Complex sentence: Penske and Donohue did not stop acid-dipping after the minor scuffle-the reduced weight allowed them to place weights of certain sizes in specific locations around the car, thus helping to balance the car while being driven on the limit.
Split into simpler sentences: Penske and Donohue did not stop acid-dipping after this, however. Continuing the practice of reducing the frame weight allowed them to place weights of certain sizes strategically in specific locations within the car, thus helping to balance the car while being driven on the limit.