What would be the most powerful/fastest 4092 Leopard motor for a 44" Tunnel hull using a 300 amp ESC--I have been looking at the 930kv and 700kv--Am i looking at the correct KV area? Thank you for your Help.
What would be the most powerful/fastest 4092 Leopard motor for a 44" Tunnel hull using a 300 amp ESC--I have been looking at the 930kv and 700kv--Am i looking at the correct KV area? Thank you for your Help.
They make the same power. The rpm they spin at is different. You would base the kv on the rpm you plan to spin the prop.
Hello, With a tunnel hull i would think 25,000 to 30,000?
What voltage? 8s-10s? Application? Racing, straightline, or what? Need some context please.
"Look good doin' it"
See the fleet
10S -- Straight line-- Some Racing
Last edited by RC LOVER; 02-02-2022 at 09:20 AM.
Easy to calculate
3.8V per cell, 12 cells and 700rpm or 930 rpm per V.
3.8*12*700=~31000rpm
*930 = ~42000 rpm
Subtract ~ 10% of the rpm for loss etc, and you are pretty close.
Single motor setup = 10S or 12S battery.
10S = 950kV motor.
12S = 780kV motor.
On 12S with a 44" tunnel and the weight of batteries a 4092 will be marginal for big straightaway speeds. That said stay low on KV's 800 or less and you have the leverage to turn the larger props needed to push the hull. JMO
Mic
Mic Halbrehder
IMPBA 8656
NAMBA 1414
Wanted to go 10S
10S 1000kv or less
Mic Halbrehder
IMPBA 8656
NAMBA 1414
Like mentioned, I would run a bigger can than a 4092 for a 44" anything. That's typically 56mm motor territory if you want to be fast.
I do not think there is a lower unit and adapter that will take a 56mm Electric motor. That is why i am asking about the 2 most powerful 40mm Leopards.
A K&B lower and .187 flex won't take much more than a 4092 motor. You could go with twin outboards and 4082's
Mic
Mic Halbrehder
IMPBA 8656
NAMBA 1414
No Twin Motors
The 930kv on 8s with an octura x450 should pull somewhere around 75 amps.
That would give good runtimes. Hopefully an x450 would be enough diameter for that boat.
The graupner k series props will pull less amps that the octuras. So maybe a k series 55mm is another prop you can try.
Thanks for the Help.
Will take some adapter fabricating but...........
https://www.insaneboats.com/product/...nel-drive-unit
2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono
MHZ has the perfect solution an outboard motor but the motor is inside the hull it looks like a Seven outboard
You can consider 600 serie outrunner motors
No Outrunner
Thanks everyone--Bought a Leopard 4092 700kv from OSE--Had Steve solder on 8mm Bullet ends.
And what about the battery ? 12S ?
Yes, Will have 12S
Bookmarks