Spec Racer Ford Setup Instrutions

Equipment needed:

  • Scales
  • Flat and level measurement pad
  • Caster gauge
  • Camber gauge
  • Toe bars
  • Pocket steel rule
  • Scribe / pick
  • 1/2" and 3/4" socket and impact/ratchet
  • Inboard 5/8" LCA wrench 
  • 3/8”, 1/2”, 9/16”, 5/8", 11/16” and 15/16” wrenches
  • Adjustable crescent wrench

Setup Procedure:

  1. Set tyre pressures to hot setting (26 psi for the Hoosiers)
  2. Ensure water and oil levels are topped up
  3. Fill with fuel
  4. Have ballast weight in the car
  5. Place on flat surface with scales
  6. Measure total weight of car with driver
  7. Remove driver, nose & tail (my setup is done without these)
  8. Disconnect sway bars
  9. Put the steering wheel straight ahead lock in place, use a wedge between steering column and upper frame tube
  10. Set Ride Height by adjusting spring perches
  11. Set shock rebound by using a scribe to increase/decrease (I go all the way to one end and back off from there)
  12. Set Castor by adjusting rear/forward arm link of lower control arm for the front/rear respectively
  13. Set Camber by adjusting the lower control arm rod end
  14. Set Corner Weights by minor adjustments of the spring perches (I get these within 5lbs side to side and diagonally)
  15. Install toe bars and run the strings
  16. Set Toe by adjusting the steering links at the front and toe links at the rear
  17. Check rear bump steer: by using a jack to raise the car and then measuring the toe change through the range, adjustment can be made by shimming toe links or modifying the brackets for extreme changes
  18. Check front bump steer: I don’t normally bother with front bump but the process is similar to the front except you shim the steering rack side or have the new style adjustable steering rods
  19. Re-measure and check everything one last time (large changes in caster, camber, toe or bump can mess up your earlier measurements)
  20. Reconnect Sway Bars
  21. Set front and rear sway bars

Quick Toe Check

If you have an off, hit the curbing hard or have contact you should check the toe. This can be done quickly and easily at the track with a flat surface, a set of alignment bars and a pocket rule for measuring. Make sure the steering wheel is straight and measure the difference between the alignment strings and the edge of the wheels.


Track Setups

Mazda Raceway Laguna Seca

Hot tire pressures 26 psi
Ride Height: Front 3.25”, Rear 3.5”
Corner weights: within 5lbs side to side and diagonally
Shocks Rebound (from full hard):  Front 10 / Rear 8
Castor: Front +5.5 degrees, Rear 0 degrees
Camber: Front -3.7 degrees, Rear -3.4 degrees
Sway Bar: Front 25/32” (20mm) from full soft, Rear 15/16” (24mm) from full soft
Bump Steer: Front N/A, Rear 1/32” in
Toe: Front 1/32” (0.8mm) out each side, Rear 1/32” (0.8mm) in each side

Updated: 2 June 2017

Thunderhill Raceway

Hot tire pressures 26 psi
Ride Height: Front 3.25”, Rear 3.5”
Corner weights: within 5lbs side to side and diagonally
Shocks Rebound (from full hard):  Front 10 / Rear 8
Castor: Front +6.5 degrees, Rear 0.25 degrees
Camber: Front -4.1 degrees, Rear -3.9 degrees
Sway Bar: Front 15/16” (24mm) from full soft, Rear 15/16” (24mm) from full soft
Bump Steer: Front N/A, Rear 1/32” in
Toe: Front 1/32” out each side, Rear 1/32” in each side

Updated: 20 October 2016

Sonoma Raceway

Hot tire pressures 26 psi
Ride Height: Front 3.25”, Rear 3.5”
Corner weights: within 5lbs side to side and diagonally
Shocks Rebound (from full hard):  Front 10 / Rear 8
Castor: Front +5.5 degrees, Rear 0 degrees
Camber: Front -4.1 degrees, Rear -3.9 degrees
Sway Bar: Front 25/32” (20mm) from full soft, Rear 15/16” (24mm) from full soft
Bump Steer: Front N/A, Rear 1/32” in
Toe: Front 1/32” out each side, Rear 1/32” in each side

Updated: 23 June 2017