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Old 07-20-2016, 09:49 PM   #2978
Shankenstein
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Quote:
Originally Posted by ajc209 View Post
I have a question regard corner weight/balancing.
...
Front left: 370kg Front right: 410.5kg
Rear left: 282kg Right Rear: 317kg
...
So my question is this. Is it not better to add preload on the drivers side to even up bump travel, then adjust shock lengths to balance the cross axis corner weights?
Many thanks for your time
@Racecomp Engineering
Based on the method outlined in Autocross to Win (LINK to FarNorthRacing's site), you'd benefit from slightly raising the Front-Left and Right-Rear corners. Considering that you only need to add 3 kg to each wheel, and a healthy human can lose ~3 kg in water weight during a track day... I'd enjoy this as a learning exercise, rather than something that will meaningfully change the car's behavior.

As a side note, it would take a 91 kg weight shift (front-to-rear) to reach a 50/50 weight balance. Others can probably chime in about how much weight they can move using ride height and preload. Based on my calculations, that would require 17 degrees of rake (front-to-rear angle of tilt)... which is probably more than Ohlins designed for.
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