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Can anyone tell me if a tight pump reads differently on a impeller chart than a loose one as far as H.P. goes. Also does it change if there is a stuffer installed.
 

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it will make a difference (both) how efficient your pump is and if its properly loaded vs cavitating as far as a chart that factors that i haven't seen one not to say theirs not one out there:)coffee
 

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A tight pump WILL take more hp to run
Lost 350-400 rpm after rebuilding the pump and detailing the ss impeller, gained better holeshot, top speed about the same.
Thats on my JUNK:happy:

Thats all I got
Daniel
Mash on it
 

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Discussion Starter #4
Thanks. Was just wondering. Had my motor rebuilt and pump gone thru a stage 2 with stuffer. Hole shot and acceleration great. Top increased some. Big ole "AA' SS imp. Just when I referenced the chart it had less H.P. than Before the rebuild.
 
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