The BMW UUC Digest Volume 2 : Issue 638 : "text" Format Messages in this Issue: Re: Eurethane suspension bushings Re: Eurethane suspension bushings Re: Eurethane suspension bushings Re: Eurethane suspension bushings Re: Eurethane suspension bushings Re: Eurethane suspension bushings Re: Eurethane suspension bushings "Friends don't let friends install polyurethane bushings" Re: "Friends don't let friends install polyurethane bushings"
---------------------------------------------------------------------- Date: Fri, 29 Apr 2005 21:22:49 -0400 From: "KMS- Brett Anderson" <[EMAIL PROTECTED]> To: "UUC Digest" <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> An issue with "U"rethane bushings that everyone fails to take into account is the degradation in spring rate. Replace your control arm bushings with urethane and leave stock springs and shocks in the car and you've just done the equivalent of putting softer springs in your car. Yeah, there's an upgrade for ya. Urethane inserts in a stock bushing are a different thing entirely and shouldn't be compared with the general inability of urethane to do the job for which it's sold. If you have a street car, use rubber. If you have a race car, use metal. Brett Anderson KMS > -----Original Message----- > I do think that there is different manufacturer of urethane > bushings for the > E34... this one might be just a bad one. > I have a set that is working great on a 535i turbo (300+ RWHP) > that is going > often on the track and they are not behaving in the way shown in > the movie. > > This is just a poor designed set. I personnaly was running 750i bushings > with delrin inserts that made them close to imposible to move. > So let's not just fire on all urethane products. ------------------------------ Date: Fri, 29 Apr 2005 21:18:26 -0500 From: Jamie Howton <[EMAIL PROTECTED]> To: KMS- Brett Anderson <[EMAIL PROTECTED]> Cc: UUC Digest <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> Brett, Is it your opinion that all urethane applications are inappropriate? My M3 has mostly Ground Control spherical bushings except for the urethane subframe mounts which I just installed. It also has the TC Kline "Trackline" shocks and springs. I use the car for mostly track events and am still on street tires although I do drive it on the street from time to time. Have you seen problems with the urethane subframe mounts? They sure made a difference in the handling over the worn out stock ones. -- Jamie Howton 2000 M5 1995 M3 Hampshire, IL ------------------------------ Date: Fri, 29 Apr 2005 22:33:11 -0400 From: "KMS- Brett Anderson" <[EMAIL PROTECTED]> To: "UUC Digest" <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> > They sure made a difference in the handling over the > worn out stock ones. And therein lies the truth behind the popularity of this garbage. Hands up all those who have replaced brand new rubber bushings with eurethane? Anyone? Bueller? Change a worn out rubber bushing with a block of wood and it will make a noticeable improvement. Doesn't mean it's right, or even good. Brett Anderson KMS ------------------------------ Date: Sat, 30 Apr 2005 00:14:46 -0700 From: Ping Gordo <[EMAIL PROTECTED]> To: "KMS- Brett Anderson" <[EMAIL PROTECTED]> Cc: "UUC Digest" <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> Wha?!?! Who?!?!? I used maple and it handles like brand new!!! Whatcha talking about, Brett? Pingger<------Loves anything made of maple On Friday, April 29, 2005, at 07:33 PM, KMS- Brett Anderson wrote: >> They sure made a difference in the handling over the >> worn out stock ones. > > And therein lies the truth behind the popularity of this garbage. > > Hands up all those who have replaced brand new rubber bushings with > eurethane? > Anyone? > Bueller? > > Change a worn out rubber bushing with a block of wood and it will make > a > noticeable improvement. Doesn't mean it's right, or even good. > > Brett Anderson > KMS > > > Search the > ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > > _______________________________________________________________________ > ___ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW > CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com > ------------------------------ Date: Sat, 30 Apr 2005 09:56:43 -0700 From: <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> Brett - I'm curious about this myself, it seems many BMW Club racers run Powerflex bushings, which I believe are urethane. I'm one of them - spherical bushings all round in the rear, but Powerflex subframe bushing. Problem? thx, Joe ----- Original Message ----- From: "Jamie Howton" <[EMAIL PROTECTED]> To: "KMS- Brett Anderson" <[EMAIL PROTECTED]> Cc: "UUC Digest" <bmwuucdigest@uucdigest.com> Sent: Friday, April 29, 2005 7:18 PM Subject: Re: [UUC] Eurethane suspension bushings > Brett, > > Is it your opinion that all urethane applications are inappropriate? > My M3 has mostly Ground Control spherical bushings except for the > urethane subframe mounts which I just installed. It also has the TC > Kline "Trackline" shocks