i had to do some work at a place called national pump.they had impellors that were normal size all the way up 2 to 3 feet round.they have a dunk tank with all kinds of things hooked up to read pressure at all rpms.it will tell you how much water is being flowed at all times.
Depends on how many you stack together. Seen as many as 8-10. Generally, don't take as much HP as you'd expect because they turn fairly slow. 900-1200 RPM.
As a kid, I worked in a general machine shop that, among a lot of other general machining, used to rebuild pumps like this. As a first year apprentice got to clean and disassemble them. Heavy, dirty, sucky work. As you progress, you'd get to metal spray the runner necks, sleeve the wear rings, and replace all the bushings... Work like that kept me in school!!!
Originally Posted by gn7
....... David 519 is 100% correct........
Originally Posted by fuelinmyveins82
.....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....