T-180 Thermaling ?

[properchopper]

I normally keep my boats and controllers in the shade, this weekend at 79 degrees F I decided not to put up the canopy, I hit my SF 240 with the Temp gun about 20 min's before my heat, 130 F!!!
Ishieldedd it with the hatch down to 90 F before I taped up,

I had some thoughts along those lines. To test, before taping up for a race heat I hit the esc with the spray from a can of Ultra Duster
DSC03443.JPG

It "frosted" the outside of the cooling plate and some of the esc. (there was a racer at the Nat's who, with similar thinking, circulated icewater through his cooling lines before running). Not sure how effective these practices are. I did experience the thermaling after doing this. I tend to think that regardless of the starting temperature, the esc temperature will rapidly equilibrate and reach it's peak operating temperature regardless. Of course the temperature of ambient air surrounding the esc and the temperature of the circulating cooling water while underway will have a large part in determining what the ultimate peak operating temperature will be. (I'm open to being corrected for this line of thinking by anyone with a better grip on the subject)

Be nice if these practices could be investigated with a temp-logging esc or temp-sensor equipped EagleTree.

[Brushless55]

Ok, we had our two day finals this weekend and in fact I just got back a few hours ago...
sounds like my T180 that I just bought used two weeks ago is doing this thermal thingy, but my temps are only about 125* on the esc and 95* on the motor
it would slow to a crawl after the 5th lap with my PMono
and I only used 40% of my packs

is there any way to shut this off?

thanks

[KartRacer]

Ok, we had our two day finals this weekend and in fact I just got back a few hours ago...
sounds like my T180 that I just bought used two weeks ago is doing this thermal thingy, but my temps are only about 125* on the esc and 95* on the motor
it would slow to a crawl after the 5th lap with my PMono
and I only used 40% of my packs


is there any way to shut this off?

thanks

Brushless55
Could it LVC kicking in?

[Brushless55]

Brushless55
Could it LVC kicking in?

I thought it was that but my packs came back with 60% left in the packs, and that's 6000mah left
but I did shut off the LVC and tried again only to have the esc do the same thing..
came to a crawl, like 10-15% throttle

[Make-a-Wake]

Hey Todd. if thats the one I sent you its been working fine. Reset everything. Upon pluuging up have it at full throttle and recalibrate the endpoints, then set the LVC at 2.8v, or shut it off.

Do you have a manual/setup sheet?

Every now and then they need reclaibration. It happened to me at the MS races a year ago, I was way out front and it cut to 50% or so. Recalibrated it all and it went fine.

[Brushless55]

Hey Todd. if thats the one I sent you its been working fine. Reset everything. Upon pluuging up have it at full throttle and recalibrate the endpoints, then set the LVC at 2.8v, or shut it off.

Do you have a manual/setup sheet?

Every now and then they need reclaibration. It happened to me at the MS races a year ago, I was way out front and it cut to 50% or so. Recalibrated it all and it went fine.

it is that one..
I don't think it's a calibration issue, but I will try it
I removed the lvc and it does run great until about 2min into the race...
then it goes to about 10-15% throttle...
love to find out how to shut off that part all together..

[Make-a-Wake]

So you have a manual and you turned the LVC off.........right? If so, there shouldnt be a problem......................hmmmm

[Brushless55]

yeah I reset the esc before the first run....

[Cooper]

Mine did something similar. I thought it was temp also. After installing fresh batt and on a cold esc ran for 30 seconds and it kicked down to like 50%. I'm thinking it has an over amp protection circuit. Several times I have done this and same results each time. Ran a big prop and it slows down. Bring it back in and reboot and run, does it again. Put smaller prop on same set up run all day.
My actual knowledge on this speedo is just from firs hand use, never had a manuel or looked at paperwork. But I could swear this esc has temp cut off protection and over amp protection. When it over temps it just shuts off. When over amp it throttles back. And in my opinion this is one of the best esc's china makes.