[DeTomaso] steering wheel diameter

[JJD1010 at aol.com]

Torque = Radius x Force
 
So Force you feel at the wheel = Torque / Radius.
 
Going from a 13 to 14 inch wheel would make an 8% difference. Doesn't sound 
 very significant to me. 
 
Specifically, what kind of stability issues are you experiencing? 
 
Don't forget the aerodynamics of the car cause the front end get  a lighter 
as the speed goes up unless you have a good front air dam.
 

Jeff
6559
 
 
In a message dated 9/25/2010 9:04:25 A.M. Central Daylight Time,  
boyd411 at gmail.com writes:

I first  started with 5 % degrees ( after my johnny woods modification) but 
I
didn't  get the high speed stability I expected. With all new  suspension
components, new Konis shocks, new sphere ball sway bar ends  and  new wheels
and tires ( with good handling "Nitto NT-05 235xZR18 x  9 (front )effective
diameter of 25.43" and width of 9.57" and 335/30/  ZR19  ( rear)  26.89" and
width of 13.31") they have one of the  best ratings for dry performance with
performance rateings of W, UTOG  treadware at 200 traction at AA and temp at
A. diameter and characteristics  and set up for low center of gravity I
expected a much more stable high  speed driving expierienece. The all The
alignment specs camie in at or  better then expected. The only thing I couls
still think of was the small  diameter steering whell (as I said a fraction
over 13" with the leather  wrap) makes me feel that My steering wheel
movements ( especially at speed)  are having an exagerated effect on my
steering input and making the car  feel skitisch. Does this sound logical or
make sense? I remember my NSX at  150 mph felt like it was on rails ( as 
long
as the windows were closed) I  havent had the pantera over 110 Mph ( due to
no appropriate place to drive  it safely (or legally at that speed ) and I
don't feel at all confident in  the stabilty or controll at this speed even
driving in a relative straight  line. It gives m pause for concern when I
factor in the prospect of driving  a course with turns at theses type of
speeds ( or ideally faster) Has  anyone got any advice or practical input or
opinions? By the way my rack is  good  and I don't appear to be suffering
from any bumpsteer of any  significance. I am really inclined to believe 
this
is a result of the  steering wheel diameter.
Boyd

On Sat, Sep 25, 2010 at 1:48 AM,  <MikeLDrew at aol.com> wrote:

>
> In a message dated  9/24/10 21 22 14, boyd411 at gmail.com writes:
>
>
> I didn't  mind it until I modified my caster to 6.5 degrees.It makes 
parking
>  lots and three point turns tough.
>
>
> That's what too much  caster does.  6.5 degrees is really excessive.
>
>  Mike
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