I have poly front subframe bushings (front and rear) on my UrS6. It also has new top mounts, springs, dampers, LCAs, tie rods, anti-roll bar bushings, steering rods & ends, steering damper, the lot basically BUT the thing which has improved the steering response more than all these things added together is having 4 wheel tracking done by a professional. The difference is night and day, and it will cost you less than £50. Do make sure it is done by someone who knows what they are doing (not a 16 year old at kwik-fit) as the tie-rod end nuts have to be properly torqued else they will work loose. If you are unlucky you may have to replace the entire rod if the joints are seized beyond hope. I don't know if 4 wheel drive vehicles are particularly more sensitive to tracking errors but it really brought everything into focus, even the body roll was immediately noticeably less.
Interesting in C4(UrS4/6 etc.) front subframe alu bushings?
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Could you show the pictures poly rear subframe bushings?I have poly front subframe bushings (front and rear) on my UrS6. It also has new top mounts, springs, dampers, LCAs, tie rods, anti-roll bar bushings, steering rods & ends, steering damper, the lot basically BUT the thing which has improved the steering response more than all these things added together is having 4 wheel tracking done by a professional. The difference is night and day, and it will cost you less than £50. Do make sure it is done by someone who knows what they are doing (not a 16 year old at kwik-fit) as the tie-rod end nuts have to be properly torqued else they will work loose. If you are unlucky you may have to replace the entire rod if the joints are seized beyond hope. I don't know if 4 wheel drive vehicles are particularly more sensitive to tracking errors but it really brought everything into focus, even the body roll was immediately noticeably less.Comment
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They were handmade by someone in Canada from the Quattroworld forum. A few people are running them. I'll upload the pictures he took after they were made for you.Comment
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I have two sets of zinc coated steel bushings ready for you, but I need to order more of the alu-bushings. Can't order them before next week, and can take few weeks before the machine shop get them ready.
Shipping for two sets to Russia is 41 euro.
Have also plans to manufacture P&P uniball inner joints for the C4 front strut arms, but I will do a separate thread for them.Last edited by Thuppu; 8 August 2012, 16:58.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
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Bambridge on this forum makes delring bushes for the C4 rear subframe. http://www.s2forum.com/forum/showthread.php?t=37968
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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so by this you mean the inner-most bushings for the front lower control arms? powerflex makes some for the Typ44 chassis, but they still would require machining to fit the C4 chassis.
i will watch for your thread! i would be quite interested in those.
peterComment
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Yes, control arm is the right word. For the inner big end.
Something like this that would fit direct on to replace the rubber bushing. Can be that you need to weld on the cup for the uniball.

Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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that would be excellent. however... if welding is required... why not machine a whole new control arm out of aluminum and then you can incorporate spherical bearings at the outer location for the swaybar, and also a replaceable ball joint?
(like the B3/B4 front lower control arms)
peterComment
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The cups can be made to fit tight in the control arm, so small welding is just to secure the fit. I'm just not sure if all after market control arms has exact same size bushing..? Propably the billet arms would be way too expencive. The sway bar bushings could be made of polyurethane though.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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for sure, i believe powerflex makes poly bushings for the swaybar ends already. i need to confirm sizes.
i believe all of the arms, OE or aftermarket, have the same size bushings. this would be a GREAT solution - i have thought about buying the powerflex units (http://www.powerflex.co.uk/product-d...Bush/1764.html), they need to be pressed into the control arm, and the spacers would have to be machined down as they are too long. they are £55 each, though.
peterComment
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For sure can't do them under that price. Only a good quality uniball can cost that much each, plus the material and machining of the cups and bolt sleeves.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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I'll wait as you need.I have two sets of zinc coated steel bushings ready for you, but I need to order more of the alu-bushings. Can't order them before next week, and can take few weeks before the machine shop get them ready.
Shipping for two sets to Russia is 41 euro.
Have also plans to manufacture P&P uniball inner joints for the C4 front strut arms, but I will do a separate thread for them.
Comment
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Does anyone have already installed these items in the suspension?for sure, i believe powerflex makes poly bushings for the swaybar ends already. i need to confirm sizes.
i believe all of the arms, OE or aftermarket, have the same size bushings. this would be a GREAT solution - i have thought about buying the powerflex units (http://www.powerflex.co.uk/product-d...Bush/1764.html), they need to be pressed into the control arm, and the spacers would have to be machined down as they are too long. they are £55 each, though.
peterComment
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