You can't compare a PTE turbo to a Turbonetics or Innovative turbo really. They won't use a PTE exhaust housing on any of their turbos. PTE uses their own selection of compressor & turbine wheels. They may even machine the wheels to their liking. They definitely customize the compressor housing & exhaust housing.
This is proprietary stuff. Go GM for their source code on an ECM, or Microsoft for that matter...
If they told you every part in the turbo, what's to stop someone else from making that turbo, and killing the business on their product.
You guys are looking at this stuff from a completely wrong aspect, but I understand your frustration. The biggest info you will probably get is what HP a turbo will support, and real world results from people not associated with the business. I've seen people run good numbers with Turbonetics, Innovative, PTE, Limit Engineering, Turbo Specialties.. You can compare some turbos from other companies, but you will find that a TE44 from one vendor is different than a TE44 from another vendor. They may use the same wheels, but one may use a different type of bearing, or may custom machine the compressor side, or use a different exhaust side. Yes it adds to the confusion. I go by what other people have run, and listen to the vendors to see how well they know the product, what their opinion is on the turbo. That opinion has to be weighed however, as they are trying to sell you a turbo :wink: