Hey Brian, I finally got my CRT.5 running! Temps with the 10L geared 20/46 on 3s were as follows: Motor 125f, Lipo 100f, ESC 110f. This was after about 30min of runtime in 85f+ heat. What CD oil are you running? I found that the stock oil was to light. I'm running 80% 50k, 10% 10k, and 10% 120k. It's a little thick (almost wheelies at any speed), I'm thinking of 100% 30k in there...
Also, do you think this is over geared with a Lehner Basic XL 3100?

Differential Ratio: 3.25
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 20
Total Voltage: 11.1
Motor KV: 3100
Tire Diameter (inches): 3.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 2.3 : 1
Total Ratio: 7.475 : 1
Tire Circumference (inches): 11.31 inches (287.27mm)
Total Motor Speed: 34410 RPM
Vehicle Speed: 49.3 MPH (79.2km/h)
Effective Speed Rate: 4.44mph/V (7.13kmh/V)
Effective KV Value: 3100

BTW I'll post up a thread on it later today or tomorrow...

Bye:018: