R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 2002 R53 Suspension Refresh (rebuild?) Advice

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Old Oct 27, 2018 | 07:56 AM
  #26  
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deepgrey
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It seems odd that the plates weren’t marked. My SPC plates were stamped for which side, but even then, it’s not too hard to figure out which side they go on because they’re asymmetrical. The shop should have been able to figure that out, too.

Any MacPherson strut-specific spring compressor should work. I have a cheap $25 one from amazon that works fine for these cars.

There is no caster adjustment on these cars. Without adjustable plates, all you can change is toe. If I recall correctly, I’m running 0.12 inches of total toe-in, which is factory spec. I think the more track-oriented guys go to zero toe or a little toe-out.
 
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Old Oct 27, 2018 | 10:30 AM
  #27  
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Got it fixed today, didn't take too long. The shop switched the camber plates on the struts and all is well now. No charge.
I only had the shop compress the springs, remove the top nut, and change out the old strut mounts for the camber plates. I tried using spring compressors (they seem fairly standard?) but I couldn't compress the springs down enough to release the tension so I didn't want to risk it.
Maybe I'll go for zero toe?
Time to bolt everything back together today and tomorrow (except for the subframe bolt I'm awaiting...)! Can't wait to take her for a drive!
Thanks everyone for your suggestions and advice!
 
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Old Oct 29, 2018 | 08:31 AM
  #28  
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Road Atlanta....Hmmmm
Just finished watching the Petit La Mans that were held there. Looks like a really fun track.

I would do a slight toe-in for a DD/street car and I would do -2 camber on the rear to balance with the added front camber and offset the tendency to over-rotate with the addition of only the large rear swaybar. Personally I am a fan of having the large front swaybar along with a large RSB for a track car. I like the balance it gives.
 
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Old Oct 29, 2018 | 09:55 AM
  #29  
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I run zero front toe and 0.07° inward on the rear, and I don't find it to be at all squirrely. That said, nothing wrong with the stock setting for a DD.

You may want to consider dialing down your rear bar setting with the camber plates in, depending on how you like the car to rotate. The plates will really pull the front around now
 
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Old Oct 29, 2018 | 06:06 PM
  #30  
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Originally Posted by HaltCatchFire
You may want to consider dialing down your rear bar setting with the camber plates in, depending on how you like the car to rotate. The plates will really pull the front around now
Thanks for weighting in!
I have the WMW adjustable rear bar set at the middle setting. Would you recommend moving to the least stiff setting because of the front camber plates?
 
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Old Oct 29, 2018 | 06:10 PM
  #31  
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Originally Posted by Eddie07S
Road Atlanta....Hmmmm
Just finished watching the Petit La Mans that were held there. Looks like a really fun track.

I would do a slight toe-in for a DD/street car and I would do -2 camber on the rear to balance with the added front camber and offset the tendency to over-rotate with the addition of only the large rear swaybar. Personally I am a fan of having the large front swaybar along with a large RSB for a track car. I like the balance it gives.
Thanks for the suggestions!
I see your points. Sounds like the large rear swaybar, and now front camber plates, may bring on some oversteer?
Maybe I'll get the car out on the track and see how it drives as it is set up and report how the car felt. I'll report how it handled and see what you guys think as far as adjustments?
 
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Old Oct 29, 2018 | 06:25 PM
  #32  
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Originally Posted by kroach01
Maybe I'll get the car out on the track and see how it drives as it is set up and report how the car felt.
I'd do exactly this - everyone's car is a little different and has a personal feel. Play around with it and if it's too tail happy, dial it down. The nice thing about the WMW bar is that it takes 10 minutes to change the setting (jack, wheel off, move link, wheel back on, done!). You can do it between track runs if you want
 
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Old Oct 29, 2018 | 08:45 PM
  #33  
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Originally Posted by kroach01
Thanks for the suggestions!
I see your points. Sounds like the large rear swaybar, and now front camber plates, may bring on some oversteer?
Maybe I'll get the car out on the track and see how it drives as it is set up and report how the car felt. I'll report how it handled and see what you guys think as far as adjustments?
Yes it can. But it depends on how you drive. For example, if you straight line brake before turning in, there is the tendency to over brake which will cause you to get on the gas before the apex, which will cause the car to understeer. On the other hand, if you trail brake deep into the corner, you will load up the front tires, lower the car on the front suspension causing more camber and grip on the front, which in turn lightens the rear and the rear will lose grip causing the car to understeer less. Even with a large rear swaybar the former will still cause understeer. With trailbraking, the large RSB will tend to make it harder to perform because it will further reduce the grip at the rear, which can cause the car to oversteer.

Personally, I would start with the RSB on the softest setting until you get a really good feeling of how the car behaves for you.
 
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