what would be the best neu for me

[GorillaMaxx360]

how does this sound? Does it sound doable, safe, reliabel, and not to hot
Differential Ratio: 3.3076923076923075 (buggy)
Transmission Ratio: 1.7222222222222223 (second gear single speed)
Other Ratio: 1
Spur Tooth Count: 51 (strobe)
Pinion Tooth Count: 16 (mod one)
Total Voltage: 19.2 (16 cells )
Motor KV: 2200 (Neu 1515 1y)
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 3.19 : 1
Total Ratio: 18.15785 : 1
Tire Circumference (inches): 18.22 inches (462.82mm)
Total Motor Speed: 42240 RPM
Vehicle Speed: 40.14 MPH (64.48km/h)
Effective Speed Rate: 2.09mph/V (3.36kmh/V)
Effective KV Value: 2200

[GorillaMaxx360]

how does this setup sound

[BrianG]

That sounds good to me. Although, enter a current value around 20-50A so the effective calculated kv will drop to more of a real-world value. This will affect your top speed of course, but the output will be more realistic.

[GorillaMaxx360]

so this should work fairly well in my truck reliably and effecent(neu 1515 1y, 16 cells, hb diffs, 51/16 gearing ) does this sound like a solution.

[GorillaMaxx360]

are the rpms to high

[BrianG]

They are higher than you'd typically design it for, but I guess it depends on how long you plan to be running at full-tilt. Don't forget that the kv of 2200 is unloaded. In the real world, it will be less depending on how much current you are pulling and therefore will reduce overall rpm...

[GorillaMaxx360]

i would be running 16cells mabey 4200 or 3800 mah what kind of run tiems should i expect and knowing this does this sound nice a good(remember neu has built in heatsink anyway)
Also would just running the rc monster quark heatsink without the fans be cool enough for the esc or would i need fans

[Serum]

The neu's are good and cool running motors. Though it will be a fast setup with the 2200kv motor. Nieles was using a Neu 1512/2600 kv on his revo, on 4S lipo the motor was stil cool.

[Serum]

fans would be a good choice.

And if they are not cooling it down, they can still clap and applause...

[GorillaMaxx360]

so do you think i could go with out fans and still not overheat the esc (using esc heatsink only) what kind of runtime should i expect with 4200 or 3800 16 cells at bashing pace.

[BrianG]

I have not used a fan on any of my conversions (I hate using fans) and they run fine without thermaling (temps are lower than 140*F), even my Hyper 8 with a hot 2600 KV motor.

[GorillaMaxx360]

what kind of runtime am i looking at with these cells and how long do they typically take to charge.

[BrianG]

The time to charge depends on the charge current selected. Charging the 4200 cells at 2.1A will take about 2 hrs. Charging them at 4.2A will take about 1 hour.

Runtime is soooo hard to estimate since so much depends on driving style, weight, etc. But a rough guess would be 15-20 minutes of general bashing.

[GorillaMaxx360]

can i charge 2 batts at once on the ice charger with an adapter

[BrianG]

As long as you don't exceed the cell count of the charger, yes.