Just out of curiosity what is a safe limit for spinning a pump?  I'm not a jet guy obviously,  I'd spin my prop 9500 if I could I just can't afford it!!!  Lmfao

Lot depends on the build of the pump and where it looses efficiency... a double throw me down super drag nasty pump will operate in the 7800-8200 area... but that is top shelf stuff with all the tricks thrown at it. Obviously you can take a mediocre pump and turn piles of rpm as well... but the mph and et will definitely show that it is not working efficiently... as well as any data collection you may have... numbers just won't add up. Kinda like spinning the shit out of a tiny, jank prop... yeah it's spinning 9500... but the boat running 53mph is a good inducation that it may not be performing at optimal level.


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So again curiosity,  I watch a lot of the short coarse sprint boats,with nasty small blocks in them,, with the cages over them,  they are jets and a lot of them sound like they rpm like a mother#cker!  Is that a gear reduction kinda deal to the pump to make them work?

SOLD.....  Hope to see it in Needles area with a fresh 496.......

They are using Scott pumps. Different animal.

GT

Sorry to thread jack. What is a Scott pump?