and springs. I use the car for mostly track > events and am still on street tires although I do drive it on the > street from time to time. Have you seen problems with the urethane > subframe mounts? They sure made a difference in the handling over the > worn out stock ones. > > -- > Jamie Howton > 2000 M5 > 1995 M3 > Hampshire, IL > > Search the ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > > __________________________________________________________________________ > In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate > Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ Date: Sat, 30 Apr 2005 10:16:48 -0700 From: "Reed Nicholson" <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> I'm guessing that Brett's point was that we tend to replace worn out stock components with new aftermarket components, and then jump to the conclusion that the aftermarket part is better than stock, when it only demonstrates that the aftermarket part is better than the WORN OUT stock part. We might have been just as happy with a new stock part. But I'm sure he'll speak for himself!;) Reed/Seattle > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Saturday, April 30, 2005 8:57 AM > To: bmwuucdigest@uucdigest.com > Subject: Re: [UUC] Eurethane suspension bushings > > Brett - > I'm curious about this myself, it seems many BMW Club > racers run Powerflex bushings, which I believe are urethane. > I'm one of them - spherical bushings all round in the rear, > but Powerflex subframe bushing. > Problem? > thx, > Joe > ----- Original Message ----- > From: "Jamie Howton" <[EMAIL PROTECTED]> > To: "KMS- Brett Anderson" <[EMAIL PROTECTED]> > Cc: "UUC Digest" <bmwuucdigest@uucdigest.com> > Sent: Friday, April 29, 2005 7:18 PM > Subject: Re: [UUC] Eurethane suspension bushings > > > > Brett, > > > > Is it your opinion that all urethane applications are inappropriate? > > My M3 has mostly Ground Control spherical bushings except for the > > urethane subframe mounts which I just installed. It also > has the TC > > Kline "Trackline" shocks and springs. I use the car for > mostly track > > events and am still on street tires although I do drive it on the > > street from time to time. Have you seen problems with the urethane > > subframe mounts? They sure made a difference in the > handling over the > > worn out stock ones. > > > > -- > > Jamie Howton > > 2000 M5 > > 1995 M3 > > Hampshire, IL > > > > Search the > > ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > > > > > > ______________________________________________________________________ > > ____ In memory of Michel Potheau - friend, enthusiast, > founder of the > > BMW CCA. > > > > UUC Motorwerks - BMW Performance Fine-tuning and home of > the Ultimate > > Short Shifter - accept no substitutes! > > 908-874-9092 . http://www.uucmotorwerks.com > > Search the > ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > > ______________________________________________________________ > ____________ > In memory of Michel Potheau - friend, enthusiast, founder of > the BMW CCA. > > UUC Motorwerks - BMW Performance Fine-tuning and home of the > Ultimate Short Shifter - accept no substitutes! > 908-874-9092 . http://www.uucmotorwerks.com > ------------------------------ Date: Sat, 30 Apr 2005 18:57:15 -0400 From: CsWs <[EMAIL PROTECTED]> To: UUC List <bmwuucdigest@uucdigest.com> Subject: Re: Eurethane suspension bushings Message-ID: <[EMAIL PROTECTED]> Brett's point is that he doen't like Urethane and doen't want another car in his shop with a broken bushing. Personally If you are running Poly on a street car you have to watch it and make sure you keep it greased. I am not totally inclined to agree that all Poly is softer than the stock rubber as Poly can be made in different consistancies. -- Karl #747KP www.elephantmotorsports.com ------------------------------ Date: Sat, 30 Apr 2005 18:16:05 -0400 From: "Mike Katsoris" <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Subject: "Friends don't let friends install polyurethane bushings" Message-ID: <[EMAIL PROTECTED]> I can vouch for the opinion that urethane bushing are lousy for street driving. My 95 M3 went through a set in six months with the white delrin insert falling out of the center and the hole egging out something terrible. I wouldn't listen to the techs I knew either. I am now a happy camper with the stock 95 M3 bushings. I just thought of a new catchphrase for this: "Friends don't let friends install polyurethane bushings" 76 2002 95 M3 04 R1150RT Mike ------------------------------ Date: Sat, 30 Apr 2005 15:37:07 -0700 From: JKerouac <[EMAIL PROTECTED]> To: bmwuucdigest@uucdigest.com Subject: Re: "Friends don't let friends install polyurethane bushings" Message-ID: <[EMAIL PROTECTED]> What about Delrin as a bushing material? Barry Mike Katsoris wrote: >I can vouch for the opinion that urethane bushing are lousy for street >driving<....> >"Friends don't let friends install polyurethane bushings" > ------------------------------ End of [bmwuucdigest] digest(9 messages) **********
