32" apparition cat help

[kfxguy]

ehhhh... not really what i would use in this hull. Id use a 40mm motor at 70+mm long. guess it depends on the speed you want.

[mattf1000]

It only for fun I'll upgrade as I go. I am hoping for 50mph+ and I hope I'm being realistic.

[mattf1000]

Powerful 4082 brushless watercooled 3.5hp, 2600Watts, 1500KV electric motor 40mm motor diameter, 82mm long, with 25mm hole centres for mounting holes. Use with a 120Amp ESC (speed controller)

Max Amps: 120A
Max Volt: 22.2V
Max Watts: 2660
Rpm/V: 1500kv
Dimension: 40mm x 82mm
Length of extend Shaft: 16mm
Shaft diameter: 5mm
Weight: 446gms
Would this be better?..

[mattf1000]

I suspect I'm p!55ing in the wind lol

[kfxguy]

You could do a 50mph setup very easily. My first time in the water mine did 62mph. If you want cheapthen a leopard 4082 around 1600kv on 6s with an x642 prop should put you where you want to be, on 6s. I try to go higher voltage with lower kv to keep current down. 6s with about an 1800-1900kv motor (with good power) will put you at 75+ with everything tuned in. Please note I've got ALOT of experiment time with this same boat. I have about half a dozen of them in my possession right now. I've got 97.5mph out of mine with no failures, so I do know a little about this hill. I don't mind helping you at all. I would recommend highly that you use quality packs (no nano techs or cheap China packs) with at least a 45-50c rating and at least 5000mah. Any less than that and your stressing electronics. Keep wires short.

[mattf1000]

.
Not as pretty as some of the work on here but it's a first attempt so I apologise

[mattf1000]

repainted after issues with reactions it's come out better than ever thought

[mattf1000]

[kfxguy]

Like good! Btw since I last posted, I did one with a castle 1515 2200kv and a seaking 180 on 4s it did 50.5mph with an x642 prop. Not breaking a sweat. I have video of it if you wanna see.

[mattf1000]

Yeah that would be cool cheers . What does the 1515 stand for. I still don't understand the numbers

[kfxguy]

1515 is a neu-castle motor. It's the size of it. It's 75mm long (castle version) and 40mm diameter. Here's a video

[NativePaul]

Neu, and Castle Creations are American companies so there sizes are in imperial measurements, the first 2 digits are the can diameter in tenths of an inch so 1.5 inches, the second 2 digits are the rotor length in tenths of an inch, again in this case 1.5 inches long.

Similar formats are used the world over with the first 2 digits describing the diameter of either the can or rotor, and the second 2 digits the length of the can or rotor. Most countries and manufacturers us millimetres though not inches, and it is more usual for both figures to be can, or both to be rotor than mixed like Neu.

[mattf1000]

Got it wet on Thursday, not brilliant couldn't get anywhere near full throttle without losing drive. Stripped it down to find the 4mm 2 piece shaft had broken. It had split the prop shaft tube where the square drive goes in. I've ripped out the stuffing tube and motor mount to replace it all with upgraded 3/16 flex, stuffing tube, strut and 3 piece motor mount, cheers Mike at Performance models for all your help.

[kfxguy]

I never use anything but a 3/16 flex. I've had .150 flex fail on the first run with a brand new rtr boat. First thing I do is make sure it has a good 3/16 flex.

[mattf1000]

http://youtu.be/k8WLMNw_5DA

This is the first video, apologies for the quality and length. It's hard to drive and video at the same time