Official Tekin RX8 GEN2 ESC Thread
#167
For those talking about 6v servos on 7.4v, electric motor performance is very linear when voltage is increased at the same amp draw minus the small amount lost due to extra heat. If you look at 7.4v servos that list both 6v and 7.4v performance like this RadioPost "Green" that for the 23% increase in voltage to pick up 12% decrease in transit speed and 22.5% increase in torque output.
Model: RPS2207M (Multi Servo)
Torque: @ 6.0V: 249 oz in @ 7.4V: 305 oz in
Speed:@ 6.0V: 0.08sec/0.07sec/
Savox says the SC1267MG gives you a 22% decrease in transit speed and a 54% increase in torque output. ( I queston a 23% increase in voltage giving a 54% torque increase on the same amp draw).
Speed(@6.0V sec/60): .11
Torque(@6.0V oz-in): 180.5
Speed(@7.4V sec/60): .09
Torque(@7.4V oz-in): 277.7
Hitec says the HS-7950TH gives you a 15% decrease in transit speed and a 20.6% increase in torque.
Speed (6.0v/7.4v) 0.15/0.13
Torque OZ/in (6.0v/7.4v) 403/486
So basically you can take you 6.0v servo specs and assume if it doesn't blow under the increased voltage that the transit speed will get 15-20% faster and the torque output will be 20-25% higher if you bump the RX8 G2 BEC from 6.0v to 7.4v.
Model: RPS2207M (Multi Servo)
Torque: @ 6.0V: 249 oz in @ 7.4V: 305 oz in
Speed:@ 6.0V: 0.08sec/0.07sec/
Savox says the SC1267MG gives you a 22% decrease in transit speed and a 54% increase in torque output. ( I queston a 23% increase in voltage giving a 54% torque increase on the same amp draw).
Speed(@6.0V sec/60): .11
Torque(@6.0V oz-in): 180.5
Speed(@7.4V sec/60): .09
Torque(@7.4V oz-in): 277.7
Hitec says the HS-7950TH gives you a 15% decrease in transit speed and a 20.6% increase in torque.
Speed (6.0v/7.4v) 0.15/0.13
Torque OZ/in (6.0v/7.4v) 403/486
So basically you can take you 6.0v servo specs and assume if it doesn't blow under the increased voltage that the transit speed will get 15-20% faster and the torque output will be 20-25% higher if you bump the RX8 G2 BEC from 6.0v to 7.4v.
#168
Savox says the SC1267MG gives you a 22% decrease in transit speed and a 54% increase in torque output. ( I queston a 23% increase in voltage giving a 54% torque increase on the same amp draw).
Speed(@6.0V sec/60): .11
Torque(@6.0V oz-in): 180.5
Speed(@7.4V sec/60): .09
Torque(@7.4V oz-in): 277.7
Speed(@6.0V sec/60): .11
Torque(@6.0V oz-in): 180.5
Speed(@7.4V sec/60): .09
Torque(@7.4V oz-in): 277.7
Stall current (at locked):* 2500 mA @ 4.8V
Stall current (at locked):* 3000 mA @ 6.0V
Stall current (at locked):* 3500 mA @ 7.4V
#170
Thats pretty much what I figured I just didn't see the numbers when I grabbed the data. So 7.4v x 3.5A =25.9w versus 6.0v x 3.0A =18w so thats a 44% increase in power consumption.
#175
Will we be able to dump out the raw data in a csv or similar form from the data logging?
I'd like to be able to compare across packs, runs, and dates, as well as script some stuff up for another purpose too.
I'd like to be able to compare across packs, runs, and dates, as well as script some stuff up for another purpose too.
#176
#177
I expect you are correct, that is why I have mine is on pre-order. I'm just wondering when the 1st ones will ship. My current ESC fried, so I don't get to run my ebug till these ship. I'm going into withdrawal... Shake... Shake... Shudder... I need a fix...
#179
Joined: Mar 2008
Posts: 5,717
From: At dirt tracks in Michigan!
#180
There are several other companies that sell sensor wires of various lengths that should work for you unless something silly happens like they change the connectors on the RX8 Gen2 and T8i motors...currently there are 3 Tekin PNs for sensor cables...
TT3810 200mm Sensor wire
TT3811 100mm Sensor wire
TT3813 275mm Sensor wire
http://www.teamtekin.com/parts-list/index.html
TT3810 200mm Sensor wire
TT3811 100mm Sensor wire
TT3813 275mm Sensor wire
http://www.teamtekin.com/parts-list/index.html



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