TNYoungblood brought up a forum in the WFL section about impellers and it got me thinking.
Most say that they see rpm drops after detailing their impellers. Say you detailed a B impeller and it gave you the rpm's of an A or AB, would you not be better off simply buying an A or AB cut impeller? If you were buying a new impeller, it seems you could get the same effects going bigger rather than buying smaller and detailing it leading to the same outcome.
Someone please educate me. Because the only areas that I would see that need detailing if you simply went with a larger size impeller would be the hub area and casting flaws or rough spots.