[Big Dave]

Hi Chaps

Im on the hunt for some poly bushes or similar for the rear end of my car...

Ive polybushed the whole of the front suspension I now need to sort the back out.. Im finding that under hard cornering "on track" that the car moves around a lot.

So im trying so stop this with "harder" bushes...

I dont want solid bushes as ide like to keep some form of comfort....



I have polybushed the rear anti sway bar, + fitted the KLA drop links, but now need the rear beam solidify,ing.....



Any help will be greatly apreciated....

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[Eric_K]

The elephant racing poly-bronze spring plate bushings are very nice. They have worked great for me.



http://www.elephantracing.com/suspension/b...944bushings.htm



Eric

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[flash]

i have them and love them too

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[Alter Ego]

On the topic of rear end of 968s.... I have found and installed upper and lower strut braces for the front of my car. However, i have yet to see any underbody braces or other stiffening pieces in the aftermarket for the rear suspension and chassis. Does anyone know why that is? Is it a lack of location points or just lack of development?



I flip through the import tuner mags now and then and see a plethora of under body chassis braces for front and rear for pretty much all of the import cars. Why not for Porsches then? Or, more specifically 944/968s? I would think that it would be a great improvement in our cars.



Just curious. Hope this isn't too off topic.

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[Eric_K]

The massive torsion bar carrier tube pretty much ties the rear suspension together more than any brace could. About the only thing you can do is solidly connect the carrier to the chassis and add a roll cage/bar to limit whole chassis flex.

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[josephsc]

The BK harness bar connects to the B-pillar and the C-pillar. I would think that it helps to provide a little more stiffness.

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[Big Dave]

Eric + flash..

Did you notice any extra noise in the cabin of the car after the fittment of the bushes.??? OR was the ride any harsher.??

Which bushes did you fit OR, did you fit the full "system" of bushings.??



Also have you chaps fitted the solid gearbox mount that Kokeln do.??? I suspect that will tranmit a LOT more noise into the car.......

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[flash]

ok - let's start with the following:



what i have in the front is elephant racing lower control arm bushings, elephant racing castor blocks, M030 swaybar with racer's edge delrin swaybar bushings (modified), tarret engineering sway bar braces, konis and 250# springs



what i have in the rear are elephant racing polybronze torsion tube bearings, elephant racing lower control arm bushngs, carrera shocks with spherical bearings and 300# springs, M030 swaybar with racer's edge delrin swaybar bushings (modified) - the torsion bars are deleted



a quick note on springs - i am probably going to change them yet again to something even stiffer - i think i was too conservative - probably bumping up 50# on each one



i did not notice any noise from the front bushings - i defintely got noise from the rear ones though - it's not bad, but it's there



there is a very noticeable change in the feel - it is much more accurate and responsive - there is no more rebound on bumps - the impact is transmitted directly, with no loss or secondary movement that the rubber used to have - with a rubber bushing, a bump generates a compression and then a rebound - with the spherical bearings, there is nothing like that going on - this is great for me, but i am used to a much lighter and stiffer car, so bumps and jolts don't bug me, as long as the car doesn't dance - if bumps in the road and such bug you, this is not for you



i would not do the solid transmission or motor mounts in a street car - vibration transmission to the chassis will be serious - that is really a race car thing

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[TheMirror]

Good writeup there flash, useful info for me.



I wholeheartedly agree with the solid trans/motor mount combo not being good for the street, even a higher durometer STi transmission mount in my WRX was on the irritating side of livable. Took it right back out after 500 miles or so.



-Mirror

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[TheMirror]

And more on this. After a quick trip to Tahoe over the weekend, its abundantly clear my car needs a rear suspension bushing freshen up. I'd like to go factory rubber at this stage....but it doesn't appear that Porsche sells the torsion tube and lower control arm bushings. Sunset couldn't find a part number for those on the exploded view parts sheet.



Am I forced to go aftermarket with these? Are there any other bushings in the rear suspension (aside from swaybar) that should see attention "while I'm in there"?



Best,

-Mirror

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[flash]

they sell them, but only attached to the rest of the arm - the lower control arms are a grand a pop! the trailing arms are a couple hundred bucks each - this was the main catalyst in the timing of my change - no idea why they did this though - simple enough item - we really got screwed here

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[TheMirror]

OK, so aftermarket it is then.



With that in mind, I need the most streetable solutions here. Lower control arm bushings, trailing arm bushings, torsion tube bearings. Am I missing anything?



I figure the Elephant Polybronze for the torsion tube bearings, but unsure whether delrin, Weltmeister, or others would be best for the trailing arms and lower control arms.



[quote name='flash' date='Jun 12 2006, 02:57 PM']they sell them, but only attached to the rest of the arm - the lower control arms are a grand a pop! the trailing arms are a couple hundred bucks each - this was the main catalyst in the timing of my change - no idea why they did this though - simple enough item - we really got screwed here

[right][post="22719"]<{POST_SNAPBACK}>[/post][/right][/quote]

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[flash]

i have the elephant polybronze in the torsion tube, and their lower control arm bushings as well - they work well, but you definitely get more impact noise in the cabin with the lower control arm bushings - much more positive feel though



note: to change the torsion tube bushings, you are in for a major pain - it involves complete trailing arm removal, which in turn involves dropping the torsion tube and then resetting the torsion bars (unless you delete them) - all that to get to the rubber bushings that then need to be burned off - this is not for the timid

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[flash]

i have the elephant polybronze in the torsion tube, and their lower control arm bushings as well - they work well, but you definitely get more impact noise in the cabin with the lower control arm bushings - much more positive feel though



note: to change the torsion tube bushings, you are in for a major pain - it involves complete trailing arm removal, which in turn involves dropping the torsion tube and then resetting the torsion bars (unless you delete them) - all that to get to the rubber bushings that then need to be burned off - this is not for the timid

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[TheMirror]

Pretty good writeup from the Elephant site on that very process, I just found.



http://www.elephantracing.com/project/944/...ingplatediy.htm

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[FraMac]

Dave, the full cage made a huge stiffening difference to my car - crank me when you're back from le mans with Peter and I'll take you out for a blap.



atb



Fraser



(tho' not a mod you'd want for your cab)

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