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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Dec-17-2014, 09:31:39 PM   #1
TrueZCP
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Default PowerFlex FCAB failure in one DE

I had a set of PowerFlex FCAB bushings installed on my stock arms by a very reputable track-oriented shop. Drove it approx 100 miles, tracked it for three days (10 sessions) with no major off-track excursions, drove it back home. Noticed lots of movement upon entering my driveway. Upon inspection found the driver side inner busing completely obliterated and passenger side pretty chewed up...
BushingFailure.PNG
Anyone else experience this and know the reason? Should I try again with PF bushings or upgrade?

Anyone use these Treehouse Racing bushings? They look like a good upgrade from stock without severly curtailing my daily drivability. They are nearly triple the price of PF bushings. Are they worth it?

http://store.vacmotorsports.com/tree...px?Thread=True

Thanks!
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Old Wed, Dec-17-2014, 09:35:30 PM   #2
EricSMG
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Default Re: PowerFlex FCAB failure in one DE

Yep, lots of us have done this. Wrong material choice for that location, in my opinion. Need something not brittle.
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Last edited by EricSMG; Wed, Dec-17-2014 at 09:42:42 PM.
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Old Wed, Dec-17-2014, 09:38:33 PM   #3
dramacydal
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Default Re: PowerFlex FCAB failure in one DE

Refer to this thread: http://www.m3forum.net/m3forum/showt...highlight=fcab

A good amount of people have noted Powerflex FCAB failures. People seem to like both, OEM and/or Treehouse. Can't really go wrong, just depends how much money you want to spend.
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Old Wed, Dec-17-2014, 09:45:01 PM   #4
Drewster
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Default Re: PowerFlex FCAB failure in one DE

Yup, saw this a few times when I was searching - you can either bug PF since you have a lifetime warranty, or go with Treehouse who seems to have a better record.

How come you didn't go with the black/ race bushings?
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Old Wed, Dec-17-2014, 09:53:01 PM   #5
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Default Re: PowerFlex FCAB failure in one DE

Quote:
Originally Posted by TrueZCP View Post

Anyone use these Treehouse Racing bushings? They look like a good upgrade from stock without severly curtailing my daily drivability. They are nearly triple the price of PF bushings. Are they worth it?



Thanks!
You might try BW's in-house bushings.. essentially the same idea of Treehouse.

http://store.bimmerworld.com/bimmerw...nts-p1301.aspx
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Old Wed, Dec-17-2014, 11:10:21 PM   #6
Feuerbach86
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Default Re: PowerFlex FCAB failure in one DE

What's up!

Treehouse FTW!!!
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Old Wed, Dec-17-2014, 11:25:06 PM   #7
achilles3000
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Default Re: PowerFlex FCAB failure in one DE

Use the black series powerflex ones..
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Old Thu, Dec-18-2014, 01:12:30 AM   #8
Mr. Black
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Default Re: PowerFlex FCAB failure in one DE

If you're tracking, the TMS Delrin bushings are also a good alternative. Good Crisp feel and 0 deflection. Just make sure to use plastic bushing grease

Last edited by Mr. Black; Thu, Dec-18-2014 at 01:23:50 AM.
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Old Thu, Dec-18-2014, 01:17:49 AM   #9
bimmerfan08
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Default Re: PowerFlex FCAB failure in one DE

Quote:
LIFETIME WARRANTY

Powerflex are proud to offer a Lifetime Warranty on the entire range of products we manufacture.

We have taken this decision because of the confidence that we have both in our products and also in the way that we have handled any warranty issues in the past.

We have never had a time period based warranty policy because we have always treated issues that customers have had as an opportunity to learn.

Where a problem has occurred due to incorrect fitting, we have always asked ourselves if the reason for the error was due to poor fitting instructions.

When we have had a part failure we have tried to understand if the part was being used outside of its design parameters, perhaps on a race car running slick tyres. In cases like this, should we be offering a specific motorsport compound?

Like all manufacturing we have had the occasional material quality issue and in these cases we have always replaced parts without question.

So now we have decided to formalise our open and honest policy and boast about it!

We will replace any Powerflex product that any customer in the world is unhappy with for any reason.

The only conditions that we attach to this Warranty are:

This Warranty applies to the original purchaser.
That in the event of an issue you contact us directly at and give as much information as possible to enable us to help you. This will involve giving us details of the installation and any changes made to the car, photos of failed parts and the installation.
Warranty is restricted to the replacement of the supplied goods, but no consequential loss (e.g. carriage charges, garage labour costs, vehicle recovery, car hire, loss of earnings, etc.) from any resulting problems.
Any parts used for motorsport/competition purposes or part numbers ending ‘BLK’ are excluded from our lifetime warranty.

What we ask in return is that anyone wanting replacement parts contacts us directly and sends as much information as possible which will help us determine the reason for a problem.
http://www.powerflex.co.uk/lifetime_warranty.php

That said, I'd still go with an alternate fcab.
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Last edited by bimmerfan08; Thu, Dec-18-2014 at 01:24:31 AM.
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Old Thu, Dec-18-2014, 02:08:00 AM   #10
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Default Re: PowerFlex FCAB failure in one DE

Quote:
Originally Posted by Mr. Black View Post
If you're tracking, the TMS Delrin bushings are also a good alternative. Good Crisp feel and 0 deflection. Just make sure to use plastic bushing grease

I use the "race" version and love the feel. IMHO it's the most involved to install, as the sleeve had to be pressed on the control arm. It's the first time in 12+ installs I've ever had to remove the CA's.

Worth the effort for me!
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Discussing e46 M3 Tire Sizing Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)