Tuning a 3 link rear suspension for aggressive exit on 1/2 mile track

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SUMMARY

The discussion focuses on tuning a 3 link rear suspension for an Asphalt Super racing vehicle to achieve aggressive throttle exit on a flat 1/2 mile track. The current setup includes a left rear trailing arm raised by 1 inch with a 4/6 shock and a 175 spring, while the right rear is adjusted by 1 degree with a 4 shock and a 275 spring. The vehicle experiences excessive rear tire spin upon throttle application, despite good entry and center rotation. Participants suggest exploring adjustments to the pull bar and shock settings to enhance rear grip during acceleration.

PREREQUISITES
  • Understanding of 3 link rear suspension geometry
  • Familiarity with coil-over shock setups
  • Knowledge of tire dynamics and grip management
  • Experience with race car tuning techniques
NEXT STEPS
  • Research adjustments to the spring rates and shock settings for improved rear grip
  • Explore the effects of altering the pull bar angle on acceleration
  • Learn about weight distribution adjustments for better traction
  • Investigate tire compound selection and pressure optimization for enhanced performance
USEFUL FOR

Race car engineers, suspension tuners, and competitive drivers seeking to optimize rear suspension setups for improved exit performance on short tracks.

SuperTruck
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I have a Asphalt Super that has a 3 link rear suspension with coil overs. I run a flat 1/2 mile track and no matter what I do to it I can't get aggressive on exit. We are very fast and winning races but when I pick up throttle I have to roll it to a mat or it will blow the rear tires off. Entry is good and rotates in center with no wheel in it so it's definitely not a tight loose condition. Lr Trailing arm is up 1" 4/6 shock and a 175 spring. Rr is up 1 degree and 4 shock and a 275 spring. Too link is a spring loaded pull bar with 7 degrees down. Any ideas what else I can do?
 
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