FTN nozzles , how do you determine which one ?
Took new setup out and with. purple (3") nozzle , Detailed SS "A" impeller ,Stuufer plate , and HM inducer ..motor pulls 6400 easily and hits limiter but doesn't blow pump out and stays loaded . This is only with 2# boost on motor ...I plan on upping to at least 12# and limiter bumped up to 7200 or so
I have a full set of FTN factory inserts plus some custom sizes down to 2-7/8"
so so what's the skinny on picking a nozzle insert ?