Having problems with message search?
Hi Tim,
Actually tire pressure is a must and has
to be adjusted constantly depending on weather conditions and track
temperatures.
Just by adjusting your tire temps you can
have a major affect in the handling of your vehicle. You can cut many seconds
off of your run times just by adjusting the air pressure alone. At the very
least take a look at the sidewall to see if you’re rolling over onto the
side of the tire. Usually there’s a line separating the face of the tire
from the sidewall. Use that line as your guideline.
If you see that you’re going over on
to the sidewall bump up the tire pressure by 2lb increments. If it’s
really bad and you’re coming down half way or more down the sidewall I’d
add more pressure (5 psi maybe?) Only adjust the affected tire, do not adjust
the other tire if there’s no roll over.
If you have a temperature gauge you can
adjust your air pressure by looking at the tire temps across the face of the tire.
That’s a more advanced method of adjusting the air pressure but the visual
roll over method works great.
That being said you can also remove air
from the tire if you find that you’re not using all of the tires face as
well. In other words, you can have too much air in the tires. This would cause
the vehicle to use less than the total face of the tire and therefore reduce
your effective tire patch.
To go into more detail as to what you can
adjust it helps to know what you’ve done to the vehicle. I’m not
too familiar with CP class rules. J
George.
From:
Sent: Tuesday, June 30, 2009 4:18
PM
To:
Subject: [rrax-mustang] Guidance
with sorting out the car...
So I finally got the car out to an autocross. The idea
is to "test" it at a few local events before taking it to a track
day. There were 4 cars in CP & I managed to win the class by nearly 1/2
second. But I know I have some tuning to do.
What is the best approach to dialing in a car? It seems like starting with
major changes like the shock adjustments should be first, leaving something
like tire pressure for fine tuning. But I also have the stock sway bar in front
but a '96 bar on the rear. With stiffer springs/struts up front, is it better
to put a smaller front bar on?
Is there anyone out there that is REALLY good at this? I know the only real
answer is seat time & a stop watch. But I'm trying to use these local
autox's to get the car reasonable before going faster with it.
Thanks!
Send Email
