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M2 Technical Topics > Track / Autocross / Dragstrip > GC Camber Plates, Fall Line Link Kit, Alignment

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      07-26-2017, 04:58 AM   #1
tstafford
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GC Camber Plates, Fall Line Link Kit, Alignment

All,

Wanted to post results of some minor suspension mods.
- Ground control camber plates
- Fall line toe link kits
- Alignment: -2.5 front, -2.2 rear
Running on OEM Contis until they wear out - so not much longer.

Total cost of the parts, work and alignment was ~$2K. The goal was to reduce tire wear (we'll see) and to improve rear grip. I must say that the rear traction improvement is far beyond expectations. More experienced guys told me it would be dramatic but I was suspicious - (and wrong).

By the numbers - it looks like the mods are worth close to 2 seconds at AMP for me. (I run in the low 1.40s in the BWM and high 1.30s in my RS. So nothing too crazy).

If you're a regular track guy with the M2 I'd highly recommend these mods. And more importantly if you're in the Nashville area I'd even more highly recommend working with Bret at German Motorworks. He's done these mods now to a couple of M2s and knows what he's doing.
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      07-26-2017, 07:54 AM   #2
ZM2
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Quote:
Originally Posted by tstafford View Post
All,

Wanted to post results of some minor suspension mods.
- Ground control camber plates
- Fall line toe link kits
- Alignment: -2.5 front, -2.2 rear
Running on OEM Contis until they wear out - so not much longer.

Total cost of the parts, work and alignment was ~$2K. The goal was to reduce tire wear (we'll see) and to improve rear grip. I must say that the rear traction improvement is far beyond expectations. More experienced guys told me it would be dramatic but I was suspicious - (and wrong).

By the numbers - it looks like the mods are worth close to 2 seconds at AMP for me. (I run in the low 1.40s in the BWM and high 1.30s in my RS. So nothing too crazy).

If you're a regular track guy with the M2 I'd highly recommend these mods. And more importantly if you're in the Nashville area I'd even more highly recommend working with Bret at German Motorworks. He's done these mods now to a couple of M2s and knows what he's doing.
Any additional NVH from the toe link kit? Clinking noises?
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      07-26-2017, 06:14 PM   #3
tstafford
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^^^ No.
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      07-26-2017, 06:45 PM   #4
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Did you get the race kit from Fall Line?

Any sway bar adjustments (or links)?
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      07-27-2017, 05:23 AM   #5
tstafford
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Quote:
Originally Posted by lax01 View Post
Did you get the race kit from Fall Line?

Any sway bar adjustments (or links)?
I bought the cheaper alternative from Fall Line. I don't plan to adjust it frequently - just an alignment once or twice a season.

No adjustments to the sway bar.
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      08-21-2017, 02:07 PM   #6
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Quote:
Originally Posted by ZM2 View Post
Any additional NVH from the toe link kit? Clinking noises?
Thought I'd update. Rear suspension is definitely creaky. Doesn't bother me, but it might bother others. FYI and YMMV.
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      08-21-2017, 02:13 PM   #7
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Quote:
Originally Posted by tstafford View Post
Thought I'd update. Rear suspension is definitely creaky. Doesn't bother me, but it might bother others. FYI and YMMV.
Yeah, mine are creaky, as well. I did just the Fall Line toe links. I'll probably switch back to OEM and return them.

Does anyone know if the Dinan links help that much, and if they're silent?
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      08-22-2017, 07:27 AM   #8
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How long do the camber plates last before needing repair/replacement compared to OEM top hats?
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      08-22-2017, 11:40 AM   #9
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Quote:
Originally Posted by Polo08816 View Post
How long do the camber plates last before needing repair/replacement compared to OEM top hats?
It depends...
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      09-10-2017, 10:36 PM   #10
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Has anyone noticed any noises with the GC camber plates? Do you know if it raises the front at all if using the stock suspension?
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      09-16-2017, 07:33 PM   #11
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No noises after being on the car for 1 month, hopefully it stays that way. Paired with Bilstein PSS10
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