Presently Packing up to go for Lake Side Action at my RC Club and taking my Garmin Geko 201 for some Speed Runs. All I know is I replaced the 4-Cyinder to an 8-Cyinder Engine in comparison Watt Power and I am here are my calculations:
MABUCHI RS-550 (1634 RPMs / Volt) divided by 2.5 (Gearbox Ratio) = 653.6 RPMs/VOLT; Thereby, lets say 10-VOLTs X 653.6 = 6,536 RPMs (Dry Land)
Kyosho Endoplasma 16-Turn (3785 RPMs / VOLT) divided by 2.5 (Gearbox Ratio) = 1514 RPMs/VOLT; Thereby, at 10-VOLTs X 1514 = 15,140 RPMs
If I get to 6,000 RPMs in Water I will be very happy!