gs sut rtr bl setups ?
 

What motor/esc combo woud be good if i whant jaw droping preformance out of a gs sut rtr truck ? woud it be enough with 4s lipos or coud i go for 6s and a motor with lower kv raiting ?

If you want jaw-dropping, nitro-whoopin' performance, you'll need a 6s lipo. A 4s would work, of course, but it won't be as fast or run as cool. A Wanderer or Feigao XL motor would do the trick, but the Lehners are better if you can afford them.

As for ESC's, I would choose the Quark.