[DeTomaso] Coating Pistons

[Ken Green]

Bob,
   
  It seems like more of an art than a science to me.  I assume you are just asking about heat barrier coatings, not the moly coatings on the sides of a piston which are suppose to reduce wear.  I think it all depends on a 100 engine parameters, most of which we aren't even aware of for a particular engine.  Some people claim heat barriers on the piston are great, and others that it doesn't do anything or even hurts.  I suspect that it all depends on details of combustion, turbulence in the chamber, etc.  If a part is failing due to heat, it's probably good, but for durability, not for power.  The most common use I know if is a coating on the face of exhaust valves in turbocharged motors.  In that case, some people claim it reduces detonation and allows higher compression.  The problem is that most of us can't build 20 engines with small changes and compare them.
   
  Ken

ROBERT TIMMA TIMMA <ddbt10 at msn.com> wrote:
  I was at a local Alfa gathering yesterday, introducing them to my fuse box and a guy gave a little demo on ceramic coatings. He especially focused on pistons. Cams, rod & crank bearings, valves, and combustion chambers were all components that he coated. His claims sound great....reduced engine heat, lower oil temp, XX% longer engine life.... you know the claims! 

Company is Synergy Coatings www.coat-this.com

Has anybody had experience with this? I'm not ready to do my motor soon but I'm always skeptical of grand claims.
Bob T.
#3952
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