![]() If that is the case, I don't see why one would necessarily suffer unbearable speed losses. So, with regards to the Flyboard impellers, could increased pump loading (or whatever the mechanism is with these duo-impellers reducing cavitation) lead to improved pump efficiency? in my case, custom repitched Solas by Impros helped A LOT to eliminate low end cavitation and vibration while still allowing to reach the rev limit with minimal top end speed loss that low end cavitation can be remedied by pump "blueprinting" (basically - keeping debris out, surfaces smooth, tolerances minimal, etc.) Cavitation is robbing a lot of power down at the low end (low speed range). ![]() If done sensibly, ECU remap/rev limit increase could be useful.Ĥ. Remapping the ECU may help with 2, before hitting the limits of pump efficiency by other factors. In its stock configuration (with a "ribbon delete" as the only engine mod) my boat's speed is limited, at least in part, by the rev limiter.ģ. With direct drive and no gear reduction, it is all about the RPMs and the pump efficiency with these boats.Ģ. What I have learned in my brief YJB ownership so far:ġ. (I also must admit to a hefty dose of fascination with that prop, that thing just looks bad a$$!) That said, capnkev has not yet tested the top end, I will be looking forward to his full report. ![]() ![]() You guys are correct about the top end speed lost - it is to be expected with the dual impellers. Lectrotab Trim Tabs w/SemiAuto MLC-1 Controller RideSteady/Hydrophase GPS Cruise Control Lucky 13 (L13) Cones Cobra Magnum AK w/MEGA Fangs, Secondary Steering Rod, EZ Locks Seadek /Full Set w/Extra Pcs WakeMakers Custom 2,400lbs Fully Integrated Ballast System w/4 Rev Johnson Pumps Wake/Surfboard XTP Racks w/Swivels Premium Sound System: Wet Sounds ICON8 Tower Speakers, Wet Sounds HT-2 Marine Amp, Wet Sounds WS420SQ Equalizer w/TalkBack Mic, 10 Polk DB651s Coax Speakers Cabin/Swim Deck, BassLink Powered Subwoofer, 2 Clarion XC1410 Marine Amps Sound Deadening System (RAAMat) Raymarine Dragonfly 5M GPS Chartplotter 150A Helm Aux 12V Circuit w/Distribution Blocks CIPA Mirror 180 Bow LED Docking Lights VHF DSC Radio/Fix Mount Antenna Secondary Bilge Pump System ProMariner Smart 2-Bank Charger w/NOCO Outlet Bumper/Fender Locks Premium Yamaha Cover Bow Stop/Stoltz Radial Tires, Trailer Mods ![]()
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