Bruce, my small understanding of the addition of an aftermarket rear bar
while leaving the front stock, is that the rear bar will be much stiffer
and could change the car from moderate understeer to moderate oversteer.
That's probably what the vendors are talking about.
As to your upcoming additions, I can only say that the replacement of
the bushing coupled with better springs and shocks will not only make
your car handle better, but as importantly to me, it will also make it
ride better.
Some people will say that the addition of stiffer shocks and/or springs
will make the ride deteriorate. My experience has been that it has
improved the ride.
My .02
R. Ashford Little II
www.geocities.com/ralittle2
-----Original Message-----
From: Simms, Bruce CIC [mailto:BSimms@cicorp.sk.ca]
Sent: Monday, December 23, 2002 2:39 PM
To: 'Navarrette, Vance'; 'R. Ashford Little II'
Cc: 6pack@autox.team.net
Subject: RE: over-steer, under-steer, neutral steer...thoughts,
theories, comments
Good thread. I see where Bob Laing has ADDCO front & rear sway bars. I
presume these are the off the shelf and non adjustable model.
I've been cautioned by several vendors that simply adding the rear bar
to
perform well under most conditions is difficult for a road car. They
hinted
that its one of those things that racers tune to track conditions. They
suggested that a larger than stock front bar only could be the way to go
for
the upgraded road car. Some folks gave up on the rear bar in
frustration.
I've Spax adjustable front to install, tube shock conversion, TRF Spring
upgrades f/r (not Goodparts) to install, and polys all round either
installed or to come.
Comments?
Thank You, Bruce Simms CF1941UO
-----Original Message-----
From: Navarrette, Vance [mailto:vance.navarrette@intel.com]
Sent: December 23, 2002 12:03 PM
To: 'R. Ashford Little II'
Cc: 6pack@autox.team.net
Subject: RE: over-steer, under-steer, neutral steer...thoughts,
theories,
comments
Think of it this way;
When you understeer, it is because the front tires are being
asked
to do
more work than they can handle, so they give up and slide. The way to
correct this is to get the rear tires to do MORE work, and take some of
the
work load off the front tires.
You make the rear tires do more work by adding/stiffening the
rear
sway bar. This holds the rear tires against the road more securely, so
they
can do more work and the front tires need to do less work as a result.
The outside front tire must do more work than any other tire
when
cornering. The cornering force added to the weight transfer means that
the
outside front tire is heavily loaded. In addition, the inside front tire
is
not perpendicular to the road because
the car leans when cornering.
The rear sway bar holds both rear tires more firmly on the road,
*AND* it
reduces lean. This in turn decreases weight transfer to the outside
front
wheel, and further decreases the work load on this tire.
So, the rear bar increases the work load on the rear tires, and
reduces work
load on the outside front tire. It is a double win, and higher lateral
g-forces are the reward....
Vance
------------------------------
1974 Mimosa Yellow Triumph TR6
Cogito Ergo Zoom
(I think, therefore I go fast)
-----Original Message-----
From: R. Ashford Little II [mailto:ralittle2@mindspring.com]
Sent: Monday, December 23, 2002 8:28 AM
To: 'Navarrette, Vance'
Subject: RE: over-steer, under-steer, neutral steer...thoughts,
theories,
comments
I was afraid of that Vance, but it still makes sense. Wait, no it
doesn't
now that I think about it. Wait, aw hell.
Work with me, if you have a front only sway bar, then the front will
corner
flatter. That will help the tires stay in contact better. The rears
will
have a harder time so it would seem that that would lead to oversteer.
Now, I know that I'm wrong, but I'd like to understand why.
Oh well, changing the front and adding a rear bar are on the list of
things
to do. And tires, wheels, engine, paint, and...
R. Ashford Little II
www.geocities.com/ralittle2
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