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Old 08-08-2004, 01:30 AM   #1
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Default Novak-whats the difference between.....

Hey i was just wondering what is the difference between the HV-MAXX brushless system and the SS5800 system?
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Old 08-08-2004, 07:17 AM   #2
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the hv is for the emaxx. the motor is alot bigger for alot of torque. also not available yet.
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Old 08-08-2004, 09:29 AM   #3
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the ss5800 is a 540 size motor, to replace brushed 540's the hv-maxx, is intended for replacing 550 size motors.. although, I wonder if I could run an ss5800 in my emaxx, as the power is pretty big when you compare brushless to brushed motors anyway..
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Old 08-08-2004, 01:04 PM   #4
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I used my ss5800 in my e-maxx on 6 cells and a light gearing for just crawling around in the rocks. I think my gearing was like 70/14. Pretty slow, runs a long time and give pretty precise control for just crawling around. I think I remember someone on another board that used two novak ss5800's on 7 cells each and he said it was like the stock titans with longer run time and no motor work required.

The reason that the SS5800 looks so big is that there is about 3/8 of and inch on top and bottom of the rotor that is just blank. The top is needed for the sensors and the bottom spacing is used to push the rotor into the center of the pole fields. The rotor itself isn't very big.
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Old 08-08-2004, 02:01 PM   #5
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What's the point of sensors? I've read that Sensorless Brushless systems are faster/better/more expensive. Why is that?

I'm trying to soak up information, because I'm on the way to the Brushless world!
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Old 08-09-2004, 05:25 AM   #6
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The sensors are there to give the controller the static position of the rotor as well as the spinning position of the rotor. The sensorless systems don't know where the rotor is until it spins a few times because they use the unused power coils as sensors. When the rotor spins past an unused coil, it induces a current in the coil that the controller can use for calculate when to fire the appropriate coil. The advantage of the sensored systems is a strong take off from 0 mph. The sensorless systems make a guess to get moving and so it may "cog" sligtly until the controller gets some information about the rotors position. The mathmatical computations made by the sensorless systems are much more complex than the sensored systems. The sensorless controllers are also more expensive because most all of them can handle more power than the novak controller.
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Old 08-09-2004, 01:40 PM   #7
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kufman: how long does that last you, are you using 1 battery or 2 in parallel? does it get very hot? I have 16 or 18 tooth pinions.. with stock 66 spur, would run 16, actually am using 1 brushed Johnson with 16/66 and it's pretty respectable, in 1st gear, long runtime approx. 12 minutes with the 14.4 setup..
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Old 08-09-2004, 03:27 PM   #8
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I was only running 1 6-cell battery, 2600mAh and I would say that it lasted between 12 to 15 minutes of just messing around. I was in first gear almost the whole time and usually going pretty slow to get through the rocks.

I have also run the johnson 550 motors. two of them on 12 cells (stock setup for EVX) and the run pretty good. Mine don't have fans in them so they get pretty hot if you run the whole pack through, 12+ minutes.
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