I take it the big kb45 8xl 1700kv is also too hot for a 6s setup???

Is a 11XL and 6s setup going to be faster than a really fast nitro engine? With my previous setup of 5s and 7XL when it wasnt cogging which was 99% of the time I could tell its power would totally destroy any nitro engine out there.

I plan on sticking my cc phoniex 125 esc and feigao 7XL in my jammin buggy and using mechanical brakes on a 4s lipo setup, hopefully that setup wont be too hot and work good. The 7XL with 14 gp3300 cells worked fine with the phoniex in my savage it just wasnt all that fast, but my buggy is alot lighter than my savage.