Metal improvement/Coating Options

[BReyes]

In our evaluation of options for metal coating, what insight can experience bring.

Focus on two equally important applications. (i) High horsepower NA and FA applications (air cooled and water cooled), and (ii) Concours.

What works for you? On internal powertrain component surface, and exterior surfaces. What is the intended purpose/result. What is the actual result. Which options trully work (which do not) and why. Are images able to be provided here for the different options?

Metal improvement is important on some components, while appearance is important on others (and not mutually exclusive.

Let's talk technological advancements on this issue. Let's talk about what manufactures have done/are doing next. And what is done in racing often preceeds production, so there is new information, but there is a lot of historical information on what has worked to date and why.

Regards,

[BReyes]

With powertrain components such as engine internals and externals being the principal focus.

Porsche Race motor. But lets keep in mind that a concours restoration to an original is as an important point.

Crank: Nitriding. Lets say there will be work being done to it by Porsche crank specialist
Cylinders: Nikasil and Alusil. I have both, and seeking another PNC set, say 7.5 CR 100mm
Pistons:skirts with new coating of...
Rods: polished and shotpeened and...
Heads studs: New studs and nuts have...
Pass thru bolts: refurbish them with a new coating of...

Cylinder head internals: refurbish and include porting and polishing, and flowing, and new) parts. With or with out boring being performed, and with or with out new seats... New springs have a coating of the retainers et may have coatings of...
Cylinder head external: with a coating of
Chain Housing: Bead blasting and...
Case: Scotchbrite on dremel and off to machine shop, you know what color it comes back. Really this car is going to get driven. Bling, whatever. It would be nice but I know what Florida is like. Some of the factory case coating are (BMW Ferrari MB Juaguar enthusiasts are always welcome. OK US/Japan Race motors may be aluminum to too and this discussion is about Metal Improvement/Coating Options)...
Gear box internals and externals have coatings of...
FA PLumbing/Intercooler: Some polished, maybe... if so then...If for a race car, then... If for a concours 930 restoration. OMG I just thought of a factory 935 or 962 restoration. That would be something. And I bet many of you are like me in that I am interested in the technological advances that make todays FA car a reliable performer. Plumbing will be purchased/fabricated in race motor.
Turbo/ wastegate internals and externals: may have coatings of...
Digital engine Managament (FYI) except concours:
EFI on Carrera or Vario Ram:
Clutch/PP/Flywheel/Start gear:
Control arms:
TB:
Sway bars
Steering rack
Oil lines
Oil Tank: Has copper and I haven't refinished the outside. Ok how about this, if strip the paint, sanding it doesn't seem like the only option.

So what did I forget? What do you think?

Thank You for your input and links. And BTW, no I haven't taken engineering courses, but I have BS (oh and BA Finace too), so I am not going to pay for unnecessary fixed or variable costs .

Regards,

[BReyes]

Engine received first oil change today (after top end rebuild/detainling)and it needs serious detailing next! The engine went in looking like new, and the first time I opened the deck lid after break in (and a couple rain storms)I was surprised by the lack of cleanliness.

Inside the motor, the machine shop refurbished heads with new intake valves and exhaust guides. New rings, head studs, gaskets, cam oil lines. Regular top end rebuild. The motor is stock. And the car is a street car.

I have another 3.2 presently, and I am planning on building a high horspower Turbo motor, for the track. I seek metal improvement options to reduce the likelihood of catastrophic engine damage from high rpms and heat. And that is the motivation for starting this thread. What could i do better on the Turbo motor?

The outside of my motor is also important. Presently, I am looking at a few items that do not look new:
-My fuel rails. They were Zinc anodized, and since they did not look new when I dissassembled the motor, I scotchedbrite the rails. They looked nearly polished when the motor went back in, and now need to be redone and coated. Would you apply clear coat? What products would work on the rails. Zinc anodizing is attractive and will be considered on future cars I restore. The shop who cleaned my engine cooler used a speacial coating that vaguely resembles it without the shine (so I wouldn't use it for the rails, but I mention it here as it my spark your memory as to the coatings you know about)
-Studs: intake, rocker covers have surface rust. That is not pleasant, and I must correct. What would you do now. What would you do next time that would prevent this. Seems like, either they will be Zinc anodized or a coating applied to the tips hat protrude from the nuts. When I adjust the valves, I plan to handle this, and that is why I am asking what you do/would do, before I do it.
-Cam chain housings. They were bead blasted. Now they are ugh. I now know why some guys used black (wrinkle) finish. I've seen them yellow too. The yellow seemed to be acrylic enamel. A clear would sure look nice, but I need to research my options. The bead blasting doesn't seem to complete the task, because the finish (nice when engine installed) didn't seem to last past the first road trip to Key West.
-Oil return tubes: They were new and they seemed to have begun to lose the zinc anodizing in some areas (probably due to heat from the SSI heat exchangers). What would you do better?
-engine case: Scotchbrited much of it and the water that splashed it didn't help (some areas appear'dirtier' than others). What would you do better. Polishing the case is out of the question(the machine shop sent me back my case with a dull finish, and that surprised me, but now I know better than trying to pollish it (the external surfaces) and send it to the machine shop). I like bling, but I expect my case to stay nice without a lot of polishing.

So here I am with a dilema. How do I detail my engine and get it looking like new again, and how do I build them to stay the way they are intended-longer. The valve covers (red), fan housing (silver), and engine cover (red) are very glossy.

The turbo motor I am designing will generate a lot of heat, and stress the engine internals, and have plumbing that must be fabricated. What would you do to improve the metal (internals) and the appearance of the externals.

Tell me how you improve metal, and the coatings you use.

Thanks again.