Rear of car "rubbery" under hard acceleration?

[Chunner]

Originally Posted by lowbudgethero

I got subframe bushing inserts and the rear guide rods from the 1m/m3, when I install I'll let you all know how well it gets rid of the rubbery rear end. My friend with a full KW coilover setup fees better than mine, but I wanted to keep the ride and the ground clearance (because the roads I drive on suck) so I'm went a different route. I have PSS 225/255 tires on the stock wheels and a custom flash tune which is ~350whp.

can you take a picture of those rear rods? also, what are the part numbers?

Thanks!

[CAVU]

Originally Posted by Chunner

Rick, the M3 bushings completely transformed my car. It feel so much more planted and stable over everything. I feel so much more confident. The slop I am referring to is only under WOT in a straight line. I would say the M3 bushing took care of about 80% of the original rear end slop. I am thinking the other 20% can be fixed by replacing the hollow tear toe links with solid ones.

But remember, I'm trying to put down 408 lbs of tq while you are putting down 317 lbs of tq. My complaint could be related to the amount of tq I am trying to stick.

Also, I am still on the OE run flats and believe it or not, actually like the run flats now with those m3 bushings. I have the 225 & 255 MPSS in my garage and they will go on in the spring but I wanted you to know that my runflats are still on the car.

I still recommend every enthusiast change out their OE subframe bushings for the m3 ones. The car is that much better with them. Still worth every penny.

Just do it!!!

Ahhh... my bad... I screwed that up. I misread your post and thought you already had the Performance Suspension. After re-reading the entire thread, I'm convinced more than ever I need to address the rear bushings.

[gregthegr8]

Originally Posted by RickMsport

Ahhh... my bad... I screwed that up. I misread your post and thought you already had the Performance Suspension. After re-reading the entire thread, I'm convinced more than ever I need to address the rear bushings.

I'll chip in $12 towards this if you go ahead and do it for what it's worth. =)

[Chunner]

Originally Posted by gregthegr8

I'll chip in $12 towards this if you go ahead and do it for what it's worth. =)

Rick, Greg is waiting on us... Send him the bill. Just do it!!!

[gregthegr8]

Originally Posted by Chunner

Rick, Greg is waiting on us... Send him the bill. Just do it!!!

Well, I also could easily have it done in the next few weeks as well. I just don't think it's as worth it in my case since I don't have quite the power you're putting down, don't think I push the car quite as hard as Rick, and am not having any bad feelings I want to remedy.

I'll gladly put $12 towards your performance suspension as well, which I still think is the biggest transformation you can make/do.

[heeblet]

Doing me bushings this week - had to rent the tool from HP Autowerkes and it'll probably be 8-10 hrs of $$$ labor. I have high hopes and will report back.

Losing the RFT's made a big difference as well already.

[lowbudgethero]

Originally Posted by Chunner

can you take a picture of those rear rods? also, what are the part numbers?

Thanks!

I can take pictures when I do the install

This is for the OEM parts
http://www.hpashop.com/BMW-Rear-Guid...kit-e9x-m3.htm
http://www.hpashop.com/BMW-Rear-Uppe...r-link-kit.htm

http://www.ecstuning.com/BMW-E82-135...ade/ES2622630/

This is for the "aftermarket" TRW ones, (has the M logo ground off).

http://www.ecstuning.com/BMW-E82-135...ade/ES2622633/

I went for the aftermarket kit