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« on: January 25, 2016, 12:35:04 AM »
I have recently completed a 25 year sanger super jet 460 rebuild, and today took the maiden voyage. 1977 It is a 12jg and had an "A" impeller and would max out at 5200 and ran very, very, well. Years ago I rebuild the motor, I had research the impeller chart and decided to go with a "B" impeller. after all this work and today it did not seem like had the snap or top end. Hey it runs good but I am thinking I went the wrong way. I figure we have 400 - 425hp maybe I should I have stuck with the "A" impeller? "Original 330 hp A impeller"
What is the rule of thumb with 50 - 100 hp? do you go down or up with hp only not increase rpm. should I have stuck with the A?
If a pump came stock with an A impeller and you build the motor for 100 200 Hp 100-300 rpm increase, what would you want do do with the impeller.. what is labor cost for new impeller install.
thanks for your input,
millmnt