Ceramic coatings
#1
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Looking for some advice on some thermal coatings for an engine I'm throwing together.
Short background: Bought motor from a 1996 and it sat too long, rings semi-seized to the cylinders. Broke them loose, acquired a ball hone (used it) and measured cylinders which are well within specs. Buying new piston rings, using old pistons.
Have a set of Belfab h-beam rods that I'm using for a few reasons, mostly because I had them already. Dropping my manifold, turbine housing, downpipe and wastegate off to be ceramic coated and started to question. Since I'm removing the rods from the pistons, why not ceramic coat the pistons too? Searching Google I was able to find all the reasons why I should ceramic coat them but can't locate any reliable piece of information if I should or shouldn't coat USED pistons.
Buying new pistons is out of the question because of the budget. I'm not willing to spend the kind of money on this motor that new pistons and machine work would require. Replacing the weak link of rods with something stronger should be a bit of an advantage, and I'd think detonation resistance and thermal properties would be an advantage with turbo, yes? The big question is, should I have the used pistons coated?
Short background: Bought motor from a 1996 and it sat too long, rings semi-seized to the cylinders. Broke them loose, acquired a ball hone (used it) and measured cylinders which are well within specs. Buying new piston rings, using old pistons.
Have a set of Belfab h-beam rods that I'm using for a few reasons, mostly because I had them already. Dropping my manifold, turbine housing, downpipe and wastegate off to be ceramic coated and started to question. Since I'm removing the rods from the pistons, why not ceramic coat the pistons too? Searching Google I was able to find all the reasons why I should ceramic coat them but can't locate any reliable piece of information if I should or shouldn't coat USED pistons.
Buying new pistons is out of the question because of the budget. I'm not willing to spend the kind of money on this motor that new pistons and machine work would require. Replacing the weak link of rods with something stronger should be a bit of an advantage, and I'd think detonation resistance and thermal properties would be an advantage with turbo, yes? The big question is, should I have the used pistons coated?
#3
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iTrader: (11)
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,360
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hmm.. You talked me into it.
I just found a good block in my basement which was previously cleaned and machined for something that never happened years ago..... What pistons to buy now.....
I just found a good block in my basement which was previously cleaned and machined for something that never happened years ago..... What pistons to buy now.....
#7
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In my build I had my pistons coated at Polymer Dynamics here in Houston. The tops were ceramic coated and the skirts were a dry film moly coat. I've talked to several professional engine builders before I really took them to have them done and they told me after the engine is given a beat down, when the rebuild comes along, they take an S.O.S pad and scrub off the carbon buildup on the top of the piston and the coating remains.
Word is the coating "Likes to stick" to fresh pistons![wink](https://www.miataturbo.net/images/smilies/wink.gif)
![](https://www.miataturbo.net/attachments/engine-performance-56/41894-ceramic-coatings-7535538d.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41895-ceramic-coatings-61a64f50.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41896-ceramic-coatings-d52b2bd2.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41897-ceramic-coatings-7c770f7a.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41898-ceramic-coatings-2570a601.jpg?dateline=1335466677)
Word is the coating "Likes to stick" to fresh pistons
![wink](https://www.miataturbo.net/images/smilies/wink.gif)
![](https://www.miataturbo.net/attachments/engine-performance-56/41894-ceramic-coatings-7535538d.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41895-ceramic-coatings-61a64f50.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41896-ceramic-coatings-d52b2bd2.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41897-ceramic-coatings-7c770f7a.jpg?dateline=1335466677)
![](https://www.miataturbo.net/attachments/engine-performance-56/41898-ceramic-coatings-2570a601.jpg?dateline=1335466677)
![](http://i923.photobucket.com/albums/ad80/firefighter573/1a6bf3a5.jpg)
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