Loose Car On Entry
- Decrease LR Shock rebound and/or increase RF Shock compresion.
- Increase the RF Spring Rate.
- Decrease the LF Spring Rate.
- Use a Larger Front Stabilizer Bar.
- Increase Pre-Load on the Stabilizer Bar.
- Decrease the Caster.
- Lower the Rear Panhard Bar on both sides (frame and rear-end attachment).
- Decrease the Rear Brake Bias.
- Decrease the Rear Stagger.
- Increase the Diagonal Weight Percentage.
- Decrease Upper Control Arm Angle on the Rearend.
- Decrease RR Trailing Arm length by 1/8 inch.
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Pushing On Entry
- Decrease both Front Spring Rates.
- Raise the Rear Panhard Bar Up on both sides.
- Increase the Caster.
- Increase the LF Spring Rate.
- Decrease the RF Spring Rate.
- Increase the Rear Tire Stagger.
- Increase the Rear Brake Bias.
- Use a Smaller Front Stabilizer Bar.
- Decrease the Pre-Load on the Stabilizer Bar.
- Decrease the Diagonal Weight Percentage.
- If the front is diving under braking then add anti-dive to front suspension. 1/2" on RF (5 degree angle of Upper A-Frame mounting bolts), 1/4" on LF, front higher than back, average bolt height the same as before.
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Loose Car On Exit
- Decrease the RF Spring Rate.
- Decrease the RR Shock compression.
- Increase Left Rear Spring Rate. No more than 10-15 pound difference, excess split makes car tight.
- Lower the Rear Panhard Bar on both sides.
- Increase the Split in the Panhard Bar Heights.
- Increase Front Stabilizer Bar Pre-Load.
- Use a Larger Stabilizer Bar.
- Increase the Angle of the Upper Trailing Arm.
- Increase the Rear Weight Percentage.
- Raise the front LR trailing arm mount. This induces rear steer when the car squats on exit.
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Pushing on Corner Exit
- Increase the RR Spring Rate.
- Use a Smaller Stabilizer Bar.
- Decrease the Pre-Load on the Front Stabilizer Bar.
- Decrease the Split on the Rear Panhard Bar Heights.
- Decrease the LR Spring Rate.
- Increase the Rear Tire Stagger.
- Decrease the Angle of the Upper Trailing Arm.
- Decrease the Rear Weight Bias.
- Lower the front LR trailing arm mount. This induces less rear steer when the car squats on exit.
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Unstable Turn Entry
- For 12 degree or more banking:
- Increase the RF Spring Rate.
- Increase the RF Shock compression.
- For less than 12 degree banking:
- Increase the LF Spring Rate.
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Push in Middle of Corner
- Eliminate Ackerman.
- Move Front Roll Center to left.
- Balance the Front and Rear stiffness. The front may be too stiff compared to the rear.
- Increase LF Spring on low bank tracks.
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Car Feels Sloppy
- Increase All Shocks rebound.
- Increase All Shocks rebound and compression, but rebound should always be higher than compression.
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Car Slows Too Much on Long Run
- Check Tire temps, if LF is coolest (unbalanced setup):
- Decrease front springs, maybe even use reverse split (LF stiffer).
- Raise the Rear Panhard Bar (both sides).
- Increase RR Spring Rate on banked track.
- Decrease soft RR Spring Split.
- Move the Front Roll Center to the left.
- Adjust Cross Weight as changes are made to keep the car neutral.
- The setup is balanced when the LF and LR tire temps are similar.
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