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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Jul-22-2019, 05:13:52 PM   #1
stash1
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Default Ground Control Race Camber Plates

Hey fellas, just picked up a JRZ kit w/the Ground Control race camber plates and wanted to hear from users who have experience w/them. Specifically, I want to know how harsh they are, and are they ok for street applications? TIA!
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Old Mon, Jul-22-2019, 05:52:24 PM   #2
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Default Re: Ground Control Race Camber Plates

I'm currently using GC Race camber plates with ASTs, mostly on the street. I'm currently running 450lb/in springs up front. I have also run GC Street camber plates on my car in the past.

With more metal to metal contact, the Race plates feel "direct". There's a little more noise, vibration, and harshness compared to the Street but not enough to pick one over the other.

The bearings do make noise so you need to maintain them once in a while, which means stripping them down, cleaning them, and re-greasing the bearings. I am due for this as I am getting some noise on impacts and also while turning at parking lot speeds.

However, I think the adjustability of the Race vs. the Street is probably the biggest reason to pick one over the other.

Personally, I think they're OK for street usage.
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Old Mon, Jul-22-2019, 05:56:21 PM   #3
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Default Re: Ground Control Race Camber Plates

They're as harsh as a camber plate can be-- zero isolation provided.
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Old Mon, Jul-22-2019, 06:21:56 PM   #4
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Default Re: Ground Control Race Camber Plates

They're direct/ solid.. but definitely not the harshest modification I've ever done. I didn't notice going from stock to race camber plates anywhere near as much as putting in stiff differential bushings, etc.

Damper settings and spring rates have a bigger impact on how comfortable the car is, IMHO
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Old Mon, Jul-22-2019, 06:38:17 PM   #5
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Default Re: Ground Control Race Camber Plates

Thanx everyone! I guess that I'll give them a shot, but if they're too harsh for my sensitive backside...then there will be a set of GC race camber plates for sale shortly.
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Old Mon, Jul-22-2019, 08:05:32 PM   #6
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Default Re: Ground Control Race Camber Plates

I forget what the minimum camber setting is, but I found it to be pretty aggressive for street settings. For track it's fine. I had a pair and sold them for TCK's.
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Old Mon, Jul-22-2019, 10:00:02 PM   #7
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Default Re: Ground Control Race Camber Plates

I just switched out from street to race and there's some extra noise during turning but within what I expected.
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Old Tue, Jul-23-2019, 02:08:46 AM   #8
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Default Re: Ground Control Race Camber Plates

Only complaint i have with mine is coil bind at low speed tight turns like into a parking space. I have swift "thrust sheets" to quiet this but i am waiting to install until i change to a "flat ride" setup
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Old Tue, Jul-23-2019, 02:55:30 PM   #9
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Default Re: Ground Control Race Camber Plates

Quote:
Originally Posted by bimmerfan08 View Post
I forget what the minimum camber setting is, but I found it to be pretty aggressive for street settings. For track it's fine. I had a pair and sold them for TCK's.
Quote:
Originally Posted by apexapex View Post
I just switched out from street to race and there's some extra noise during turning but within what I expected.
Thanx for the additional feedback fellas...I'm reconsidering the race plates now!

Quote:
Originally Posted by Joefresh View Post
Only complaint i have with mine is coil bind at low speed tight turns like into a parking space. I have swift "thrust sheets" to quiet this but i am waiting to install until i change to a "flat ride" setup
The race plates caused coil bind?
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Old Tue, Jul-23-2019, 04:06:21 PM   #10
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Default Re: Ground Control Race Camber Plates

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Originally Posted by stash1 View Post
The race plates caused coil bind?
IIRC the GC Race plates don't have a radial bearing. This causes the spring to either jump (larger input) or wind/unwind (smaller inputs) when steering is added, which people sometimes call (incorrectly) coil bind. For race use, people often correct this with thrust sheets. It addresses the issue in the short term, which is generally good enough for race use (when you can change out parts between races). It also takes up less space than a radial bearing, which is why companies use it for race plates-- it allows for longer springs at a given ride height.

For non race use, it's not a great solution-- as the thrust sheets age out, you'll either feel jumping or springiness in your steering.

The GC street plates use OE BMW e46 M3 radial bearings (as do the turner plates), which last for ten (hundreds?) of thousands of miles with dust/dirt/real world complications.
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Discussing Ground Control Race Camber Plates in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)