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Anyone use ERPs rear spring plates?

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Old 04-15-2013, 05:36 PM
  #61  
ThomasC2
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Vandit:yes, on Wednesday. The car is now ready to go. I'll report back on Wednesday evening!

Thomas
Old 04-15-2013, 06:17 PM
  #62  
Vandit
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Good deal.


One thing to note about the car since I put it back on the road w/ the ERP plates and the Powerflex bushes. I've done two autocross events over the past 2 weekends, both at the same lot, a higher grip concrete surface. When the car's rear end starts to slide, it sends noticeable resonance through the car.

I have a BK harness bar on the car w/ a Manfrotto Super Clamp and a quick release mount that I use for my GoPro. Well, that resonance causes the mount on the GoPro case to fall no matter how tight I tighten it down. Messes w/ the FOV on my on-board videos if I have a big slide during the run.

It doesn't do the resonance when sliding on slicker surfaces such as asphalt.
Old 04-16-2013, 12:31 AM
  #63  
Jacke2c
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Send that to GoPro....
Old 04-16-2013, 03:43 AM
  #64  
ThomasC2
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In Sweden we only have asphalt, or at Spa or Hockenheim or the ring :-)

Thomas
Old 04-17-2013, 10:59 AM
  #65  
ThomasC2
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The workshop got an overload today, so my car won't be ready until tomorrow :-(

Thomas
Old 04-18-2013, 11:32 AM
  #66  
ThomasC2
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OK Vandit, here we go!

They said probably -3,2 as a max camber in the rear. So in other words, it should be enough for most of us. Remember that I have monoball top mounts so that probably helps a bit.

Thomas
Old 04-18-2013, 11:42 AM
  #67  
Vandit
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That sounds much better! Looks like I have some rework to do, flipping the plates again.

I had anticipated doing it by this weekend, but will likely wait a couple more weekends since i'll be busy and not racing the car.

I'll update the thread with my results once completed.

Thanks Thomas! I got lucky that you were in process w/ these and able to test/prove the solution for us.
Old 04-18-2013, 11:50 AM
  #68  
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Just happy to help out! My car is ready to go now, finally! Beacuse tomorrow I'm off to my first trackday for this season :-)

Thomas
Old 04-18-2013, 01:22 PM
  #69  
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I am using the ERP spring plates and yes I had to flip them bk n fourth to find the correct way to get what I needed. With that said I am running -3.1 in the rear now. Probably had room to go more but with the tires I am using that seems to be allowing correct tire temp across the tread surface. Also I am only running -2.5f so do not want a bigger split I may be going -2.8f after one more session of checking tire temps and shoulder wear. Rears are stellar now though. I agree ERP could communicate better proper installation I think they assume the wrench installing them should know?
Old 05-18-2013, 02:28 PM
  #70  
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I flipped the plates last weekend (slotted hole upward) and cranked the eccentrics for max camber. A visible increase in negative camber was the result. Like a finger gap between the rear tire (Cup 2, 9" +55) and the oil line. I took it in for an alignment this morning and the machine said the rears were at -3.0 and -2.8. I had that dialed back to -2.0 on both sides and it all worked out well.
Old 05-18-2013, 06:22 PM
  #71  
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This is good info. Thanks Rennlist community. I have a set awaiting installation in my garage, so now I can proceed knowing that I have it right.



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