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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, Aug-12-2009, 09:24:07 AM   #21
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Any update on the delrin piece?
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Old Wed, Aug-12-2009, 09:29:58 PM   #22
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Looking to install it after I get back in town.

Last edited by Tonester; Thu, Aug-13-2009 at 02:45:26 AM.
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Old Wed, Aug-12-2009, 11:41:21 PM   #23
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Wouldn't installing a solid mount like that in lieu of the rubber bushing compromise safety? The stock rubber is supposed to allow for the steering column to collapse in case of a front end crash, so it doesn't go leonidas in your abdomen. Of course we have no way of knowing or verifying this; just throwing out some food for thought.

IMO this is such an easy part to replace, I would just replace it with a fresh OEM one whenever necessary.
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Old Thu, Aug-13-2009, 02:45:09 AM   #24
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Quote:
Originally Posted by kaiv View Post
Wouldn't installing a solid mount like that in lieu of the rubber bushing compromise safety? The stock rubber is supposed to allow for the steering column to collapse in case of a front end crash, so it doesn't go leonidas in your abdomen. Of course we have no way of knowing or verifying this; just throwing out some food for thought.

IMO this is such an easy part to replace, I would just replace it with a fresh OEM one whenever necessary.
The steering shaft will collapse if there was a case like that.

Over time that will get expensive and time consuming, I think running an aggressive front wheel tire combo as well as driving condition accelerated the wearing of the bushing.
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Old Thu, Aug-13-2009, 02:47:53 AM   #25
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The coupling (that's what it is - not a "damper") is also there to allow for slight misalignment of the shaft and the steering rack shaft. I suspect putting a semi-rigid one in place will result in more force being applied to the input shaft of the steering rack then was intended, with possible bearing/rack failure being the result.

Just MHO..
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Old Thu, Aug-13-2009, 03:38:12 AM   #26
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Default Not to mention potential NHV

On alignment, one car may be fine, by the luck of how all the parts stack up, where the next one could be off. I expect the possibility of vibration as well.
I don't disagree that steering feel and possibly response could be better; all things that make cars more connected are trade-offs for NHV, extra stress on components.
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The coupling (that's what it is - not a "damper") is also there to allow for slight misalignment of the shaft and the steering rack shaft. I suspect putting a semi-rigid one in place will result in more force being applied to the input shaft of the steering rack then was intended, with possible bearing/rack failure being the result.

Just MHO..
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Old Wed, Sep-09-2009, 08:37:31 PM   #27
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FYI, the coupler is like that to prevent the steering rack from being speared into the drivers chest. The steering shaft actually doesn't collapse very much.

All modern cars with a low mounted rack and pinion have a sacrificial mount like that to allow the shaft to completely seperate in a big crash that grabs the (very low mounted) steering rack and pushes it backwards along the underside of the car. Porsches have a particularly elegant solution, starting in the 60's and continuing through today.

There are some very clever solutions for this out there, that still allow the steering column to separate, but they are not publicized.
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Old Sat, Jan-15-2011, 10:35:39 PM   #28
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Default Re: My solution to acheive a more crisp steering response

on the collapsing of the shaft thing...


i was just under the car not long ago to replace my coupling with OEM one.
so everyone knows, the steering column is made out of 3 parts and will collapse with even a slight movement up towards driver in ratio 3 to 1. i could see three parts that collapse in one, moved it myself and was pretty impressed of the design... relax and drive!!!
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Old Sat, Jan-15-2011, 10:57:27 PM   #29
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Default Re: My solution to acheive a more crisp steering response

Love my Ground Control Urethane / Aluminium hybrid FCABS myself.
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Old Thu, Jan-10-2013, 02:00:16 AM   #30
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Default Re: My solution to acheive a more crisp steering response

Anyone have tonestors info? I like these delrin guibos
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Discussing My solution to acheive a more crisp steering response 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)