's hard to believe that it cost $425.
It's a well-designed and well-built piece of hardware. I have no concerns with the price.
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Old Jan 22, 2006 | 04:17 PM
  #20  
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i never had bump steer as an issue in my race s2000......??? my alignment guy was smart enough to not lower the car toooo much though...
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