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Probably a good reason as any why the latest LRP Comp 2 ESCs are now 100% waterproof!



Have also seen some of these (LRP, Nosram) burn up in use even without water -they just go up in flames & lots of smoke.
 
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Discussion Starter · #4 ·
hmm wow...reminds me of my new servo that burnt out..big hole in the
bottom..and i fried the RX...didnt have the bec board and i friend
them..arghhh



Nismo
 

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My heatsink came off mine in a race yesterday :S still seems ok
though, I think it may have some overheat protection... What a
stack... I launched the car over a corner twince in succession and
landed both times (under full throttle) on the rear wheels and when I
landed the car was going real slow and behaving somewhat like a
FWD... Turned out the rear drive belt stretched on impact and has
chewed itself to pieces :(
only $12 to fix that, as long as the ESC is still ok. The heatsink was
sitting in the chassis tub - is there any way to attach them better than
just sliding them onto the metal protruding from the ESC??
 

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Oh also in the race before hand I had a cell in my battery pack
explode and now the pack has a big bulge in it...
 
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Discussion Starter · #7 ·
it remindes me of the time when i didn't no how to tune my car proper and smoke was coming of the cooling head
i was a idiot then way to lean
 

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azenis said:
My heatsink came off mine in a race yesterday :S still seems ok
though, I think it may have some overheat protection...


The heatsink was
sitting in the chassis tub - is there any way to attach them better than
just sliding them onto the metal protruding from the ESC??

No way a SportTuned would overload any ESC even the crappiest ones.


Nosrams are pretty modern design and should have overheat protection built-in. With a SportTuned you can probably safely run it without a heatsink.








Sounds like your pack is toast though.


What were you doing to it, charging @ 10A+ ??



Sure it wasn't physical damage instead?
 
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Discussion Starter · #9 ·
My heatsink came off mine in a race yesterday :S still seems ok

though, I think it may have some overheat protection...


The heatsink was
sitting in the chassis tub - is there any way to attach them better than
just sliding them onto the metal protruding from the ESC??








No way a SportTuned would overload any ESC even the crappiest ones.



no but silver can 540's kill MSC..ive been through like 20 of those...finally got a esc now..ya,




also on the heatsink topic, ive heard there is some heat glue you can use??




Nismo
 

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nismospeed said:
also on the heatsink topic, ive heard there is some heat glue you can use??

A dab of silicone sealant or rubber glue works ok to keep heatsinks on. But glue is a lousy heat-transfer medium, make sure the heatsink is sitting straight onto the bit that is hot without having a layer of glue between the surfaces.


Everything else- epoxy, superglue etc - they all loosen when hot so no use.
 

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zoomer said:
Nosrams are pretty modern design and should
have overheat protection built-in. With a SportTuned you can probably
safely run it without a heatsink.


 


 


Sounds like your pack is toast though.


What were you doing to it, charging @ 10A+ ??



Sure it wasn't physical damage instead?


 
Thank god for that...

The battery was charged @ 3A, but was fine after the charge. I used it
in a race and noticed it after the race, It didnt hold charge for the
duration of the race which I thought was odd, when I removed the
battery I discovered why.
Not physical damage, was a reasonably clean race (unlike the one that
followed) and the cell was the one in the middle, and the battery pack
sits east/west in the TA04, so I doubt it...
 
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Discussion Starter · #12 ·
(unlike the one that
followed)


please go on..lol....




batteries are tempermental...my last stick pack died...but realised it
was the wireing, so im going to replace it, ive cut it of near the
bottom, so i can solder straight onto the wire tab bit.



Nismo
 

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azenis said:
Not physical damage, was a reasonably clean race (unlike the one that
followed) and the cell was the one in the middle, and the battery pack
sits east/west in the TA04, so I doubt it...

yeah, you're right. TA04 tub is big enough... battery can get banana'd if you get hit t-boned hard from the side, but its usually on the cars with more exposed battery position like TL01&M03.


Its one of those Model Engine yellow-shrink packs, innit?


(cordless drill grade, methink)
 

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it is a yellow shrink pack, was $45 from LHS, not sure what the brand
was but it has a skitcker with sort of rainbow colors, ill finnd out
tonight, 3300mah nimh
 

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hehehe... yeah, my old cordless' cells were getting real dodgy so last weekend I thought of pulling some packs apart to re-cell it.


In the end couldn't find any cells good enough for installation from the junk pile, so instead I made a cord for the drill and stuck a Tamiya plug on that.


Now I have a cordless drill... with cord!
 

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heh heh... that's probably 1/2 the reason I've never heard of those before.


Rip the wrap off... pray you don't find clueless cells with only "MEXICO" or "CHINA" dotmatrix'd onto blank wrapping.
 
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