Joe Fischer, a fabricator working with chassis for Performance Unlimited, (address), Ringwood, laughed, “Once you get me talking about cars it’s hard to get me to stop.” It wasn’t just the incredible depth of knowledge Fischer brought to Performance Unlim ited’s Tech Presentation Sunday where racers and fans of the sport learned the fine art of fine tuning suspensions and steering for maximum performance, it was also the passion for the subject vividly flashing in Fischer’s eyes as he described how balancing the weight of a racecar at each tire is a process that has to account for fuel consumption, spring compression in turns and road temperatures while racing. In fact, Fischer said the timing of these factors is also crucial in racing as the goal is to have the car operating at its optimal weight and balance late in a race. “You’re not going anywhere early when the cars are all packed in tight together,” Fischer said. “You want your optimal weight late.” To achieve the optimal balanc...