Didnt even think about the coating on the rotors. This junk wont blow out with compressed air. It had to pulled out piece by piece. It is now clean out and ready to be a new Dbl Ic. I figured it was blocking 20 to 25% of the tubes. I am not concerned about the blower that did this as I bought this IC to build into a Dbl IC from another member
Ken
This is an Intercooler cut open to make into a Dbl IC. See anything wrong with this picture
Ken
High rpm will cause the coating to flake off due to centrifugal force. It's actually quite a normal phenomenon. I've seen rotors go from looking great to completely bald in a few dyno pulls to 6500rpm @ 20% OD.
Perhaps somewhat. Kevin doesnt' seem to be having any problems with this S-Port rotors but Mark K has blown the coatings off his GTP rotors more than once so I don't know.my factory blower on my red 94 sc looked perfect at 70,000 miles. I had it ported by ESM to DIII....Overdrove the crud out of it and.....Within a week...Where did my coating go?? I think the later model eaton blower coatings are much better at holding up