Welcome to the forum Hotti;
Your setup is very hot! that 6XL motor will get hot rather soon; use a tempgun to know what temperature it's running at, the 7XL is hot on 4S, so the 6XL will be even hotter.
I ran my 7XL on 3S and it was great fun for bashing. (and the temps where fine too)
This might be an interesting read;
http://www.rc-monster.com/forum/showthread.php?t=5115