rec.autos.simulators

ICR: RE: How does camber affect ICR?

Drew A. Spenc

ICR: RE: How does camber affect ICR?

by Drew A. Spenc » Sat, 11 Dec 1993 09:06:57


writes:
>       I've been playing Indycar Racing w/ Paul Page  and I was  
wondering, what
> are the actual effects done to the handling and speed of the car when  
you
> change the toein/toeout/camber of the tires? Because I had a setup at  
MIS that
> gave me laps of 223mph and a friend of mine with a steadier hand a 226+  
lap. I
> want to go for the lap record of 230.8mph. The current toe setup was the  
one
> that the ace used. I changed tire staggers and wings to the point of no  
return
> (.135" STAGGER,3.60 degrees on the rear wing, and 3.55 degrees on the  
front
> wing) on the ford cosworth powerplant in a lola 93 chassis. Any tips on  
how to
> change the camber or other ways of success in going for the record? Let  
me know
> if you have any ideas on this track so I can help deal with the others.
>                    Jim' Da Bear ' Marusak

>            'A wanna be crew chief who's currently a weather man in  

disguise'

The way you know whether you have the correct camber or not
is to look at the tire temperatures.  If a tire is riding more
on the inside edge than the outside, the tire temps will reflect
this by reading higher on the inside than out.  This is telling
you that you're not optimally utilizing the tire.  Optimally,
the tire temperature will be consistent across the tire.  If,
on the other hand, the tire temps are even on the outside, but
different on the inside, you have a pressure problem.  Lower
temp in the middle than edges is too low pressure, higher temp
in middle means too much pressure.  You can also use shocks to
attempt to equalize temps from side-to-side.  

Drew (done 230+ at Mich. and did a 1:10.5 at Laguna with
auto-shift/manual-brake)
--
--------------------------------------------------------

'93 RS America- GP White
'82 911 SC    - GP White


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