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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Phasing Suspension Mods



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      08-14-2009, 10:02 PM   #1
roamer
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Phasing Suspension Mods

Gang-

I am installing a wavetrac LSD and while they have the back end apart I plan on having the M3 pumpkin bushings and M3 sways installed. Due to financial constraints I won't be able to delve into the whole gamut of M3 end links.

Do I risk grossly upsetting the balance of the car by making only these two changes? Also, is there any advantage to the larger e93 M3 sways over the e90 M3 sways?

I still plan on doing the links and strut bar, just not until the spring.

Your insights would be appreciated.

Thanks.
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      08-15-2009, 02:24 AM   #2
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Originally Posted by roamer View Post
Gang-

I am installing a wavetrac LSD and while they have the back end apart I plan on having the M3 pumpkin bushings and M3 sways installed. Due to financial constraints I won't be able to delve into the whole gamut of M3 end links.

Do I risk grossly upsetting the balance of the car by making only these two changes? Also, is there any advantage to the larger e93 M3 sways over the e90 M3 sways?

I still plan on doing the links and strut bar, just not until the spring.

Your insights would be appreciated.

Thanks.

E90 M3 rear anti roll bar is plenty. Just add the front when you can to keep everything in balance.

Last edited by HP Autosport; 08-15-2009 at 08:45 AM.
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      08-15-2009, 08:08 AM   #3
roamer
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Thanks Harold.

Will the roll bars help limit bump (roll) steer? That is my largest complaint with the stock suspension.
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      08-15-2009, 08:46 AM   #4
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Thanks Harold.

Will the roll bars help limit bump (roll) steer? That is my largest complaint with the stock suspension.
How far is your car lowered?
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      08-15-2009, 04:43 PM   #5
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Quote:
Originally Posted by roamer View Post
Gang-

I am installing a wavetrac LSD and while they have the back end apart I plan on having the M3 pumpkin bushings and M3 sways installed. Due to financial constraints I won't be able to delve into the whole gamut of M3 end links.

Do I risk grossly upsetting the balance of the car by making only these two changes? Also, is there any advantage to the larger e93 M3 sways over the e90 M3 sways?

I still plan on doing the links and strut bar, just not until the spring.

Your insights would be appreciated.

Thanks.
I think it's an excellent idea to do these mods at the same time - will certainly save yourself labour costs in the long run. I plan to do exactly the same next spring (though with a Quaife differential). From what I hear from people having installed these mods I don't believe it will upset the balance of your car - if you want to be sure, add also the front sway bar.

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      08-16-2009, 06:12 PM   #6
roamer
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Harold, I am on stock sport springs and dampers. I have found the roll steer to be excessive.
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