Aftermarket gears?
Don't choose a clutch with more torque capacity than you need, as excess clutch torque capacity is counter-productive. Makes it easier to spin the tires, but overall slows the car down.
The more torque capacity a clutch has, the quicker it can pull the engine down against WOT. The quicker the clutch pulls the engine down, the more intense the impact sent to the transmission. In the example below, the input shaft saw over 1500lbs after the shift into 3rd gear while the clutch was pulling the engine down. Also notice the torque sent to the input shaft while the engine was accelerating is far less than the 425ftlbs this engine was capable of producing...
A clutch with less torque capacity would pull the engine down at a slower rate, which in-turn would reduce the intensity of the inertia spike. Basically, the same amount of inertia energy would be released, but it would be released over a longer period of time.
Grant
Don't choose a clutch with more torque capacity than you need, as excess clutch torque capacity is counter-productive. Makes it easier to spin the tires, but overall slows the car down.
The more torque capacity a clutch has, the quicker it can pull the engine down against WOT. The quicker the clutch pulls the engine down, the more intense the impact sent to the transmission. In the example below, the input shaft saw over 1500lbs after the shift into 3rd gear while the clutch was pulling the engine down. Also notice the torque sent to the input shaft while the engine was accelerating is far less than the 425ftlbs this engine was capable of producing...
A clutch with less torque capacity would pull the engine down at a slower rate, which in-turn would reduce the intensity of the inertia spike. Basically, the same amount of inertia energy would be released, but it would be released over a longer period of time.
Grant