I was running 1/12th with a 19T Komodo brushed, LRP QC3 and 4 cell setup until this week. I was the only one running a brushed motor, another racer had cells and a brushless motor.
I was running against 13.5 BL and getting killed, I was the slowest of all the classes, TC or 1/12th. Granted I'm a once a month hack with minmal skills. For the couple of times I did well, I ran in the 15 second range. I should be able to go faster with this setup but its the best I've done so far. The super fast past national champs were running consistently in the mid to low 10s and a few 9.9s. The pack seemed to be in the upper 10s to 12s range. The black diamond ESC was banned at our track until they were more widely available. The ban is now lifted and it will interesting to see how low the lap times drop as people get the setups figured out. And how the Tekin boys respond.
The upper end ESCs make a big difference, you can see it down the long back stretches. The turbo or boost kick in and they jump. Pretty cool.
I have just bought a Novak Havoc 1s with a 13.5 and a 1s Lipo, I am pumped. I hope to be able to be more competitive. At the very least the car will be lighter, I'll have less motor maintenance and easier battery up keep, or so I'm told.
From the where I sit it seems if you want to be competitive you need to be brushless. Or have a great deal more skill and practice time than I do.
Member of "The Seldom Seen R/C Racing Team"
RC10L (Pro 10, WGT), TC4, BMI DB12RR, Scalpel