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EdgeOfSanity's weekend track day build

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EdgeOfSanity

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Weather finally cleared out and I took the car for a test drive. Didn't make it 10 feet without a problem, passenger side rear strut is defective/blown. Just my luck.
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EdgeOfSanity

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Pulled the defective damper this afternoon and it is in fact blown. Had no problem compressing it by hand after pulling it out. Never thought to check this before installing. At least everyone involved is trying to expedite getting this resolved asap. Shipping it out to MCS tomorrow.

PXL_20260719_184530420.webp
 

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I'd be pretty upset - MCS is expensive and supposed to be quality.
 
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I'd be pretty upset - MCS is expensive and supposed to be quality.
More disappointed than anything. This is also eating up valuable testing time as I have a lot of mods going in before track season starts up again in mid September.
 
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MCS turned that blown damper around quickly and I got it back last night and installed this morning. Took the car for a long drive today, felt good to drive it again, its been sitting for the last 2 months due to weather, traveling, and broken parts. Ride quality is much better with the MCS coilovers in even if it is noticeably stiffer. I have always hated the way bmw's ride, this car is no exception. Rides a lot like my S4 does now, just stiffer and I love the way that car rides. Feels fantastic at highway speeds, can't wait to get it on track. Setup makes some noise at lower speeds, nothing at highway speeds. Mostly the dampers are noisy. I'll put some more miles on it this week, adjust the ride height a little bit this weekend and call it good until I get the verkline arms in.

Also, I installed the Rapid Designs rear diff brace earlier this week. Really nice part, love the quality and the looks. Makes a noticeable difference with shifts too and it was super easy to install with the Verus scoop.

PXL_20260721_005908523.webp


Fuel system up next.
 

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MCS customer support has been outstanding for me over the years. Def a nice refreshing difference from the rest of the trash industry.

MCS do ride incredible well. Wait until you track and launch off some curbs like they are nothing.
 
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Sort of got started with the fuel system this afternoon. Anyone that has done the install of the dorch zeitronix eca know what connectors and pins I need to pull from the bcm to splice their harness in? Their instructions look to be for a different car or gen of b58. I can ask them but I don't think I'm getting a response until next week.
 

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Sort of got started with the fuel system this afternoon. Anyone that has done the install of the dorch zeitronix eca know what connectors and pins I need to pull from the bcm to splice their harness in? Their instructions look to be for a different car or gen of b58. I can ask them but I don't think I'm getting a response until next week.
Ground, Power, Can High, Can Low.

Twisted pair is easy to find. Passenger side footwell on the right side behind the plastic trim. Or at the DME in the engine bay.

Should have just bought the MHD kit. Easy peasy install.
 

tsaulsbu

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MCS turned that blown damper around quickly and I got it back last night and installed this morning. Took the car for a long drive today, felt good to drive it again, its been sitting for the last 2 months due to weather, traveling, and broken parts. Ride quality is much better with the MCS coilovers in even if it is noticeably stiffer. I have always hated the way bmw's ride, this car is no exception. Rides a lot like my S4 does now, just stiffer and I love the way that car rides. Feels fantastic at highway speeds, can't wait to get it on track. Setup makes some noise at lower speeds, nothing at highway speeds. Mostly the dampers are noisy. I'll put some more miles on it this week, adjust the ride height a little bit this weekend and call it good until I get the verkline arms in.

Also, I installed the Rapid Designs rear diff brace earlier this week. Really nice part, love the quality and the looks. Makes a noticeable difference with shifts too and it was super easy to install with the Verus scoop.

PXL_20260721_005908523.webp


Fuel system up next.
What spring rates?
 
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Ground, Power, Can High, Can Low.

Twisted pair is easy to find. Passenger side footwell on the right side behind the plastic trim. Or at the DME in the engine bay.

Should have just bought the MHD kit. Easy peasy install.
yeah, hindsight should have looked at the install before buying. I would absolutely have bought the mhd kit.
 
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Fuel system is pretty much done, not a bad way to spend a Sunday afternoon. Really liking how easy this car is to work on. Torque sequence on the rails and injectors was annoying... I did give up on the dorch eca harness and ordered the MHD harness instead. I would have spent the day trying to figure it out and working under the dash on wiring projects is far from my favorite thing to do. I'll flash the car tomorrow and get it running. Pretty sure I can flash the flex fuel map without the eca plugged in. Verkline arms up next.

PXL_20260802_213718263.webp
 
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Full verkline suspension was installed on the car over the last month or so along with a rear sway bar and verus oil cooler. Had a shop do this since I didn't have the time to do it myself nor did I care to drop the rear subframe in my garage.

Took a long time to get all of this done, well over a month. The traction arms for the rear that I was sent were the wrong part and had to be exchanged. The tie rods had an issue where they wouldn't fit into the knuckle. Problem ended up being the finish on the spindle needing to be stripped off. Verkline's solution was to "just hammer it in there"... Anyone whose done the verkline tie rods run into this?

Got the car back last Saturday and had a problem with the car pulling right pretty hard. I first noticed it when I got about halfway home. Found a couple of things were not fully tightened down on the front suspension arms. Torqued those down and the car was pulling right still, this time the steering wheel was slightly off center when held in a position that gets the car to track straight. Gave it back to shop Monday to have it realigned. Got an update that the car is aligned perfectly on their rack again but its still pulling right. Looking like I'll miss out on the two track days I had booked for this weekend at MSRH. I would need the car back no later than tomorrow night so I can recheck all work and put miles on it before putting it on track.
 
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Car is still pulling right today so I won't be on track this weekend. Really disappointed about this and I'm out a bunch of money for the weekend. I'll likely miss eagles canyon in 2 weeks as well.

I did drive it today, it's a bit better, not fighting me to keep it straight with a slightly off center steering wheel any longer. Had a long conversation with Claude using the latest model and got a lot of really good info based on what has been tried so far and what possible causes are and provided that to the shop. We'll see where this goes.
 

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Car is still pulling right today so I won't be on track this weekend. Really disappointed about this and I'm out a bunch of money for the weekend. I'll likely miss eagles canyon in 2 weeks as well.

I did drive it today, it's a bit better, not fighting me to keep it straight with a slightly off center steering wheel any longer. Had a long conversation with Claude using the latest model and got a lot of really good info based on what has been tried so far and what possible causes are and provided that to the shop. We'll see where this goes.
If you have the space, I *highly* recommend getting a string kit. Either pre-built or building yourself. It's completely changed the game for me, saved me many times, and I no longer rely on a 3rd party. Also, with your setup, it makes alignments much easier, once you get the hang of it, than OEM parts. The learning curve is actually not steep at all. I'm an idiot and I got it pretty quickly.
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