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Lance alignment

Mr. Lance W. Recommended
Alignment

This alignment is the result of
experimentation with the factory numbers to
improve road feel and to reduce inside edge wear on the rear tires that is
common with the factory settings.  These settings will add grip at the
front
and dramatically improve the feedback to the driver in the steering wheel.
They will also reduce or eliminate inside edge wear on the rear tires, help and I
have gone as far as 24, viagra sale 000 miles on a set of Bridgestone S-02s with these
settings.  The car will still under steer slightly, but the aggressive
driver
will find much more predictable handling and significantly better feedback
from the car.  Obviously, these settings are still compromised for street
use.  Autocross, road race, and drag race competitors can use these as a
baseline, but will probably require somewhat different settings to be
competitive.

1. What is a Good
Street/Lance W. Alignment?

Front:

Rear:

  • Camber 
    -1.5 degrees

  • Toe
    in (total) 1.00 mm

(on 255/40R17 tires this rear toe
equates to .090 deg, i.e. .045 deg per side)
(on 275/40R17 tires this rear toe equates to .088 deg, i.e. .044 deg per
side)

The
Front and Rear Toe are critical to
tire wear, even small deviations from spec may cause unusual wear patterns or
excessive wear.

 

2. What is the
Stock Toyota Alignment?

Front:

  • Camber
    – 0.5 degrees +/- 0.75

  • Caster
    +3.5 +/- 0.75 degrees

  • Toe
    0.00 +/- 0.080″ (2 mm)

Rear:

  • Camber
    -1.50 +/- 0.75

  • Toe
    in (total)
    0.120″ (3mm) +/- 0.080″ (2mm)

 

 

To Calculate Degrees of Toe
When Given mm of Toe:

*Note that this is dependent upon the wheel diameter and tire diameter

Formula: Calculate the Wheel + Tire Diameter (in mm) for the
stock rear wheel + Tire
Example: (2 * tire width * aspect ratio / 100) + (wheel diameter)
= wheel + tire diameter
               
(2 * 255mm * .4) + (17 * 25.4) = 635.8 mm

Here the goal is 1 mm of total toe in. (This is 0.5 mm on the driver
rear tire and 0.5 mm on the passenger rear tire.)

We want to calculate the angle each side wheel + tire must deviate from
a line parallel to the centerline of the car.
arcsin(0.5 mm / 635.8 mm) = .045 deg
.045 deg per side * 2 sides = .09 deg total toe in

 

 

 

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