OK, I am putting together a new combo for the boat - but I don't know if I should treat the impellor like a gear ratio / stall combo in a car, or is it something different? If I get the projected curve, how can I tell what impellor would best suit the berkely 12-JC?
RPM HP TQ
2K 155 408
3K 239 436
4K 372 488
5K 472 495
5.5K 495 472
6K 501 439