I really didn't know where to put this, so I figured single turbo would be fine. I'm browsing online with a friend who's looking for a turbo and we come across a turbo that's been colored red. We think it was anodized since the metal's texture looked intact. Does anyone know if this has any adverse effects on turbos with cooling or if the coloring can even last? It just seemed unusual so I thought I'd ask you guys.

Anyone at all?

Anodizing is really nothing more that Alodine with a coloring in it. Alodine is used to prevent corrosion in aluminum.... SO... no adverse affects at all... it will fade over time... and will scratch. But it won't cause anything bad to happen.

Thanks.

Most colored compressor housings are powdercoated.





-Ted

Anodizing can cause a drastic reduction in fatiuge strength but for a front cover this shouldnt be a problem, it is also most likely not anodized as well as it dosnt tend to give great results on alot of casting alloys

I see, so it's more than likely powdercoated. Does that have any effects?

i used to powdercoat a bit a couple years ago. i have done a few valve covers and the powder coated valve covers seemed to run hotter then the stock coating. i dont think it would hurt anything and powdercoating is very durable so it should hold up

Thanks everyone.

if the coating of the anodizing is too thick then the clearence between the turbine blades and the housing may be too tight.

Lil info on anodizing



http://www.focuser.com/atm/anodize/anodize99.html

here's black

That turbo looks really good like that. See, the idea never crossed my mind until me and my friend were looking at the ones that come from manufacturer's colored like that. I think it would look really good underneath the hood to keep whatever color theme chosen going. How do the intake manifolds hold with engine specific paint on them?

power coating holds up pretty well





camera sucks, but you get the color theme

Nice.

anodize is a very thin coating, much thinner then powdercoat

Alright, but how hard would it be to just leave the interior of the housings alone and just coat the outsides?

Not true. You can anodize anything thickness you want. You can go from 2 thou all the way to 50 thou. If the part is a clearenced, close tolerance part, say a brake caliper with pistons, the pistons may no longer fit into the caliper if the anodizing is too thick. I sent out a set a while ago for the race car at my school and when it came back the part was 30 thou oversized, and the bore was 30 thou smaller. I had to go back on teh CNC and recut the bore.