Thread: Impeller/Pump Advice
02-04-2015, 06:48 AM #1
I've done tons of searching and there are just so many options for impeller/pump setups.
I have a 2013 FZS with mods in the sig: C3 wheel, R3 flash, type 14 intercooler, BOV, R&D grate, VX plate, 13/23 Pro Pitch in the stock pump.
I am over 300lbs and have done a little over 81mph on GPS with this setup at around 8600rpm. The issue is it cavitates very badly out of the hole.
I don't even think I've maximized my setup as far as top speed goes. I think with some tweaking I could see 82-83mph, which I think is awesome considering my weight. I'm willing to lose a little top end for a better hole shot. Ideally if I could have zero cavitation and have the boat leap out of the water and still hit 80mph on a perfect day with low fuel, I'd be thrilled.
So options... right now I'm debating either a 2014+ liner and oem prop or a twin prop in the stock pump. I don't really know where to start for pitch on the twin, for the 14+ oem I'm thinking of starting around 13/18.
Any thoughts? I'm also still on the stock nozzle, etc. I really don't want to go to a bigger wheel either.
02-04-2015, 09:53 AM #2
Adam, the Lucky 13 adjustable pump cone is a must have item for any modified ski and it will solve your cavitation issue and provide increased performance across the board.
Have a look at it here in the store
02-04-2015, 11:20 AM #3
I've thought about that as well Jerry. I'm assuming I'd also most likely have to open up my nozzle during the tuning process? Maybe I would purchase a spare nozzle to have on hand as well. I cannot repitch myself, so I would prefer to stay away from that if possible. I would not mind revving a bit higher than I currently am either. I should also mention that I currently have an R&D cone in there.
02-04-2015, 03:51 PM #4
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