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      02-08-2020, 10:17 AM   #1
dptmachine
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SLR Custom Control Arms

At the shop yesterday. The control arms finally showed up. The car was hanging in the air so I grabbed a pic. The Ground Control ARB linkage is going to need some work to hook up. The current plan is to machine an accommodation for it to mount up. The car will be on the ground next week for alignment, chassis mods as needed, and Forgeline custom fitment.
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      02-09-2020, 11:21 PM   #2
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Looks very very nice.. did the kit include the new tie rod arms? or was that an optional extra? I guess if its put the hub outwards, then it probably included the arms, (which reminds me, I should check my own kit)

Did you have to weld in steering stops?

Remember to either lockwire those nuts or something else as there have been reports of the nuts backing off.

Cant wait to hear how these feel, I think its the same kit as Michael is running right? very very nice, and ive only heard positive reviews..

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      02-10-2020, 03:38 PM   #3
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The kit included the tie-rods. They had just installed just before I showed up. As for the steering stops, once the car is on the ground and aligned and any body mods are accouted for, the stops will be considered.

I will definitely look into securing the fasteners. I thought about trying to get a photo of the tire hanging in the wheel well, but pointless based on geometry.

I posted in the exhaust section as well, Probably should have a build thread and collect in one spot.

I just recently got confirmation on the respray; Bruce Canepa spoke with the shop an supplied pain codes;
BMW 300; or Apline White III, and some PPG DBC Paintline 73902
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      02-11-2020, 07:35 PM   #4
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SLR

Cool, another Z4M with an SLR kit...

After a couple seasons on the car, some feedback:
Overall, good kit. Sean is excellent to work with and is very responsive. Steering isn't too quick, as I feared. Arms and hardware seem stout and are holding up. Camber is dialed way back (-2.5/-1.5). Not sure if it's the roll center correction or something else, but tire temps confirm that the car doesn't like a lot of camber.

Three issues with the kit.
1. Hardware loosened up on me, creating a scary shimmy at speed. I double nutted all the hardware, but I still check the torque on the nuts frequently. See pic.
2. Tie rod ends are not very good. Mine developed play after one season. I ordered higher quality Aurora rod ends ($75 ea) that seem to be holding up much better. You can see the part number in the pic.
3. The small FCAB Delrin bushings wore out after a couple seasons. They're easy to replace and Sean sells them for a very reasonable $25/pair.

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      02-12-2020, 09:20 AM   #5
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Thanks for the head-up. I am coordinating my work with AR Motorsports, I will share the info. This car will be primary HPDE and like events, so it will be imperative to keep it in top condition running on the track.
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      02-12-2020, 11:40 AM   #6
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not to derail the thread, but are you using an e46 m3 front spindle/knuckle setup on your car? looking at the pics it looks like a different shock mount setup, but it could also be my eyes messing with me.
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      02-12-2020, 12:50 PM   #7
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I am also running these arms about a year now and love them! I love the faster steering and I don't find it overly fast. Like Michael I was able to dial the camber way back and still get better front end grip then i could ever get with the stock arms.

My only issue is after installing the arms I slightly over active abs. It seems when ever i turn from the straight ahead position the abs wants to activate. I have replaced wheel bearings/abs sensors but I am still chasing the issue.

Anybody else with these arms having abs issues?
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      02-12-2020, 04:40 PM   #8
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Good eyes OG_M3; those are e46 M3 "knuckle" I have a e46 M3 track car with same set-up with AP radical brakes that I could use on this car. These e46 knuckles can be had anywhere.
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