guys, dont count out the Kr in 12th scale 4-cell. i ran this motor last weekend at our 12th scale race and it was wicked fast! i was runnning a 10x2 and i think i was the fastest at the track. someone was actually surprised that my car was that fast and that i was running a Kr. he said somthing like "you made the Kr work in 4 cell?" .... the motor is tricky to gear and tune but when you get the right combo, its will work and work very well.

first up is stiffer springs! these are a must. the stock springs are just too soft. i went with Trinity purples on both sides but slightly tweaked the neg softer. Purple pos and red neg should work as well. Run 767s rather than the stock 766s - it just gives better power. timing i set to 12 degs. i wouldnt go much higher than that with this motor in 4 cell (15 max but more for 6cell TC). then gear it two teeth lower than you would a Ti of the same wind. i made good time with that set up - easily 9 mins so no fear of dumping and this was considering i was punching it the whole 8 mins - no pacing at all coz i was running after the track record (i dont mean to brag but i was able to make a new track record ) so no problem with run time. one guy came up to me after one main coz he wanted to try out my ride... he still put in about 5-6 laps with what was left in my pack. it had awesome speed, and had hardly any fade in power at the tail end of the run.

im not saying this is the best motor to use, coz others are equally as capable, but it is fast!