I just had the collar replaced on my 2018 Roubaix Sport. I found a Specialized pdf online with the specs, but this forum won't allow me to include links until I have 10 posts. (I was going to post a screenshot) I can't recall where I found the pdf, but here are the specs:
This is for the 'locator bolt', which inserts at the front side of the collar: 1.0 Nm, 9.5 in-lbf. The pdf then says to "apply blue Loctite 242, then install the locator bolt in the collar to lock the collar on the steerer tube. Tighten until snug. Do not exceed 9.5 in-lbf (1.0 Nm)."
Those are the only torque specs listed. There is other info on assembly and lube. I likely found this pdf somewhere on the Specialized site; sorry can't be more specific. I believe the info was part of an updated manual for maintaining the Future Shock assembly.