Motor temp reading

[KartRacer]

Cool. Well that rules out the timing issue as being a contributor.
I've got to agree with Fluid & others that have commented. The leopards I've used always ran hot. I've had a couple that gave up the ghost & took out a couple of T180 ESC's in the process.

Guess ill have to step up the budget for the next build.

[KartRacer]

Has anyone tried to set timing to zero to help with the heat?

[lenny]

Hey,
Did you check for water flow yet,
Try using a turkey baster with water in it.

[KartRacer]

Hey,
Did you check for water flow yet,
Try using a turkey baster with water in it.

Lenny ill do the Bastet deal tonight. Air flows easily but who knows. Definitely need answers. Everyone here on the forum seems to have cool temps.

[KartRacer]

Hey,
Did you check for water flow yet,
Try using a turkey baster with water in it.

Ok Lenny did the baster test and water flows with no problem. Is it possible that the exit ports are large enough ( extra lg) that the water is not flowing with enough force to show above the hull when running?

[lenny]

Really not sure on the size of the outlets you have.
Did you look inside the rudder holes,
With the nipples taken out to see if their was any metal in them ?
Take some pictures of the rudder and holes if you can and the setup inside of the hull again.
Do you have any new videos on how it is running on plane ?

[KartRacer]

Lenny
Here are some pictures of the new setup. I pulled the rudder and checked the flow from each port. The smaller port was not flowing as well as the longer port. I drilled the ports out carefully and pulled some shavings from the holes. The do seem to flow better. I don't have any new video because the last runs were by myself and no one to video. I will try to get that the next warm weekend.
I moved the battery packs farther to the rear until it got very loose then moved them forward about a 1/4 inch. I think I can run the looser setup with some tab adjustment. The tabs have been at 3mm above the transom bottom. I am so concerned about temps of the motor that I have not been able to dial in the settings like I would like. Maybe this rudder flow will solve the temp problem. The eagle tree temp sensor is not the wrap around type, but rather the thermistor on the end of the double wire if that is of any concern. I also have not been able to record the second temp, it just reads zero. I am not sure if I have a bad one or something else is set wrong. The voltage is recording the receiver battery not pack voltage, I must have that tapped into the wrong lead.
Thanks in advance for any and all advice. Sure wish there were local FE Boaters in this area!
image.jpg image.jpg image.jpg image.jpg image.jpg

Really not sure on the size of the outlets you have.
Did you look inside the rudder holes,
With the nipples taken out to see if their was any metal in them ?
Take some pictures of the rudder and holes if you can and the setup inside of the hull again.
Do you have any new videos on how it is running on plane ?

[lenny]

The hose to the motor water jacket you should flip flop,
The line in from rudder to bottom nipple and the top to motor mount and then out.
It will fill the jacket more with water that way and than run out the top with the heated water,
Do you have a hand held temp prob to check the temps when you bring it in from a test run ?
That is what I use when testing new setups and also the pond or lake temps to.
Their cheap but do the trick for me.

[KartRacer]

The hose to the motor water jacket you should flip flop,
The line in from rudder to bottom nipple and the top to motor mount and then out.
It will fill the jacket more with water that way and than run out the top with the heated water,
Do you have a hand held temp prob to check the temps when you bring it in from a test run ?
That is what I use when testing new setups and also the pond or lake temps to.
Their cheap but do the trick for me.

Thanks Lenny
I will change the routing.
I do have hand held temp. It reads considerably lower because of the time to bring it in and open the hatch. Maybe I'm worrying too much. The data logger reads it at its highest, during the run. Probably three minutes to bring it into shore and open it up?

[lenny]

If it is stable and you can keep it close to shore you could run with no tape,
That is what I do all the time to check on the temps and for programing the esc and new CG setup testing.
I just use the hatch locks I modded and a seal I made,
Run it and see if you see water flow coming out as it go's buy you,
You should see it coming out a little at med speeds to.
Not just a high speeds.
And check the temps with the hand hold one.

[madmikepags]

running at partial throttle will inc temps because the boat is wetter and you have increased drag, when you accelerate it takes more power to get the boat up on plane thus creating more heat, this is not an issue w/ cars and planes at partial throttle because there is less drag at partial throttle on land and in air.

[Mike Caruso]

running at partial throttle will inc temps because the boat is wetter and you have increased drag, when you accelerate it takes more power to get the boat up on plane thus creating more heat, this is not an issue w/ cars and planes at partial throttle because there is less drag at partial throttle on land and in air.

Correct my buddy was running my boat and he kept doing hole shots !!! I said what are you doing? He said checking to see if the prop is the right size. All he did was heat the motor up.

[KartRacer]

If it is stable and you can keep it close to shore you could run with no tape,
That is what I do all the time to check on the temps and for programing the esc and new CG setup testing.
I just use the hatch locks I modded and a seal I made,
Run it and see if you see water flow coming out as it go's buy you,
You should see it coming out a little at med speeds to.
Not just a high speeds.
And check the temps with the hand hold one.

Lenny
Had an opportunity ( warm weather) to run the Pirate today. I had switched the water lines as you suggested, increased throttle to full 120%, moved the batteries back so the COG was closer to 27 or 28. The Pirate ran great, a little loose, in fact jumped completely out of the water at one point hitting a wake. She ran very well on the back 1/4 of the hull.
I brought it in quickly after 2 minutes and the temp were under 120, put it back out and finished the packs at 5 1/2 minutes. In quick again and temps were at 120 on back of motor. Everything else was cool, at or under 100. The eagle tree recorded 132 max temp, 150 amp max amp and ran right around 28,000 under load with spikes when unloaded to 35,000. I made two or three passes at mid throttle to check water flow out the ports, the one side, fed by the long rudder pickup slot was shooting water about 6 inches but the short intake port to the esc was only putting a little flow. Overall it was a very good run. Batteries 6S 2p recharged with 3800 mah on the Hyperion.
Your input on these results re welcome and I appreciate all of the input from the group helping me get the hull dialed in a lot better. Oh I almost forgot I raised the stinger about 1 degree pulling the nose up.

[lenny]

That sounds great,
Now if you want to you could open the upper rudder hole some,
Just like the bottom one and see if that does the trick for more flow to.
Also did you check the nipple on the esc for silicone in them ?
Make sure you look in them and prob them with a piece of hard wire.
If it is running to loose for your taste,
Just move the trim tabs down 1/32" to 1/16" and see if you like that.

[KartRacer]

That sounds great,
Now if you want to you could open the upper rudder hole some,
Just like the bottom one and see if that does the trick for more flow to.
Also did you check the nipple on the esc for silicone in them ?
Make sure you look in them and prob them with a piece of hard wire.
If it is running to loose for your taste,
Just move the trim tabs down 1/32" to 1/16" and see if you like that.

I didn't think about checking the esc ports for debris I will do that today.
I'll try the trim tab adjustment the next warm day. I think it is a little too loose. Looks a little funny bouncing around, like it could blow over any second, but it was moving!!! I need to get the eagle tree GPS next.
Funny story, the lake is waaay low so you have to walk out about 10 feet to " toss" the boat into the water without getting wet. It is getting cold you know. So I lean out and give it a toss to clear the rudder and I flip the boat over, haha as it floats away,upside down I scramble out up to my knees to retrieve it and upright it. That is another good reason to use tape,LOL. Boy did I feel stupid!