Rear Spring Advantages/Disadvantages for 2550 LB Asphalt Modified

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Discussion Overview

The discussion focuses on the advantages and disadvantages of spring placement in a 2550 LB asphalt modified race car, specifically comparing the left rear spring positioned in front of the rear end and the right rear spring positioned behind the rear end. Participants explore the implications of these configurations on traction and performance, particularly during acceleration and deceleration.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant notes that the location of the spring mounts can influence spring wrap under acceleration.
  • Another participant mentions that a torque link is intended to improve traction during acceleration.
  • A participant expresses concern about traction off the turns, suggesting that the third link is meant to enhance grip but has been tested with staggered springs.
  • Specific settings for acceleration and deceleration angles are mentioned, indicating ongoing adjustments to optimize performance.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best spring configuration or the effectiveness of the third link in improving traction, indicating that multiple competing views remain regarding the optimal setup for the race car.

Contextual Notes

Details regarding the specific type of track, its size, and banking are not provided, which may limit the applicability of the discussed spring configurations to different racing conditions.

mikey531
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We are racing a 2550 LB asphalt modified. What are the advantages and disadvantages of having the left rear spring in front of the rear end and the right rear spring behind the rear end? We also have a decel/acel push/pull bar on the center of the rear end. Approximately 600 lbs of torque from the engine.

Thanks
 
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welcome...nice to meet a fellow racer..short answer is spring mount location can help a little bit on spring wrap under acceleration..torque link is to dial in hook up under acceleration as well..long answer is both questions are addresses in above post


Race car suspension Class
by Ranger Mike

rm
 
Thanks I have read the posts and the big problem we have seems to be traction off the turns. The third link is supposed to increase bite off but they have tried it with staggered springs. Here is the info.
http://www.rightfootperformance.net/tech/index_28_4121065422.pdf
We have the accel set at 14 degrees down and the decel at 5 degrees up I think. I will have to double check the angles.

Thanks for the info above!
 
Mikey
Pls post on race car suspension class so we can use as teaching point
Pls include type car type of track
Track size , banking
Etc
See you there
Rm
 
ok I will post tonight

Thanks
 

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