Solid subframe bushings

[Malek@MRF]

Originally Posted by Beedub

really wish they'd offer a z4m/e46 m3 solid bushing....

I'm working on it....

[tom @ eas]

Originally Posted by Beedub

really wish they'd offer a z4m/e46 m3 solid bushing....

Probably not a good idea on E46M3 since subframe cracking is already a serious issue on relatively stock configurations. I'd highly suggest reinforcement before going this route.

Z4M may be a different story, we'll take another peek under ours and see if anything can be improved.

[bryan292009]

Will be installing a KW sleeve kit with TMS solid sub frame and Delrin rear diff bushings along with RE rear toe arms and H&R rear sway bar with Dinan camber plates and rear shock mount in mid April. Install will be done by iND. Many months of planning with Andrew. I will post pics and my review once I get my car back from them on 21 April!

[Beedub]

Originally Posted by tom @ eas

Probably not a good idea on E46M3 since subframe cracking is already a serious issue on relatively stock configurations. I'd highly suggest reinforcement before going this route.

Z4M may be a different story, we'll take another peek under ours and see if anything can be improved.

yes yes yes.... please do.... looking under the z4m setup it seems pretty stout.... never seen one reported issue in the LIFE of the vehicle, not even sure the mounts need touching tbh..... report back please tom.....

[evilspiritM3]

Having both the Turner Delrin diff bushings and solid subframe mounts installed. I'll post some additional impressions once complete.

[evilspiritM3]

Originally Posted by evilspiritM3

Having both the Turner Delrin diff bushings and solid subframe mounts installed. I'll post some additional impressions once complete.

Have had these on for about two weeks now, and am happy with the improvement. The rear end feels more solid and connected, and there is less flex under hard acceleration. Much like others have said, there is some whine from the diff bushings, but I can't sense any NVH increase from the subframe mounts.

Over all, very happy with the improvement and quality of the Turner components.

[Yaw]

Originally Posted by tom @ eas

Probably not a good idea on E46M3 since subframe cracking is already a serious issue on relatively stock configurations. I'd highly suggest reinforcement before going this route.

Z4M may be a different story, we'll take another peek under ours and see if anything can be improved.

Actually it's the bushings that contributes to the failing of the weak design. Worn bushings allows the subframe to rock back and forth eventually tearing and cracking the chassis.

[Beedub]

Originally Posted by tom @ eas

Probably not a good idea on E46M3 since subframe cracking is already a serious issue on relatively stock configurations. I'd highly suggest reinforcement before going this route.

Z4M may be a different story, we'll take another peek under ours and see if anything can be improved.

did you take a peek???

[tom @ eas]

Originally Posted by Beedub

did you take a peek???

Actually good timing, the Z4M is up on the lift now.

Pieces are already being drawn up and 3D printed shortly so we can get a set made for our shop car, we'll make a separate post as we get a bit closer.

[Someone?]

Originally Posted by bryan292009

Will be installing a KW sleeve kit with TMS solid sub frame and Delrin rear diff bushings along with RE rear toe arms and H&R rear sway bar with Dinan camber plates and rear shock mount in mid April. Install will be done by iND. Many months of planning with Andrew. I will post pics and my review once I get my car back from them on 21 April!

So you ever have this^ stuff done?

[bryan292009]

Yes I had it done by iND over Easter weekend! I am very pleased with it. The rear end feels more planted although I am sure the KWs also help here. There is more diff noise as speed increases but it is not over bearing! I have actually grown to like it. The noise tapers off around 80 mph! My wife has driven the car and can tell the difference as we'll ( pertaining to the sound). The Dinan camber plates greatly increase turn in. I am overall very pleased! And as always great customer service from iND Tuning!

[Someone?]

Sweet cause IND is going to be doing my Solid Subframe bushings and i was probably going to put i some Swift springs and rear sway bar.
Do you think its worth doing the sway bar? how much are toe bars?

[bryan292009]

I got them from iND I believe they were around $295? I would upgrade since you are already paying for the labor! I already had the Dinan front installed!

[Daedalus90]

only read pages 1 and 6 and agree with evilspiritm3

I installed poly diff bushings to help with launches since i was getting wheel hop and noticed a little whine from the diff, barely noticeable.

2 weeks later installed poly subframe bushings and did not notice any more nvh, I did notice the car was WAY more planted

[pbonsalb]

Which poly?

[TurboBimmer]

A month ago I've put solid subframe bushings in my car and the difference is very noticeable over the previously installed M3 bushings. The rear feels more planted and solid, whilst the increase in NVH is actually minor. I expected it to be far worse.

Overall a very nice upgrade!

[Griff500]

Originally Posted by Autobahn335i

A month ago I've put solid subframe bushings in my car and the difference is very noticeable over the previously installed M3 bushings. The rear feels more planted and solid, whilst the increase in NVH is actually minor. I expected it to be far worse.

Overall a very nice upgrade!

Hi, did you install solid diff bushes at the same time? I'm going solid subframe but leaving the (1M) diff bushes standard. Could you elaborate on the NVH change.

I'm also looking at Ohlins R&T so your setup is similar.

Appreciate your comments.

[javarithms]

I really want to install solid bushing especially on the differential....don't want to snap the bolt and damage anything.

Any good DIY on this?