Base damage doesn't change across ED's much. A little bit in Shiradi, a few base damage in the cores. The rate of fire is a contentious issue, but it seems to cap at each BaB based on sources of alacrity.
What makes the biggest difference in base damage is whether or not the ED has Dex as a stat choice. Dex is the ultimate source of base damage.
Damage Mod:
+35 (Dex)
+11 (Deadly)
+4.75 (TF Base Dice)
+2.4/1.2 (Seeker VI/Seeker XII, 10% Crits) This is from Ring of the Stalker or Consuming Darkness depending on your gearing
+0-4 (Drow)
+12 (Enchantment Bonus TF)
+3 Arcane PL
+3 Monk
+6 Ranger but I think it doesn't work
So as I said, with the exception of Drow, the base damage on a shuriken build is most heavily affected by Dex modifier, then Enchantment Bonus of Weapon, then Deadly. All the rest is important as increased sources of damage, but those make of the lions share of the value.
For me personally my base damage is around ~70 before ED stance.
I usually run in SD, I have a lots of SA damage on this character. 12d6+2 listed under Sneak Attack feat, plus another 12 from Masque, and 8 from Avithoul. And of course TF procs.
Here's a fun picture of my damage to a helpless mob with 20 stacks of Vuln, and archers focus. AKA my damage to red/purples until they fix stand and deliver.