Sidewinder + eflite .25 outrunner ?

[lincpimp]

Outrunners only cause issues with some escs, and that is generally the startup programming. I ran an align 430l in a 10th scale carwith a quark 33 and it worked fine. The mamba 25 is a good esc, and the sidewinder seems to be a good esc too. JRH has tested it with a variety of outrunners, if memory serves correctly. It really depends on vehicle weight and gearing. Plus if you want to run 4s lipo, you will need to disable the internal bec and run an external bec or receiver pack.