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Dr_T
RC-Monster Carbon Fiber
 
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Posts: 133
Join Date: Oct 2014
Location: Germany
06.19.2015, 11:37 AM

Cremation of the XK 5682 motor

I guess when Hobbyking is blowing off stuff for peanuts, there's probably a very good reason for it. In all fairness though, the motor was only rated for 106A, so maybe I just had it coming. Log partial with dry road testing shows ~50 A average, ~190 A peak. I thought I could get away with it with some good cooling, but the winding resistance appears just to be too high, causing them to heat up too quickly. On a positive note, it means I'll be looking for a nice replacement motor. RPM in log was unexpectedly high again.

Footage:
[youtube]PXOLQ-FTYfE[/youtube]





Also tried the new GRP slicks, and as Lizard already mentioned in his 1717 Slash thread, they're less grippy than the older treaded versions... The rubber already feels less sticky and it seems they wear down differently too, the slicks appear to stay smoother (pic below is both S5 compound, used on same surface, same conditions). Contacted GRP about it and here's the reply:

Quote:
in January when we have put on the market the new line 2015 of 1:8 Gt we have make same little change to all the compound for works this better and also have more time life.

So the compound of 2015 season it is little differnt from the 2014 tyres. But the REVO 2015 and SLICK 2015 compound are the same.
A bit bummed GRP doesn't mention differences in compounds in their specs, but stuff happens.


Last edited by Dr_T; 06.19.2015 at 02:21 PM.
   
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