31" challanger offshore build... very unuasual power

[skidooguymxz550]

good luck with the novak. if it fries make him buy u what u want. and dont forget to check after the first minute for temps.

he's not gonna be happy i think



ed- there was no smell so i think it was steam.

[ED66677]

if it's steam this means :
-water is coming in the hull, leakage somewhere?
-water is touching hot surface, ESC or motor? both won't like it!!!

I'm afraid steam will turn into smoke soon!

[skidooguymxz550]

if it's steam this means :
-water is coming in the hull, leakage somewhere?
-water is touching hot surface, ESC or motor? both won't like it!!!

I'm afraid steam will turn into smoke soon!

the water isn't no biggy. i didn't have the hatch on real well and i used reverse to avoid weeds. i know reverse is a big no no. do the barracuda esc's have reverse?

thanks for the concern

[skidooguymxz550]

WELL........................... SHE LIVES!!!!! this boat is beothcyen!!!

first, everything got aboout hottub warm. not bad at all. i'm running a 40mm prop

performance, insanely fast with great mid range torque. at 3/4 throttle she starts chine walking and when you crank it up to full it skips till it blows over luckily the landing was good.

probally about a 40mph boat

i'm already trimmed down so should i put on tabs?


my dad likes it so much he wants to fund a big cat to live out offshore racing dreams in small scale:D


this is the first hi performance thing that has lasted a whole run that i've evermade:rolleyes:

[ED66677]

where's the Center of Gravity (COG), if she blows over everytime this might need to be adjusted? move batteries on the front, 1" at a time...
that's just an idea!

[skidooguymxz550]

cool, thanks!!!!:) this boat makes me very happy. i'll grab a vid of it today

[Jeepers]

GREAT! cant wait to see the vid!

how long did you run it for? and how many cells?

[skidooguymxz550]

well, i put it in the water this mornign to run it. the steering worked but i hit the throttle and nothing. i brought it in and opened it up and smelt burnt electronics. me and my dad cracked open the speedo (source of smell) and found a row of corroded board and chips and several burnt ones. we figure water got in via the cooling system.

it ran fast for about 4 minutes on 12 cells.

but the electronics temps were fine. luke to hottub warm for everything. after a run you can keep your finger on everthing

[skidooguymxz550]

well i want to run it this weekend so i'm outfitting with my mamba.
i also took some pics of my complete interioir. i lowered the motor mount since the first pics.


i also taped on some paper to get an idea for graphics.
wadda think?

the blue is purple. the camera is just crap

[hammertime]

first gwet a better cooling jacket for the motor.......also what mamba is that......wich kv

[skidooguymxz550]

i decided i'm not gonna run it. i'll just wait for the hv to comeback. the kv is 7700

wadda ya think about the graphics?

[SJFE]

The alinment looks good. I am worried about the motor. IMO is is a little small for the package. I would go with a feigao XL. be sure and only run it for about 30 seconds before cheking your temps.

[LJH]

I personally do not think the 7700 will be long for this world in that boat. 7700KV is extremely high wind. you will have to turn a VERY small prop on a low cell count for the motor to be happy. I don't want to be a na-sayer but I also don't want to see you blow anything up.

Cheers,
Jim

[skidooguymxz550]

thanks. i decided not to use. i decided i'd just wait for my big motor to come back. no comments on the graphics?

[ED66677]

in this thread you'll see that your hull needs a 12XL that can pull 55amps max (Feigao specs), if you go for 16 cells (almost 20V) you'll pull more than 1000watts, a 700 can handle 500-600max, so that's half! choice is made!