Are people running the RX8 yet?

[super dave]

yah i say it is a good motor aswell, but the rx8 looks so cool and is very quiet.

[Sparky]

It’s a little early to tell just how durable the RX8 is, but I have run about 20 batteries thru my RX8 1350kv motor system. The motor ran a little hot, after checking the RPM of the motor it is really is about a 1475kv motor. So my gearing was a little high. After dropping a couple of teeth to 15/46 it cooled off. I really like the system. It’s just so consistent. My first race with the new RX8 is this weekend. I think the system is more durable than the MMM, but I think the CC 2200kv is a little faster. One thing that shocked me is there is no neutral motor breaking at all. When you let off the trigger the car will coast forever. I think with the added control of the RX8, my lap times will actually be faster. We will see.

[Aceldama]

Originally Posted by Sparky

It’s a little early to tell just how durable the RX8 is, but I have run about 20 batteries thru my RX8 1350kv motor system. The motor ran a little hot, after checking the RPM of the motor it is really is about a 1475kv motor. So my gearing was a little high. After dropping a couple of teeth to 15/46 it cooled off. I really like the system. It’s just so consistent. My first race with the new RX8 is this weekend. I think the system is more durable than the MMM, but I think the CC 2200kv is a little faster. One thing that shocked me is there is no neutral motor breaking at all. When you let off the trigger the car will coast forever. I think with the added control of the RX8, my lap times will actually be faster. We will see.

Hmm, I hope I'm going to be ok running 16/46 on 6s in a Mugen MBX5t. Please note that I put the KV as 1410 because that was my best guess for the 1350s actual KV.

Here was the output using BrianG's Calc:

Differential Ratio: 4.6
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 16
Total Voltage: 22.2
Motor KV: 1410
Tire Diameter (inches): 5.84
Spur/Pinion Ratio: 2.88 : 1
Total Ratio: 13.225 : 1
Tire Circumference (inches): 18.35 inches (466.01 mm)
Total Motor Speed: 31302 RPM
Vehicle Speed: 41.12 mph (66.06 km/h)
Effective KV Value: 1410
KT constant: 0.96 oz-in/A

[brushlessboy16]

Originally Posted by Sparky

It’s a little early to tell just how durable the RX8 is, but I have run about 20 batteries thru my RX8 1350kv motor system. The motor ran a little hot, after checking the RPM of the motor it is really is about a 1475kv motor. So my gearing was a little high. After dropping a couple of teeth to 15/46 it cooled off. I really like the system. It’s just so consistent. My first race with the new RX8 is this weekend. I think the system is more durable than the MMM, but I think the CC 2200kv is a little faster. One thing that shocked me is there is no neutral motor breaking at all. When you let off the trigger the car will coast forever. I think with the added control of the RX8, my lap times will actually be faster. We will see.

What do you mean by no Braking, is the motor slotted? neat concept. my cc2200 combo doesnt really have that much rolling resistance. Cant wait to see a head to head competition between the two.