Re: Tramlining with 17's

[Daniel Chenault <DanielC@xxxxxxxxxxxxxxxxx>]

Took the words right out of my mouth. I spoke with a BMW suspension expert;
he said that the three series was designed to give the driver very good road
feedback. The more one moves away from the design spec of tire size, the
more one accentuates, or loses, that feel. This is true for most any car in
a general sense, but our suspensions were designed to be sensitive.

Grooves in the concrete, road imperfections, the road's crown, slightly
uneven tire pressure, cross-winds, all that and more leading to the feeling
that you are constantly having to correct the steering direction. It can be
real annoying and tiresome on a long drive but, overall, it doesn't hurt
anything.

- ----- Original Message -----
From: "Henry Gnad" <hsg@domain.elided>
To: <bmw-digest@domain.elided>
Sent: Monday, February 12, 2001 10:01 AM
Subject: RE: Tramlining with 17's


> I looked online for a technical definition of tramlining and failed.  My
> understanding is it is a condition that causes your car to be very
sensitive
> to irregularities in the road.  It will follow ruts like crazy.  In bad
> cases it can require steering corrections for ruts you can't even see.  It
> can be affected by things like tire pressure, alignment, tire design,
> wheel/tire size (width especially?) and other suspension setup issues.
>
> Henry
>
> -----Original Message-----
> From: Nicolas.Roman@domain.elided [mailto:Nicolas.Roman@domain.elided]
> Sent: Monday, February 12, 2001 10:34 AM
> To: Henry Gnad
> Cc: 'bmw-digest@domain.elided'; owner-bmw@domain.elided
> Subject: Re: Tramlining with 17's
>
>
>
> Guys,
>
> Pardon my ignorance but what does Tramlining mean? I own a 94 e36 and i
> have had 17" momo sports with good year tires for over a year and i
haven't
> noticed anything wrong with it....
>
> (Embedded image moved to file: pic25667.gif)
> Nicolas Roman
> Senior Engineering Consultant
> North Miami Beach, FL.
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