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-   -   medusa 36 60 2000kv in e-revo 50mph? (https://www.rc-monster.com/forum/showthread.php?t=12208)

e-rev project 05.19.2008 07:09 PM

medusa 36 60 2000kv in e-revo 50mph?
 
ok i was wondering if the 36 60mm 2000kv medusa would push a e-revo 3.3 with 5s1p 5000mah zippy h 37000 rpm
or should i get 6s1p 44400 rpm
i want 50mph can i i do this i have looked at the speed calc but dont know the variables trans tire size which is all stock locked into 2nd gear so are tires. should i go to a feiago xl
im used to a 6.5 hv e-maxx which seems to me to have gobs of torque with 14 gp 3300's but 30-35mph ish

ps i like wheels "not all the time but at least while rolling 20mph"

also i bash so i want trouble free gearing no overheating
thank you thank you
jeff

brushlessboy16 05.19.2008 07:30 PM

u cant have all at once. ur gonna need to change gearing

q8-maxx 05.19.2008 07:38 PM

Differential Ratio: 2.8461538461538462
Transmission Ratio: 2.111111111111111
Other Ratio: 1
Spur Tooth Count: 36
Pinion Tooth Count: 20
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 5.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 1.8 : 1
Total Ratio: 10.81538 : 1
Tire Circumference (inches): 17.59 inches (446.86 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 56.99 mph (91.55 km/h)
Effective Speed Rate: 3.08 mph/V (4.95 kmh/V)
Estimated Adjusted Speed: 53 mph (85 km/h) - 8% loss
Effective KV Value: 2000
KT constant: 0.68 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

====

5.6 stock revo tire :)

e-rev project 05.19.2008 07:55 PM

thank you so it is possible with 5s1p or is that way over geared i cant tell "how can i tell ballpark figure" is 6s1p overdoing it?
thanks

q8-maxx 05.19.2008 08:08 PM

medusa rated 60000 RPM and in this setup you just push (Total Motor Speed: 37000 RPM)

2000 KV motor best for 5s but you can run 6s too

azjc 05.19.2008 08:39 PM

Quote:

Originally Posted by q8-maxx (Post 174651)
Differential Ratio: 2.8461538461538462
Transmission Ratio: 2.111111111111111
Other Ratio: 1
Spur Tooth Count: 36
Pinion Tooth Count: 20
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 5.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 1.8 : 1
Total Ratio: 10.81538 : 1
Tire Circumference (inches): 17.59 inches (446.86 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 56.99 mph (91.55 km/h)
Effective Speed Rate: 3.08 mph/V (4.95 kmh/V)
Estimated Adjusted Speed: 53 mph (85 km/h) - 8% loss
Effective KV Value: 2000
KT constant: 0.68 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

====

5.6 stock revo tire :)

you do have a pretty big pinion I would go with a 18 tooth , your tires will balloon that would be ok for your on street speed runs but if you want to off road at all gear it for 40-45 mph, also I would stick with the 5s

e-rev project 05.19.2008 09:04 PM

ok ijust measured my hv 6.5 its almost 70mm long will the torque compare to the 60mm long medusa?
now im confused again

lincpimp 05.19.2008 09:42 PM

The medusa will outperform the novak. As long as the 3700 lipos are 25c they should be ok. You will find that 50mph is a bit much, gear for 45mph and you will be happy. I do not see any issues with your setup, just make sure you have a few pinions and spurs to get the gearing just right.

kostaktinos_mt 05.19.2008 09:47 PM

50mph is quite a top speed for any MT... if however that is your goal, the 36-60-2000v2 medusa will do it on 6s...
5s and 40ish mph would be my personal pick; however, it`s your call in this case of course...

i don`t believe that the 75mm novak has more [or even equal] torque to a good 4pole 60mm motor...

e-rev project 05.19.2008 09:49 PM

ok perfect just for the record the gp3300 X 14 were a reference to my e-maxx i plan on useing the 5s1p zippy 5000mah packs
thanks again
you guys are very helpful


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