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Nov 21, 2015, 03:13 AM
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serjuro's Avatar
Hi again, I just updated the FW to V1.10_090323a_m and it seems to work better than before ....
I am now at Punch Level V (5) and timing at 15" amd the car has no cogging............even at low speeds.......
I have to test it outdoors to see if the ESC or motor gets hotter than before...........but HOOORAAAYYYY !
Thanks for help !

PS I've seen a V2.0_100528_MOD FW , is there a risk to burn my ESC by writing that ?
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Nov 21, 2015, 05:49 AM
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Jym73's Avatar
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Glad to hear that it works better

Normaly I have tried all firmwares, Firmware higher than 1.1... all did the same thing, esc works well few seconds then lost power and the car ran more slowly. EDIT : No, it was with X-car 120 , with this one i have tried only one firmware higher than 1.1 and esc did same as X-car.
Dec 02, 2015, 08:03 AM
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Jym73's Avatar
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Esc well fried on the Rattler. 3S 2700KV 4poles, it seems that TSKY 120A don't like 3S and 4 Poles. X-car 120A work fine in the same conditions.
Dec 02, 2015, 08:16 AM
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serjuro's Avatar
Sorry to heat that...... RiP Tsky (120A my .....)
Mine is still going ok on 2s with 13T 3000kv 4x4 Titan Reely,,,,Not even warm,,,,
Dec 02, 2015, 08:36 AM
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Jym73's Avatar
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Quote:
Mine is still going ok on 2s with 13T 3000kv 4x4 Titan Reely,,,,Not even warm,,,,
Yes, i didn't have big problem with 2s, even with a 6.5T 5485Kv motor in a heavy 1/10 SCT 2WD. Thus with a 3000kv and 2s it is perfect.
Dec 06, 2015, 12:35 AM
Registered User
It's rated for 4s, do you think that is imagination?
Dec 06, 2015, 04:06 AM
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Jym73's Avatar
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I'm sure it can't use 4S, i never see it rated for 4S, only 3s max. But mine didn't last long with 3s.
Dec 06, 2015, 05:49 AM
Registered User
From the gear best page:

Suitable for cross-country running, less than 1 / 10 scale big cars
120A continuous current, transient current 760A
Support the 2-4 lithium battery or 4-9 Ni MH battery
High quality PCB plate, current and capability, good linearity
Dec 06, 2015, 06:12 AM
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Jym73's Avatar
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Ha! yes LOL. No, imo it can't hold 4S, this is a mistake. This ESC is a copy of hobbywing xerun, like X-car 120A also and these esc are rated for 3S max. When i say copy, it only use same plastic box and software, TSKY is far to be a clone.

In a post above i said that i have fried my TSKY with 3S, 110c when it fried, heat protection enable but it seems heat protection didn't works.
Last edited by Jym73; Dec 06, 2015 at 06:23 AM.
Dec 06, 2015, 07:22 AM
Buggy in style
It might be a good idea to take apart this ESC and verify that all heat transfer pads are present and conduct heat properly to the heatsink.

I am going to buy one of these to test out soon.
Dec 06, 2015, 08:37 AM
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Jym73's Avatar
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Quote:
It might be a good idea to take apart this ESC and verify that all heat transfer pads are present and conduct heat properly to the heatsink.
I have done a photo for this :

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It is already in first post. We can't press better heatsink, it is glued with the white heat transfer and heatsink is hold by plastic box and not screws. I recall that heat protection doesn't works on mine.

Imo this esc is good for 2S, with 3S i suggest to use "high" turn motor, like above than 13T 2 pole in 1/10 car.
Dec 06, 2015, 09:10 AM
Buggy in style
I went back to your first post to see the other picture. Half the thermal pad don't touch the MOSFET,that's not good.
you can fix this issue using thicker heatpads.
Dec 06, 2015, 09:11 AM
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RustyUs's Avatar

Time will tell.


I'v been using a TSKY Tyrannosaurus Rex 120A ESC in my Yeti since June. Started out on 2S and then I finally got some 3S packs to test the ESC in a heavy 1/10 platform (Yeti fits this catagory oh so well ). I'm pumping the 3S LiPo "juice" into the T-Rex ESC, and passing it on through to a budget friendly 4300kv 550 sized sensorless motor. It's the black no-name cheap motor I fear that I'm gonna destroy, as the temps are on the rise...reaching 168F on the motor, and the ESC just getting warm.

Since the Yeti was handling the 'lil blue ESC 3S LiPo testing, I am now up to four of those TSKY 120A ESCs. I was impressed with the performance of it so much, I was finding myself constently bidding on them. I usually ended up paying around $15 for them shipped.

I needed a good ESC to handle my every growing RC fleet, and the 60A/120A ESCs found on eBay have been great so far. The only complaint that I have with the 120A blue ESCs ... the 14 gauge wire. Using 2S LiPo packs is fine, but when I jumped up the juice to 11.1v , the wires where getting warm coming off a hard run with the Yeti. Some of the TSKY ESCs listed specs say the speed controls are 4S capable.

Hopefully, after the presents are opened, I can confirm something (good/bad) running 4S LiPo through a "T-Rex" ESC mounted on a 1/8 sized RC. With one of my lil' blue 120A speed controls; soldered up with 10 gauge wire (my battery 13awg leads still need soldered on), and connected to a Castle Creations 1512 2650Kv ...the Yeti awaits the transplant. Yeah, I know I'm an idiot , but I have to prove it to myself that my re-branded/copied/disposable ESCs won't live up to the 4S/1:8 scale claim .
Dec 06, 2015, 09:53 AM
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Jym73's Avatar
Thread OP
Thanks for the feedback. I guess that i didn't have luck with mine . 2700Kv 4 pole and 3s has done this.

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For 4S, i really won't be sure, some webiste say 3S only and like it is a hobbywing copy who use same software i guess it is rate for 3s only also.

Quote:
I went back to your first post to see the other picture. Half the thermal pad don't touch the MOSFET,that's not good.
you can fix this issue using thicker heatpads.
Yes, half are deep inside, the other half touch it less but touch it, so after buy it we must disassembly it to be sure it is good? And what about heat protection? why it didn't works?
Last edited by Jym73; Dec 06, 2015 at 10:04 AM.
Dec 06, 2015, 11:09 AM
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RustyUs's Avatar
Quote:
Originally Posted by RustyUs
....With one of my lil' blue 120A speed controls; soldered up with 10 gauge wire (my battery 13awg leads still need soldered on), and connected to a Castle Creations 1512 2650Kv ...the Yeti awaits the transplant. Yeah, I know I'm an idiot , but I have to prove it to myself that my re-branded/copied/disposable ESCs won't live up to the 4S/1:8 scale claim .
I must add that I do plan on running the Yeti without the body/roll-cage. This will be just in case a total meltdown occurs, and I have to quickly WHACK the ESC off the mounting plate .


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