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      12-20-2009, 10:22 AM   #1
JCz04Bimmer
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Drives: 06 Z4MC
Join Date: Feb 2008
Location: New York City

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Z4MC: Aligned and Corner Balanced w/ TCKline Suspension

So I just had the car corner balanced this Friday and wanted to share my numbers. I weigh around 165lbs so that's the ballast they put on the driver's seat...

Total Weight: 3444
LFront: 865
RFront: 840
LRear: 883
RRear: 856
Cross: 1721--1723 (50%)
Rear: 1738 (50.4%)
Front: 1748 (50.7%)

I'll post pictures of the drop as soon as there isn't 10 inches of snow on the ground but the ride height was set at around 25.5" - 26" to start. Interestingly, at around those ride heights, the corner weight percentage was 49.2% which is impressively close. Likewise, check out those Front/Rear numbers! You've gotta admire BMW's from-the-factory balance.

The car was also aligned to the following STREET specs...

Front Camber: -1.25
Rear Camber: -2.20
Front Tow-in: .07
Rear Tow-in: .20

When I go to the track, I'll be using camber and toe gauges to get around -3.5 of camber. We had hoped to set the camber and toe at a point for street driving that also allowed me to simply click the camber in to the maximum at the track but, upon doing this, the toe obviously goes way out to a point that wouldn't be ideal. I think if I play with it, I'll be able to find those street camber and toe numbers to allow this. We just didn't have the time to fiddle with it.
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