RC-Monster Forums  

Go Back   RC-Monster Forums > Support Forums > Brushless

 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
Mis-marked 70mm Medusa?
Old
  (#1)
E-Revonut
RC-Monster RC8T
 
E-Revonut's Avatar
 
Offline
Posts: 2,554
Join Date: Jan 2008
Location: Syracuse, New York (Camillus)
Mis-marked 70mm Medusa? - 04.22.2009, 09:19 PM

I bought a 70mm Medusa. 36-70-1600, and my original plan was to run it in my truugy. After a couple runs I wasn't impressed with the power so I put my Neu in the truggy and the Medusa in my E-Revo for bashing. Power seemed decent but temps where pretty high, 165-170* (also got real warm in truggy) and it was running really fast. I now have my Revo geared as low as I can with what I have, 68/20 gearing - 1600kv - 5s - Masher tires, calculator puts it at about 29MPH but the thing still hauls!!! Now that same setup but 2000kv puts me around 36, much closer to what it's doing! I also plugged the numbers in for the truggy and that's what makes me think that this motor is marked wrong. If I had it overgeared in the truggy performance would suffer and have higher temps right?

Anybody think this is possible???
Anyway to check?


E-Revo/5s/1600kv

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.8333333333333332
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 20
Total Voltage: 18.5
Motor KV: 1600
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.007
Spur/Pinion Ratio: 3.4 : 1
Total Ratio: 17.74103 : 1
Tire Circumference (inches): 18.22 inches (462.82 mm)
Total Motor Speed: 29600 RPM
Vehicle Speed: 28.79 mph (46.25 km/h)
Effective KV Value: 1600

E-Revo/5s/2000kv
Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.8333333333333332
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 20
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.005
Spur/Pinion Ratio: 3.4 : 1
Total Ratio: 17.74103 : 1
Tire Circumference (inches): 18.22 inches (462.82 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 35.99 mph (57.81 km/h)
Effective KV Value: 2000

RC8T/5s/1600kv
Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 54
Pinion Tooth Count: 17
Total Voltage: 18.5
Motor KV: 1600
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.007
Spur/Pinion Ratio: 3.18 : 1
Total Ratio: 13.65882 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Total Motor Speed: 29600 RPM
Vehicle Speed: 36.43 mph (58.51 km/h)
Effective KV Value: 1600

RC8T/5s/2000kv

Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 54
Pinion Tooth Count: 17
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.005
Spur/Pinion Ratio: 3.18 : 1
Total Ratio: 13.65882 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 45.53 mph (73.14 km/h)
Effective KV Value: 2000


RC-Monster RC8T 1515 2.5D/MMM/5s RC-M 4500mah
SC10 MMPro 13.5T 2s NeuEnery 5000mah
RC18T Mamba 25/5400kv 2s lipo + 6s NiMh
   
Reply With Quote
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump







Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vBulletin Skin developed by: vBStyles.com