[V8] Track F/R

[Ingo Rautenberg]

Al,

Perhaps I should have been more concise.  Correct.  You are not  
altering the suspension geometry, and depending on the new wheel  
width and wheel offset, you may not change a thing.  Effectively, you  
are really just  changing the wheel offset.  If you have a 7.5" width  
wheel with an Et35, then add a 25mm spacer, then you're looking at an  
effective ET 10 wheel :-)  Then alignment may be the biggest issue,  
as you are then changing, by definition, the track.  Don't get me  
wrong, I'm all for hubcentric spacers and filling up the wheel wells.  
I've been guilty of that, and proudly so.

Ingo

On Apr 15, 2007, at 7:42 PM, 32vquattro wrote:

> I'm not sure I agree Ingo.  Simply widening track doesn't affect  
> anything but the load on the wheel bearings. Lowering a car would  
> (and does) have an effect on the front control arm, steering  
> arm,and axle's. I have been running H&R dra 25mm spacers on a stock  
> suspension for  8 months with 18" wheels with no ill effect.  I  
> know this will change once I install my H&R race springs. To  
> counter the ill effects (i.e bump steer,tram-lining) I will be  
> installing modified camber plates to bring the camber back into  
> spec and flipping the tie rod  end 180 degrees (this should drop  
> the steering arm approx 1 1/2 inches-2inches which will put it back  
> into spec. this just leaves the axle angle  and control arm angle.  
> Not worried about the front axle's, as they are of the C.V type and  
> can deal with a 2" drop with no ill effect. Its my opinion that  
> this setup benefits will outweigh any ill effects (if any) by far. Al
> ----- Original Message ----- From: "Ingo Rautenberg"  
> <ingo.rautenberg at gmail.com>
> To: "Jeremy Ward" <jward.v8 at gmail.com>
> Cc: <v8 at audifans.com>; <J123fs at aol.com>; <David.Coleman at blackrock.com>
> Sent: Sunday, April 15, 2007 11:07 AM
> Subject: Re: [V8] Track F/R
>
>
>> Jeremy,
>>
>> Careful there, buddy! When you're adding spacers, you're effectively
>> changing the suspension geometry, even if only slightly.
>>
>> Ingo
>>
>> On Apr 15, 2007, at 11:00 AM, Jeremy Ward wrote:
>>
>>> I had been running a 15mm spacer front and rear which made no
>>> difference
>>> compared to not having spacers.
>>>
>>> I then went to a 25mm spacer up front (and kept the 15mm in the
>>> rear).  I
>>> noticed a big difference in the dynamics and the rear end now seams
>>> 'twitchy'.  Perhaps I need to adjust my Koni Sports...
>>>
>>> - Jeremy
>>>
>>> -----Original Message-----
>>> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On
>>> Behalf Of
>>> J123fs at aol.com
>>> Sent: Monday, April 09, 2007 1:09 PM
>>> To: David.Coleman at blackrock.com; v8 at audifans.com
>>> Subject: [V8] Track F/R
>>>
>>> Dave,
>>> Changing the front track to be wider will help you have LESS
>>> understeer,
>>> not
>>> more......that's why I put the spacers on the front of my car.
>>> Equalizing the track F/R is a good thing on these cars!
>>> Jack
>>>
>>>
>>> I want to avoid changing the track
>>> differential between front and  rear wheels, as this car pushes  
>>> enough
>>> for me already!
>>>
>>> Anyway, we all  have our daydreams... This is mine.
>>>
>>> Carry on  then,
>>>
>>> Dave
>>>
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>>
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>