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snellemin
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08.18.2011, 12:30 AM

Does suck. But I am talking to the "man" of Viper-RC now regarding my findings. I've been asked to test future rotors out.

I have been spoiled by Hacker, Plettenberg, Tekin and Neu motors. The Viper motor has some large shoes to fill.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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CarstenL
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08.18.2011, 03:15 PM

Sounds like they should've made them 4 pole instead.
   
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snellemin
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08.18.2011, 03:41 PM

They would of had a winner if they made them slotless.

Update as of last nite. I ran the motor with a 20T, 0 Timing and super low brakes. The low brakes was a mistake, as I crashed my car taking out the servo. But in the short time that I ran it, the temp got to 125F or so.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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  (#19)
snellemin
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08.22.2011, 01:42 AM

Did a few test runs again with 0 degrees timing. Temps where much better.

Run #1 measured with Eagletree V4 150A.
Tekin RX8
0 timing
Stock brakes
4s hardcase Acepow
20T pinion
Ofna GTP 47 spur
Peak Amps 157.35A
Peak Watts 2069W
Continuous Amps 22.08A
Continuous Watts 324W@14.68V
129F


Run #2 measured with Eagletree V4 150A.
Tekin RX8
0 timing
Stronger brakes
4s hardcase Acepow
23T pinion
Ofna GTP 47 spur
Peak Amps 162.21A
Peak Watts 2039W
Continuous Amps 27.67A
Continuous Watts 400W@14.44V
142F

So it looks like I can go up another tooth with the pinion and still be good with temps.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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