3674 2200kv motor wire hot. help

[martin]

Yep you have a very short jacket on the motor but worst of all you should take the water in to the jacket in the lower nipple & out the higher one (the way you have yours the jacket dosnt fill with water before it exits. As said you should also cool the esc first then the motor.

[Heaving Earth]

What is your timing set at?

[hnm738]

I had a run today and the Caps on the esc was 190f after 3mins run, esc body and motor were just warm. I think I need a better esc

[lenny]

What make 120a esc is it and did you change the connector to 5.5 bullets yet ?

You can always add more caps to the esc to help with heat if you need to,
I just added one to my seaking 120a esc for my modded 36"shockwave to fe.

Also did you get any video of it running yet ?

What is the timing set at on the esc ?

What make are they cells ?

Are you running in parallel with the 4s packs or just a single pack,
And how many minutes of run time are you getting on the 4s 30c 5800mah cells ?

[hnm738]

I just ordered 6mm bullets should be here in 2 weeks, still have the 5mm ec5 connectors

the esc im running is hobbyking 120a http://hobbyking.com/hobbyking/store...C_4A_UBEC.html

I don't have a programming card so I don't know what timing it has?

I run just a single 4s and the batteries are again from hobbyking "zippy" brand, im getting around 4mins but I always bring the boat in below the LVC kicks in to check on the temp etc.

no vidoes unfortunately.

[lenny]

You only needed the 5.5 bullet and you should get a program card for the esc to set it up right.
Because you do not know where anything is set at on that esc,
And that is a bad thing not to know.
Save your self some money and get the 5.5 and and the card for the esc,
For 6.25 or burn things up.

[iop65]

those esc's are set with a 15° timing in the factory
that is to high for a 4-pole inrunner ,use something like 5-7°

[Heaving Earth]

It's not a question of poles as much as wind type.
Your motor is a d wind so you want 0-3 degrees. 15 is gonna be way too much and cause heat issues.

[hnm738]

today I tried a different esc I had lying around. it is 125a esc, this esc has the correct timing on default.
http://hobbyking.com/hobbyking/store..._125A_ESC.html
I installed 2 caps 35v 1000uf

ran for 3mins and then got stranded in the middle of the pond, after retrieving the boat, the ec5 connectors between the battery and the esc melted and welded together, the negative lead unsoldered itself.

[tlandauer]

I had a run today and the Caps on the esc was 190f after 3mins run, esc body and motor were just warm. I think I need a better esc

[ATTACH=CONFIG]99390[/ATTACH]

on the m445 the motor and esc and caps were roughly 120F, the motor wire is 165F, Lipo batteries were 140F

esc to battery wire is about 10cm and battery also has about 10cm wire

I did try to shorten the motor wire, when I cut the plastic covering, the wires had a red tint on it and I couldn't solder on it so I just left it.

4s batteries, im running everything with ec5 5mm connectors (motor 3 wire is ec5, battery/ esc is also ec5) i'll try to get some pictures tonight.

my boat is about the size as the pursuit, the only difference is it run much wetter than a pursuit due to weight, most of the hull is still in the water at speed, where as the pursuit is usually 1/3 in the water at speed.

190* (F)on the cap after 3 min. is extremely hot, mine bulged at 160* (F) and that is after 6 or 7 min., you correctly identified one of the reasons which is the boat is running heavy and running wetter than most non-scale FE hulls. More drag = more amp draw=more heat.
If your Lipos are at 140* (F), they are way too hot.
When you say warm (ESC body and motor), keep in mind that these places cool down before you are able to get to them, by the time you get the boat out of water and open the hatch, they are going down temp wise. The caps retain their temp longer.
Maybe your motor can take the heat, but the amp draw is heating up the rest of the system. You need to prop down or change to a lower kv motor, this is like putting a small engine in a heavy/large car and you need to run in 3rd gear just to stay on the highway, it will over heat, along with many other unpleasant discoveries.

[hnm738]

I currently like the speed this boat is getting with the 2200kv and 45mm prop

if I purchase this 200a esc will it solve the heating problem?
http://hobbyking.com/hobbyking/store..._125A_ESC.html

[tlandauer]

I currently like the speed this boat is getting with the 2200kv and 45mm prop

if I purchase this 200a esc will it solve the heating problem?
http://hobbyking.com/hobbyking/store..._125A_ESC.html

The link shows it is the same one you used, not the 200a you are refering. In my opinion you are over working your drive train, if you like the speed, invest in a 6s motor and get a better esc. You run higher cell count with a suitable kv motor, amp draw will be less and you will run cooler.

[martin]

The Princess is quite a wet running hull that along with to big prop in that situation, prop down untill you get the boat running better.

[hnm738]

this is the 200a esc http://hobbyking.com/hobbyking/store..._200A_ESC.html

I tried to prop down to 42mm and the boat takes a long time to get on plane.

[martin]

The princeses ive seen run all seem to do this on excelleration untill they get well up on the plane, running bigger props will give a better hole shot but the amp draw goes to high.