8" vs 9" vs 10" torque converter

[78boo0]

what is the diffrence between a 8,9,10" converter let just say with a 4500 stall :?: :?: :?:

 

[Robert1320]

Hp

A lower power motor will need a smaller conv due the torque multiplication. The torque multiplication is greater on the smaller units. Then you get into stall vs slip. It is the builders job to get your desired stall and still be able to limit slip and be close to lock up on the top end.