SUBFRAME BUSHES - poly or std ??

[justin_mk]

Hi, I'm looking to change my front subframe bushes soon on my RR quattro, was planning to fit Superflex poly ones - anyone had any experience with these ?, any noticeable difference when driving compared to the originals ?, any downsides ?

Thanks for any info

[no_self_control]

they allegedly tighten up handling. i can't think of any downsides. the springs/damper/tyres should be adequate vibration attenuation. that said, the ride on my saab 95 is magic carpet quality because the front subframe doesn't directly bolt to the chassis. there are bushes. so, they might be a bit harsher. i think they also last better but i'll not swear to that one.

there was an eBay seller that sold a complete set of poly bushes for a ur-Q. they don't seem to be on eBay anymore. anyone remember who?

[filipi]

Will from VAUDIRECYCLING claims the ones he sells are the best you can get if he still offers them.
I never got to try them though since he didn't want to ship other parts I wanted to buy (Struts) to the USA .

Vaudi Recycling Solutions Home

[bambridge]

Alot of people are replacing them with Alum bushes?
If you go done this route, make sure you get the hard anodised ones?
Unfortunatly any Alum from aircraft grade HE15 & HE30 will when exposed to the elements eventually oxodise and corrode.
The best alum ones are made from HE30 because HE15 has a high content of copper and cannot be hard anodised!
S2martyn has just removed alum bushes from his ur quattro and is replacing them with hard anodised ones.

[Julian]

It's worth establishing here if we are talking about subframe mounts or wishbone bushes, these are different animals and Justin seems to have invented a hybrid!

FWIW, my money is on aluminium mounts and poly wishbone bushes. It makes the car feel like a go-cart and sharpens up the steering precision no end. But it's horses for courses, do you want an armchair special - if so leave it standard, or do you want a car for track days - is so you need solid mounts and nylon bushes... I'm half way house with mine.

[Julian]

Originally Posted by bambridge

Alot of people are replacing them with Alum bushes?
If you go done this route, make sure you get the hard anodised ones?
Unfortunatly any Alum from aircraft grade HE15 & HE30 will when exposed to the elements eventually oxodise and corrode.
The best alum ones are made from HE30 because HE15 has a high content of copper and cannot be hard anodised!
S2martyn has just removed alum bushes from his ur quattro and is replacing them with hard anodised ones.

Commercial grade (if there's such a thing) pure aluminium would do, wouldn't need anodising or protecting.

[lofty]

Originally Posted by Julian

Commercial grade (if there's such a thing) pure aluminium would do, wouldn't need anodising or protecting.

Wouldn't electrolosis (or however you spell it) still be a problem in contact with steel?

[bambridge]

Originally Posted by Julian

Commercial grade (if there's such a thing) pure aluminium would do, wouldn't need anodising or protecting.

Perhaps we should start another thread on this one, 2 anodise or not

[BasilNZ]

Urethane wishbone bushes with urethane cross-member mounts works absolutely perfectly.

[John Johnson]

superflex or polyflex?