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hemiblas
RC-Monster Carbon Fiber
 
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Join Date: Oct 2007
12.28.2008, 11:30 PM

I had an old ss5800 and then I upgraded to the mamba 7700. There is no comparison between these motors. The ss5800 was slightly better than an 8 turn motor on 7 cells (which I know you are not supposed to do, but at the time its all I could do for some speed kicks). It also didnt take much for the novak speed controller to shut down on overheating and this was in a graphite duratrax evader that weighed next to nothing geared for around 35mph. the ss5800 split my tranny in 2 pieces though.

The 7700 was by far more powerful even geared down, which I did have to do in my next vehicle which was a Rustler in order to keep temps down on my nimh batteries I was running at the time. Problem I had with the 7700 combo was the controller getting too hot for my liking as I dont like anything to go over 170. Gearing down did the trick though, but again the power of this combo vs the ss5800 on this vehicle was very noticeable. With the 7700 I could smoke the tires on demand, which was not possible on the ss5800 combo.

What I have found with the MM controllers is if you want to go over 35mph just go 3S with a lower kv motor. This will keep temps down on the controller. Otherwise I added a fan to my 7700 combos and that worked great keeping the temps on the controller down.

Last edited by hemiblas; 12.28.2008 at 11:43 PM.
   
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