twin sidewinder in e-maxx

[superlightmaxx]

lincpimp, since you seem to be a master at brushless motors around here! (I read a lot of you posts...)
I have a question for you:

do you think I would be better off with 2 7s feigao instead of 2 8s? I really dont plan to go to 3s lipo! I have all 2s lipo so i'm trying to find the best feigao motor that would run good on 2s without any heating issues! I could even gear it in first so geraing isn't an issue! and my e-maxx is going to be under 9 pounds with lipos and everything on board...

I dont want to attain warp speed but I like to pass 40mph