Is this rotor usable?

[JustJeff]

Originally Posted by TitaniumTT

This is all good info, so post it up as opposed to PM's

As far as the rotors... my feelings, it's obviously damaged, gases are going to get in there and do things that it shouldn't do. The pressures can force the apex seal/corner seal harder into the sealing surfaces than they should and cause accelerated wear... I know someone who tried this by milling gas ports into the rotors. Killed the housings in about 5k from what I understand.

That little imperfection could lead to the seal moving back and forth and wear improperly. Also thinking carbon buildup is going to increase in that area as well.

Regarding the seals... I'm running the RA super seals. When the fuel filter clogged she ran 13.5-13.7 AFR's and 15+psi and detonated for sure. The seals didn't crack, they didn't chip, but they did warp. IMO they saved the engine though.

I'll create another thread about the PM..make it easier for people to search and find.

You've got good points about added carbon build up in that spot and added wear.

About the detonation...that's what I've read and been told about RA seals. They seem to be more resistant to detonation. I won't be doing Super Seals though. It seems like most of the guys running higher HP and boost are going with the Super Seals. I'm thinking with my mostly stock rebuild and rarely hitting 12psi on my stock turbo I'll be ok with Classics.

I'm curious if you had chatter marks from the Super Seals? IIRC what I read about RA is some chatter marking with the Classics. More chatter marking with the Super Seals.