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      11-12-2018, 08:03 PM   #11
ashiohsiao
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Drives: 2012 F20 118i
Join Date: Oct 2018
Location: Taiwan

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Quote:
Originally Posted by ovekvam View Post
I have driven quite a few BMWs the last few decades, and none of them were balanced towards oversteer from the factory. They all have some understeer unless provoked. The older modes with semi trailing arms could very easily be thrown sideways with a throttle lift or slight braking during corner entry, particularly the E21, but also E36 Compact. After the introduction of the Z axle, the willingness to oversteer has been reduced.

My two underpowered F20s have been very difficult to oversteer. I have to make a very aggressive corner entry during braking to make it happen. Fortunately it is also rather unwilling to end up in terminal understeer. Just a very slight understeer. With a square tyre setup, it is more balanced, but still understeers a bit. If I go too fast into a corner, the car ends up with a four wheel drift.

Based on my experience with chassis modification on my own BMWs, I would do the following to make the car handle better:

- Narrower rear tyres (same size in all corners)
- More negative camber up front (M4 front control arms?)
- 15 mm rear swaybar (mine also has 13 from the factory)
Oh! Forgot to mention... Shaikh did recommended me to get camber plates for the front to get more negative camber should I want even better grip~