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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Minor suspension improvements



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      10-15-2013, 04:21 PM   #1
LAE92
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Minor suspension improvements

As I am going FBO PTF e40 protune, as well as upgrading my brakes, I would like to improve my suspension a bit. I already purchased 19" 220m wheels so I will be getting those mounted and balanced too. I am switching to 220ms because they are lightweight, and forged. I am coming from m6 reps and hate how fragile those wheels are. The easiest and cheapest way to get to 19" forged wheels was for me to buy 220m's. I am getting the fenders pulled/ shaved to account for the offsets. I was thinking about installing m3 front upper and lower control arms to help my turn in, plus a for corner alignment to get everything synced up and to get the power onto the road and get the steering dialed in.

Do you guys think I should also up the rear toe links to m3 links? Will I feel the difference? I don't want to get an LSD because it is too much money, and worry the m3 subframe bushings will cause the chassis to translate too much from the rear. Thanks for the input!
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      10-15-2013, 07:09 PM   #2
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1. What does this have to do with Autocrossing, Dragstrip, Driving Techniques?

2. Once you figure out what this has to do with Autocrossing, Dragstrip, Driving Techniques, then it'll be much easier to figure out what you need to do.
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      10-15-2013, 10:37 PM   #3
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Autocross, I do not drag at all. I am also going to enroll at willow springs for driving classes.
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      10-15-2013, 11:09 PM   #4
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Quote:
Originally Posted by The HACK View Post
1. What does this have to do with Autocrossing, Dragstrip, Driving Techniques?

2. Once you figure out what this has to do with Autocrossing, Dragstrip, Driving Techniques, then it'll be much easier to figure out what you need to do.
lol.. rough day Hack?

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Originally Posted by LAE92 View Post
Autocross, I do not drag at all. I am also going to enroll at willow springs for driving classes.
Honestly, those (or any other mods, for that matter) probably won't make any difference for you - at least not for now. Just attend one of those events, and you'll very quickly realize that either:
1) None of those are what you need, and you just need to practice a LOT more before you can even comfortably push your car as is; or
2) Something very particular is CLEARLY recognizable even to you that it needs to be improved - most likely brakes and/or tires.

If you hit #2 above, upgrade that item only. Then you go out again to find out what is limiting you next, and upgrade THAT. Then --- oh, this step is very VERY crucial in terms of your pursuit of happiness --- prepare to say good bye to any sort of financial savings or freedom for the rest of your life; you will be in the deep end in no time.

Last edited by will.c; 10-15-2013 at 11:15 PM.
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      10-15-2013, 11:12 PM   #5
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Quote:
Originally Posted by will.c View Post
lol.. rough day Hack?



Honestly, those (or any other mods, for that matter) probably won't make any difference for you - at least not for now. Just attend one of those events, and you'll very quickly realize that either:
1) None of those are what you need, and you just need to practice a LOT more before you can even comfortably push your car as is; or
2) Something very particular is CLEARLY recognizable even to you that it needs to be improved - most likely brakes and/or tires.

If you hit #2 above, upgrade that item only. Then you go out again to find out what is limiting you next, and upgrade THAT. On and on and on.
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I dont mod my cars until I have at least 1 track day on them stock. And if you never have tracked before, mods are absolutely useless (maybe not absolutely) but figure out correct form. Learn the lines of the track and start modding when you reach a limitation in your car.
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      10-16-2013, 10:07 AM   #6
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CPwinch, While i know a lot of people subscribe to this theory on this sub forum, but I am like the other 95% of the e90post members where having the car's extra performance for the occasional brisk drive is nice. However, I am not 19 anymore so I wanted to get the most out of the driving experience with my car while not jeopardizing my own safety nor the safety of others around me. the Hack was right, I should have clarified my purposes for even proposing the upgrade. I just figured since the toe links are pretty cheap and I am going to install the front control arms, I might as well get in the rear and add the toe links too. MY driving skills are far from needing them, so I will omit the upgrade until my skills get to that level. Thanks for the feedback!
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      10-16-2013, 09:34 PM   #7
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Quote:
Originally Posted by LAE92 View Post
As I am going FBO PTF e40 protune, as well as upgrading my brakes, I would like to improve my suspension a bit. I already purchased 19" 220m wheels so I will be getting those mounted and balanced too. I am switching to 220ms because they are lightweight, and forged. I am coming from m6 reps and hate how fragile those wheels are. The easiest and cheapest way to get to 19" forged wheels was for me to buy 220m's. I am getting the fenders pulled/ shaved to account for the offsets. I was thinking about installing m3 front upper and lower control arms to help my turn in, plus a for corner alignment to get everything synced up and to get the power onto the road and get the steering dialed in.

Do you guys think I should also up the rear toe links to m3 links? Will I feel the difference? I don't want to get an LSD because it is too much money, and worry the m3 subframe bushings will cause the chassis to translate too much from the rear. Thanks for the input!
DSC/DTC off + LSD + tires + driver mod = power on the ground

You can add suspension once you decide what is your intent and budget.

GL
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      10-16-2013, 11:28 PM   #8
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Thanks for all of the feedback!
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      10-28-2013, 01:31 AM   #9
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Quote:
Originally Posted by LAE92 View Post
Autocross, I do not drag at all. I am also going to enroll at willow springs for driving classes.
Let me know when you head to Willow. Might join you.
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