Single or Twin turbo? opinions from people with these please

[w3bb3r04]

Cool thing too about that 67/65 from comp is that its fully upgradable/ rebuildable if I recall correctly. I believe you can go as large as 7x/7x if its a t4 ct4 hotside (snail) with 4" outlet, 3" inlet. I could be wrong though depending on the model.

Yeah I think that is correct. Mine is a CT4 T4 flange with a 4" inlet and 2.5" outlet. Obviously a new compressor housing could change the outlet but I think that helps with the spool time that I have now. The journal bearing billet wheel CT4's are rated for like 935 hp. I would say you could get into your goal range easily and have excellent spool as well. There are a few 3v guys in the 700's with that turbo.