36? Aeromarine Avenger? Out of hibernation and Round 3 with it .

[rearwheelin]

I have a friend who fully encapsulated a $50 120 amp esc which I gave to him thinking they were junk. He put aluminum tubes for water cooling all over it and over 10 years later it’s still his best boat esc. Go figure lol

[rearwheelin]

Well the ESC seems good with the modification and has a lot of metal and cool tubs to pull heat and cool things down . It?s a bit bigger than stock now . I like how the esc mounting plate it aluminum and bolted to aluminum stringers , that?s going to get rid of heat really well in itself.

[rearwheelin]

Maiden ready

Ready to rock and roll
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[rearwheelin]

Boat ran great , perfect for a maiden. Brought it in 4 times to check things then I was informed it was illegal to run at this pond , been running there since 2006 lol... anyways the pond was too small but figured proper for testing. Zero heat issues and couldn’t be happier with this boat so far. I’d say it’s poking 60 mph and gaining before I run out of water.
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[rearwheelin]

I managed to sneak in a full test today. This boat is heavy with 2 8000mah 6s batteries at 17 lbs so it seems to push its weight around but nice straight line stability. Nothing got hot , not even close so now I feel completely comfortable with a full 7 minutes continuous run without bringing the boat in to check temps. The esc capacitors were not even
100F , the hottest thing was the motor at 110F and the batteries might of been 90F . Outside weather was about 85F. This build has good fun running in its future

[rearwheelin]

Interesting read, thanks for the link. I've always used stuff like Arctic Silver myself.

I couldn’t believe how cool the esc came back each time. I’ve lowered the strut a bit for the next test .

[rearwheelin]

I dropped the strut more and that was all it took to make it handle and turn better. I was basically full throttle for 5 minutes and boat did everything great

[rearwheelin]

Last post on this one .

I?ve been working this boat pretty hard the last week and am really learning a lot on setting up a cat. A single drive cat was something I have never really accomplished. I deleted all my old testing videos because I don?t like to clog up my channel with noise so this is a video from today and it?s sure working good right now so I?ll be saving the current adjustments. This boat started out with a idea of my own custom drop in unit 7 years ago. I built a drop in for a titan33 also and that has been working out great also but this one was over the top for me and well worth the effort.

[larryrose11]

On motor cooling, I think you may have the tubes reversed.
in any container, water will only fill as high as the water exit. The rest will be filled with air.
So, water exit at the highest point on the motor jacket, always.
Also, the fittings on TP Cans are often too narow, making a flow restriction. Replace them. I just use a short section of aluminum tube.

[rearwheelin]

On motor cooling, I think you may have the tubes reversed.
in any container, water will only fill as high as the water exit. The rest will be filled with air.
So, water exit at the highest point on the motor jacket, always.
Also, the fittings on TP Cans are often too narow, making a flow restriction. Replace them. I just use a short section of aluminum tube.

Thank for the comment , you are correct on the water jacket line however I did think it out and decided to go with it and the motor jacket is cooling the engine great with nice flow out the exit. The only perk to having the flow enter at the high side is it will cool the motor best where the motor leads enter the motor. Water also transfers heat super fast and doesn’t really store a lot so the sooner you can get the water out the better. That said all my other boats are as you pointed out. I can literally go 5 minutes full throttled and not overheat anything on this boat. Where I have the water line T to the engine that is a smaller ID going to the motor as so not to loose too much going to a section on the esc. I have had to solder rudder barbs and re drill smaller from too much flow before but thanks for noticing that.

[fweasel]

In an open cooling system, like our FE boats, there is no such thing as too much flow. More flow, more better. I'm not sure I follow your logic on needing to cool the top end of the motor where the wires exit the can. That space is often void, just a bearing, the end of the rotor, and the tops the the winds. Regardless, it's a simple plumbing flip to fill the can at the low point and does nothing but improve your cooling.

The boat really does appear to be running great. Nice work.

[rearwheelin]

In an open cooling system, like our FE boats, there is no such thing as too much flow. More flow, more better. I'm not sure I follow your logic on needing to cool the top end of the motor where the wires exit the can. That space is often void, just a bearing, the end of the rotor, and the tops the the winds. Regardless, it's a simple plumbing flip to fill the can at the low point and does nothing but improve your cooling.

The boat really does appear to be running great. Nice work.

Thanks man ! I agree with you guys on the cooling ! But seems to be working great right now . I’m sure I will flip the line some day but they enter and exit on top of the jacket so not as important as a jacket like on my CC and NEU motors where the entry is on the side and exit is on top of motor by the motor leads. The motor outside temp has only been as high as 110F and core 140F after running hard for over 5 minutes