|There are all sorts
of alignment settings that some
will argue will make your car
perform better. Remember that the
1970 Mustangs were designed with
a particular suspension geometry
and room for improvement is
limited to that design, save for
replacing original parts with
aftermarket items. So in dealing
with the original suspension,
there are some very
straightforward procedures that
will definitely improve the
handling of your Mustang.
The wheels are aligned using
three main settings: Caster,
Camber, and Toe-In.
Caster is movement front or back
of the wheel to the frame.
Positive caster moves the wheel
rearward, negative caster moves
the wheel forward.
Camber is the tilt of the top of
the tire inward or outward within
the wheel opening. Positive
camber tilts outward, negative
camber tilts inward.
Toe-in is the distance between
the very front of each tire.
|1. Lowering the
upper control arms by 1 inch is a
common practice now, thanks to
Carroll Shelby and the GT 350s
back in 1965. This lowers the
front end but also, and more
importantly, lowers the center of
gravity for better cornering.
Many engineers feel that 1 inch
is all that should be used,
stating that the suspension was
not designed to handle any more
drop than that. This also however
changes the way the suspension
works and varying the alignment
specs from stock helps this
modification to work better.
Sometimes the coil springs are
actually cut to lower the front
end. This doesn't really work the
same and the spring tension is
increased, making for a rougher
ride. To lower the upper control
arms, drill two holes 1 inch
below and the same size as the
existing holes as shown above.
2. Caster should be set to
between 0 and 2 degrees positive.
Caster is what makes the steering
wheel want to return to center
after a turn. The more caster you
have, the more the wheel wants to
return to center.
3. Camber should be set to
between 1/2 to 1 degree negative.
This tilts the top of the tire
inward and gives the car a more
aggressive ability to corner.
Basically this puts more tire on
the road in a turn than the stock
4. Toe-in should be between 1/8
inch and 3/16 inch.
With these settings and
modifications, you will have a
safer and much better handling
|The basics of sway bars and
springs is fairly simple. It just takes
some trial and error sometimes if you
want the best handling for your Mustang.
|If the car
pushes or plows through corners
- Reduce front spring rate
- Reduce front sway bar size
- Increase rear spring rate
- Increase rear sway bar size
If the car
wants to swing the rear loose in
- Increase front spring rate
- Increase front sway bar size
- Decrease rear spring rate
- Decrease rear sway bar size