Poly Bushings - IE or AKG

[themitchster359]

My shop told me that my rear subframe bushings are shot to shit, and that they need replacing. The rubber is almost none existance, and I can't even get on the car without the rearend flopping all over the place.

I have read a little bit about replacing them with ploy mounts. I am just gonna replace the subframe and trailing arms as well. What brand would you guys prefer....IE or AKG?

Also, if I choose AKG, what hardness? Would my car feel stiff as a rock with the 75d in the rear??

Thanks.

[whiltebeitel]

I'd lean towards AKG myself, not based on any real hard data, but just from handling IE and AKG parts. After riding in a car with polyurethane bushing in the back, it's not harsh, just connected. The rear is much more communicative.

[nando]

the AKG 70a bushings are softer than IE "green" subframe bushings, FYI.

75D is pretty well solid. If it's mostly a track/fun car I don't think it would be a problem, but otherwise I would go for the 70a or the IE greens as a compromise.

[themitchster359]

I'd lean towards AKG myself, not based on any real hard data, but just from handling IE and AKG parts. After riding in a car with polyurethane bushing in the back, it's not harsh, just connected. The rear is much more communicative.

do you know what hardness you have with akg?

[themitchster359]

fyi, i do autocross my car about 6 times a yr...and i don't necessarily mind a stiffer feel, but i dont want my car buzzing like crazy...

[Aptyp]

From experience, IE.

Had a thread going on all of this. http://www.r3vlimited.com/board/showthread.php?t=133400

[Aptyp]

Oh and if you want, I have PowerFlex subframe mounts and diff mount left over. Brand new, in pouches. I was planning to put it up for sale soon. $140 plus shipping and they're shipped to you.

[nando]

fyi, i do autocross my car about 6 times a yr...and i don't necessarily mind a stiffer feel, but i dont want my car buzzing like crazy...

then you'd want AKG 70a (softest) or IE. 75D is nearly solid like I said.

[slow e30]

what exactly is a "fun"car? i drive mine MAYBE 3 times a week... and when i do, oh baby i make it feel like a racecar. (red-line on the onramps, floor it through the no speedlimit area nearby and occasional soso drifto fun. so the 75a should be a good setup?

[themitchster359]

lol, well i daily it every freaking day, i have driven it 23k in one yr. i think im gonna go ie or bma. akg seems alittle much for me.

[themitchster359]

Oh and if you want, I have PowerFlex subframe mounts and diff mount left over. Brand new, in pouches. I was planning to put it up for sale soon. $140 plus shipping and they're shipped to you.

what's the rating on your bushings? i might consider...wha'ts the lifeline on these? i don't want this shit hardening up after 2-3 yrs.

[NC325iC]

i have ie suspension bushings and they seem to be fine

BUT their trans and likely motor mounts i dont like, they dont clean the urethane froom the threads before they send them to you, ive had 2 of the plates inside the uretane brake loose so ive had to cut the nuts off. just not good imo

[Aptyp]

Subframe ones are 95A. They are very stiff, but I am having no issues daily driving it for quite some time now, I haven't taken car to any sporting events since I put them on.


I have IE motor and trans mounts, they haven't broken yet, but now I am worried.

[themitchster359]

im gonna go with a different brand when it come to motor tranny mounts. man, this is a hard decision!

[whiltebeitel]

Support the Vorshalg guys in Dallas with the engine mounts! ;)