Hoosierdady
Fan of wheelspeed
Hey guys, my ventures into boating have always ended up with them sinking or catching fire, melting and then sinking. I'm trying to build a dependable, fun boat to run around with and I REALLY need some help.
I picked up a Joysway Infinity offshore V-hull boat AARTR for a steal at $115 shipped! I did a lot of research and for the price and the features it was unbeatable. It's self righting which was huge for me as I suck at boating and I hate to swim
. It came with a 60a esc and a 2850kv brushless motor. Through my research I came up with a short list of mods that I did right off the bat which pushed me to just over 40mph. I'd really like to see 50+mph out of it.
I adjusted the trim tabs just a hair and installed a 120a Turnigy Aquastar ESC running a 45c 2200mah 4S lipo. I also installed a 36mm 1.4 3 blade prop as the video I watched had these exact mods and the boat seemed very fast.
So after installing these items I tried it with the trim tabs on 3S and it barely set up out of the water. I switched to 4S and it wasn't a whole lot better. I put my trim tabs back on and tried it on 4S and it was much better. But like I said, I'd like to squeeze another 10-ish mph out of it. I'm aware that I have to keep the weight of my motor as close to stock as possible to retain the self righting feature. I ordered a 38mm 3 blade prop to try next but I was thinking about trying a different motor too. My operating temps are fine, everything stays very cool. I added another pickup to get even more cooling out of it in case I want to run multiple times in the same outing. I know absolutely nothing about boats so any help or comments would be greatly appreciated.
Here are the motors options.
Stock- 2850kv and barely 4s capable Product Dimensions: 10.2 x 10.2 x 2.5 cm ; 91 g
Dr Madthrust-
Dr Mad Thrust 3300kv 1100w 64mm EDF Inrunner Motor 4s version (29mm)
Specs:
RPM/V: 3300kv
Voltage: 2-4s
Max current: 70A
Max Power: 1100 watts
Suggested Rpm Operating Range.
High Blade Count: 43000rpm
Low Blade Count: 48000rpm
Poles: 4
Diameter: 29mm
Front Mounting Hole Distance: 19mm
Shaft Diameter: 3.17
Shaft Length: 10mm
Front mount Thread Size: M3
Plug type: Bullet-Connector 3.5mm
Weight: 138g
Emax
Dimension: D27.8X36mm
Shaft: D3.175X12.0mm
Weight: 93g
KV (rpm/v): 4950
Voltage (V): 7.4-14.8
No Load Current: 3.1 Amps
Internal Resistance: 0.030 Ohms
Max. Current: 35 Amps
Or this Emax-
1x B2836-10 3950KV Inrunner Motor
B2836-10 3950KV Specification
- KV (RPM/V): 3950
- Voltage (V): 7.4-14.8
- Unload current (A): 2.1
- Internal: 0.036
- Max. Current (A):25
- Dimension: ￠27.8X36(mm)
- Shaft: ￠3.175X12.0(mm)
- Weight: 93g
I picked up a Joysway Infinity offshore V-hull boat AARTR for a steal at $115 shipped! I did a lot of research and for the price and the features it was unbeatable. It's self righting which was huge for me as I suck at boating and I hate to swim
. It came with a 60a esc and a 2850kv brushless motor. Through my research I came up with a short list of mods that I did right off the bat which pushed me to just over 40mph. I'd really like to see 50+mph out of it. 
I adjusted the trim tabs just a hair and installed a 120a Turnigy Aquastar ESC running a 45c 2200mah 4S lipo. I also installed a 36mm 1.4 3 blade prop as the video I watched had these exact mods and the boat seemed very fast.
So after installing these items I tried it with the trim tabs on 3S and it barely set up out of the water. I switched to 4S and it wasn't a whole lot better. I put my trim tabs back on and tried it on 4S and it was much better. But like I said, I'd like to squeeze another 10-ish mph out of it. I'm aware that I have to keep the weight of my motor as close to stock as possible to retain the self righting feature. I ordered a 38mm 3 blade prop to try next but I was thinking about trying a different motor too. My operating temps are fine, everything stays very cool. I added another pickup to get even more cooling out of it in case I want to run multiple times in the same outing. I know absolutely nothing about boats so any help or comments would be greatly appreciated.
Here are the motors options.
Stock- 2850kv and barely 4s capable Product Dimensions: 10.2 x 10.2 x 2.5 cm ; 91 g
Dr Madthrust-
Dr Mad Thrust 3300kv 1100w 64mm EDF Inrunner Motor 4s version (29mm)
Specs:
RPM/V: 3300kv
Voltage: 2-4s
Max current: 70A
Max Power: 1100 watts
Suggested Rpm Operating Range.
High Blade Count: 43000rpm
Low Blade Count: 48000rpm
Poles: 4
Diameter: 29mm
Front Mounting Hole Distance: 19mm
Shaft Diameter: 3.17
Shaft Length: 10mm
Front mount Thread Size: M3
Plug type: Bullet-Connector 3.5mm
Weight: 138g
Emax
Dimension: D27.8X36mm
Shaft: D3.175X12.0mm
Weight: 93g
KV (rpm/v): 4950
Voltage (V): 7.4-14.8
No Load Current: 3.1 Amps
Internal Resistance: 0.030 Ohms
Max. Current: 35 Amps
Or this Emax-
1x B2836-10 3950KV Inrunner Motor
B2836-10 3950KV Specification
- KV (RPM/V): 3950
- Voltage (V): 7.4-14.8
- Unload current (A): 2.1
- Internal: 0.036
- Max. Current (A):25
- Dimension: ￠27.8X36(mm)
- Shaft: ￠3.175X12.0(mm)
- Weight: 93g
Last edited:
