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| <br><img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/02.png</img> | <br><img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/02.png</img> | ||
| - | = Front Suspension = | + | = Front Suspension Modifications = |
| - | [http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/03.png page 3] | + | <blockquote><hr>For road racing, the front suspension of the race car must be modified to improve handling and maneuverability. This is done by: lowering the car (thereby lowering the center of gravity); reducing body roll by increasing roll stiffness; and, by improving high speed stability. |
| - | <br><img size=400>http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/03.png</img> | + | |
| + | Along with the above improvements, the Datsun 1200 is further modified to allow the use of superior brake components and is also converted to a fully adjustable suspension system. | ||
| + | |||
| + | The Datsun 1200 suspension, modified following the procedure in this manual, will provide the following features: | ||
| + | |||
| + | <table><tr><td width=40></td><td width=90%>1. '''Camber Adjustment''' — the front strut tower is modified to allow the camber to be adjusted as needed. | ||
| + | |||
| + | 2. '''Increased Caster''' — the tension rods are altered to provide an optimum increase in caster of 4° over stock. | ||
| + | |||
| + | 3. '''Adjustable Ride Height''' — A threaded collar is added to the strut assembly to allow the height of the car to be varied depending on track conditions. | ||
| + | |||
| + | 4. '''Lower Center of Gravity''' — The stock front springs are replaced with stiff, lower competition units that reduce front car height by 2 inches. | ||
| + | |||
| + | 5. '''Improved Brakes''' — The stock 1200 brakes are discard and the competition strut assembly is modified to accept the more efficient 240-Z disc brake components. | ||
| + | |||
| + | 6. '''Roll Stiffness''' — Replacing the stock springs with stiffer units and adding a heavier sway bar increases suspension stiffness and reduces body roll.</td><td></td></tr></table></blockquote> | ||
| + | |||
| + | [http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/03.png http://i297.photobucket.com/albums/mm219/ddgonzal/suspension/th_03.png] Page 3 | ||
| == Front Camber Adjustment == | == Front Camber Adjustment == | ||
Revision as of 11:00, 3 February 2016
Download: Datsun 1200 Competition Suspension Manual
Foreward
Front Suspension Modifications
For road racing, the front suspension of the race car must be modified to improve handling and maneuverability. This is done by: lowering the car (thereby lowering the center of gravity); reducing body roll by increasing roll stiffness; and, by improving high speed stability.Along with the above improvements, the Datsun 1200 is further modified to allow the use of superior brake components and is also converted to a fully adjustable suspension system.
The Datsun 1200 suspension, modified following the procedure in this manual, will provide the following features:
1. Camber Adjustment — the front strut tower is modified to allow the camber to be adjusted as needed. 2. Increased Caster — the tension rods are altered to provide an optimum increase in caster of 4° over stock.
3. Adjustable Ride Height — A threaded collar is added to the strut assembly to allow the height of the car to be varied depending on track conditions.
4. Lower Center of Gravity — The stock front springs are replaced with stiff, lower competition units that reduce front car height by 2 inches.
5. Improved Brakes — The stock 1200 brakes are discard and the competition strut assembly is modified to accept the more efficient 240-Z disc brake components.
6. Roll Stiffness — Replacing the stock springs with stiffer units and adding a heavier sway bar increases suspension stiffness and reduces body roll.
Page 3
Front Camber Adjustment
See main article: Camber
Adjustable Ride Height
Modified Strut Caliper Mount
Front Hub
240-Z Caliper Modification
Front Springs
Lower Link and Steering Gear
The complete lower suspension link can be left stock. The inner chassis mount rubber bushing may also be left stock since it is very rigid and deflects a minimal amount while cornering.
The complete steering linkage assembly is adequate for competition purposes. This includes the steering gear box, tie rods, tie rod ends, all steering arms, idler arm assembly and the lower ball joint.
Tension Rod and Bushing Modification
Page 11
Sway Bar Assembly
Front Competition Suspension Assembly
Sway Bar Installation
Sway Bar Adjustment
page 20 (blank page)
Rear Suspension Modifications
Rear Spring Modification
Front Spring Eye Bushing
Shocks and Reworks Lower Mount
Rear Traction Bar Mount
Front Spring Hanger Mount Chassis Bushing
Front Spring Hanger Assembly
Traction Arm Assembly
Rear Shackle
Rear Sway Bar Assembly
Rear Competition Suspension Assembly
Final Adjustments
General Handling
page 37
