High Temp Coatings in a Turbo

[Shannen Durphey]

Frederic Breitwieser wrote:
> 
> >Would this stuff work on the turbine housing of a turbo?  Seems like
> >it would if it works on headers, but I've seen pictures with the turbine
> >red hot while I've never seen headers glow quite so brightly.  What is
> >the temp limit for these coatings?
> 
> Please, either don't do this, or be very, very careful if you coat the
> inside housing of your turbo.  A friend and I had done just that in an
> attempt to keep it from glowing red under high use - and either we made the
> coating too thick or the turbo's tolerances are extremely tight 

extremely tight.

- the
> turbine seemed okay when we assembled it, however on the car the thing made
> loud noises for a very short amount of time, then we found that the edges
> of the impellor had chipped and the inside of the housing was scraped (Jet
> Hot actually).
> 
> Maybe a really thin coat ? Maybe not, we decided not to try again with the
> replacement turbo.  This was on a Mitsu Starion.
> 
> Frederic Breitwieser
> Bridgeport, CT 06606
> 
> Homebrew Automotive Website:
> http://www.xephic.dynip.com/
> 
> 1993 Supercharged Lincoln Continental
> 1989 HMMWV
> 2000 Buick-Powered Mid-Engined Sports Car