yamaha_1fan said:Yes you need the ground bar. There should be some made by the same manufacturer as the panel.
You wired it and if you say its 12 AWg then so be it but from the pic, those wires coming off the breakers look small.
grizz said:will some one explain to me why you cant bring a ground wire from your main box that is attached to a ground bar to the new box main grounding lug? i wired mine this way and i am having no problems , common is ground and as long as its attached to a bar going to ground its grounded.