[Malltero]

Hey Guys,

I am rebuilding the engine in my daily driver. It is a mitsubishi 3.0. I ended up getting 10:1 pistons, and a bunch of other nice stuff, higher flow injector, blah blah blah.

Anways, what do you guys know about engine coatings.

I found a couple sites the claimed longer wear reisistance and a little more hp from coating your bearing and piston skirts with a graphite like substance.

They also coat the tops of the pistons with a thermal barrier... and another type of coating on the bottom.

Does any one have any opinions on these types of coatings?

Thanks,

 

[Malltero]

Here is a link:

http://performancecoatings.com/PERFORMANCE COATINGS.htm

 

[Malltero]

BTT.. no experinces with this stuff?

 

[reddwarf]

Part of the job of the piston is to transmit some of the heat from combustion down through itself and into the block. These coatings slow down that process.

I don't see any problems however, with coating your intake runners (helps keep intake mixture cool for density = power) and the exhaust ports (keeps exhaust velocity high = better scavenging for more power)

 

[Malltero]

I thought a majority of heat transfer was from the piston rings...? Just curious... this is my first rebuild.

 

[horse_with_no_name]

TRY EASTWOOD, THEY SELL A DIY KIT, ALSO HPC THEY WILL COAT ANY THING WITH A MULTITUDE OF COATINGS THAT THEY CARRY.