Had a chance to do some testing today with my X-12 13.5 in my TC5R on outdoor asphalt. Air temperature was about 80 deg farenheit with partly cloudy skies. Speed control was LRP SPX on profile 6 and battery was SMC 5200mah 50C. Tried both the 1-dot(X+5deg) and -dot(X+10deg) timing with a FDRs of 6.69, 6.96, and 7.25.
As expected, both the 1-dot and -dot timing produced high motor temps between 170-200 degrees farenheit.
The -dot timing really didn't result in anything good. The motor lasted about 1.5 minutes and then began to fall off using all the FDRs.
With the 1-dot timing, I found that if the motor temp stayed under 180 deg F, then I could work with it. I finished the practice today using the 1-dot timing with a FDR of 6.96 and a motor temp of 177 deg F, which realistically, is too high but, the motor did keep most of its punch.
During past practice sessions using the 2-dot timing with a FDR of 6, the motor temperature stayed between 140-150, which is ideal. However, during our last club race, the other drivers using SPX's on profile 8 and Duo2's with their motor timing advanced all the way counter-clockwise, had much more top end speed than me using a X-12 with 2-dot timing and a FDR of 6.
Last edited by bfong13; 12-28-2009 at 11:19 AM.