Ceramic coating???

C

cummnz4x4pwr

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Aug 10, 2006
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I am building a pulling motor and I was told by a repuatable shop that there is no need to coat arias forged pistons.

Why is this and what are your opinions????

Thanks
Jake Staton
 
i was told by piers diesel. "we sell u the piston and we can put u in touch with someone who will ceramic coat cause we will not" "but we will not stand behind them". supposively the coating can come off and if not applied properly can score cylinder walls . i have heard this from many other engine builders and i myself did not coat my mahle pistons.
 
The crowns don't require a thermal barrier, but why not if it's applied properly?

The process we use is good for 2200*F and reduces heat flux into the piston by 15% - besides lowering oil & coolant temps, there's that much more energy available to do work...
 
it took me over 10 hooks at 2000 plus degrees during entire pull to finally melt my mahle pistons. was i asking for it ummm ya! would cermaic coating mattered :umno: just more crap going through my turbo. by the way mahle makes pistons for cummins and there cheap!
 
Yes - thermal barriers (as well as low-friction HPCs) help protect your parts - but just like a bullet-proof vest, they don't offer indestructability.
 
all im saying is what i heard and know first hand is its not worth it . selling bullet proof vests to people with water pistols is a waste of time and money .its not worth the money time and or risk of improper application. this is not in any way meant to b offensive to anyone just personnel opinion which is what i stated . which is all the man asking the question wanted ...but i suppose if i owned the equipment to apply the ceramic coating to pistons i would b watching this thread to pounce on anyone who objected to the worthyness of it.
 
Your running over 2000* on non coated pistons and fried them....

Ever thought that if maybe you kept the EGT's to 1900 and ran a coating they would have lasted indeffinetly?

If the coating is goog to 2200 and alumium melts a 1375*F, that kinda seems like a no brainer.

The quality of the product is what will make the difference.
 
Ive seen 2 engines with Swain Tech coatings, 1 gas and 1 Cummins. The product was aplyed to crowns and skirts, the gas turbo engine also has it aplyed to the chambers of the the head. In both cases the engine had to come apart early and coatings were gone. I was not impressed in the least with coatings from that point foward.
 
I had mine pistons done by Swain a couple years ago. Gold coat and PC-9. I recently roasted a exhaust valve but, other than the injector spray patten on the domes..... all the gold coating is still there and the cylinder wall are smooth as can be.

I say yes..... coating makes a difference. You get what you pay for though and there's a lot of place you can have them coating that use a kiln in their garage. That's where you're gonna run into trouble !
 
Exactly - 20+ years successful experience with thermal barriers is good enough for us... same thing with powder coating - if you don't apply it correctly, PPG dust is just junk. :Cheer:
 
triton said:
I had mine pistons done by Swain a couple years ago. Gold coat and PC-9. I recently roasted a exhaust valve but, other than the injector spray patten on the domes..... all the gold coating is still there and the cylinder wall are smooth as can be.

I say yes..... coating makes a difference. You get what you pay for though and there's a lot of place you can have them coating that use a kiln in their garage. That's where you're gonna run into trouble !
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Agree, have them coated.

We had the marines in the original BBD coated it ran approx four years. BBD II had Aries coated pistons and when we split the block after two years of Mod pulling, the coating was is in great shape. Still runing Aries coated pistons.

Do it,

BBD
 
seems to work pretty good in Top Fuel cars, Blower 2wd Trucks, and Racecars.......and in atleast one duramax that i know of for sure that has coated pistons (same green coating as TOP FUEL cars).......and they have never had a problem with its pistons......
 
roachie said:
Your running over 2000* on non coated pistons and fried them....

Ever thought that if maybe you kept the EGT's to 1900 and ran a coating they would have lasted indeffinetly?

If the coating is goog to 2200 and alumium melts a 1375*F, that kinda seems like a no brainer.

The quality of the product is what will make the difference.
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have tried a few different angles on keeping it below 2000+ dgrees it wasn't my intention to fry the pistons or hit that high of egt's . with every pull this year i made an attempt to lower the egts. and im the kind of guy who is not gonna lift at mid track cause the egts r too high:rockwoot:


sanctioning bodies up here decided to prohibit the use of spraying water .cause there to lazy to check everyones tank for meth and stop the whining of he's cheatin.
with that one rule change it has created a problem that i still have no idea what to do to lower the egts.

im open to suggestions :thankyou2:

so far im canning the air aftercooler for a 1500 cfm water aftercooler adding bigger injectors and porting the head. im hoping the water cooler will lower the egts at least by 300 degrees but i only expect 200 .

im comtenplating higher lift cam which will require cutting valve reliefs in pistons and lowering comp.
 
yeah gas on it said:
sanctioning bodies up here decided to prohibit the use of spraying water .cause there to lazy to check everyones tank for meth
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How would they feel if no trucks showed up for thier show becuase the can't keep them from melting down. Maybe exsplain that to them see what they say. If there to lazy to check for meth then allow it for now, IMO the higher HP lever your at the less advantage it provides anyway. most likley folks will have problems with the meth and resort back to just water anyway.

BBD
 
BigBadDodge said:
How would they feel if no trucks showed up for thier show becuase the can't keep them from melting down. Maybe exsplain that to them see what they say. If there to lazy to check for meth then allow it for now, IMO the higher HP lever your at the less advantage it provides anyway. most likley folks will have problems with the meth and resort back to just water anyway.

BBD
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i agree totally

here the problem the president of nadm gene...head is as hard as the ground ohio sits on. and most sanctioning bodies in ohio go with nadm's rules

water prohibited:dead-horse-fast2:
 
as long as the coating is applied correctly and you use the proper coating it will hold up and reflect the heat back into the cylinder and not thru the piston. i'm going to be starting a motor build here in 2 weeks and it will have the swain gold coating on the pistons and the pc-9 on the skirts.
 
nadm

BigBadDodge said:
There is the problem, I hear that guy is an A$$!!!!!


BBD
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just like hustler this site should have a a$$hole of the month poll for people that make sledpulling life more complicated. as if sleeping 20 hrs a week is not bad enough and living life in poverty.

for this months a$$hole of the month i vote for gene mohney pres. nadm:kick:
 
yeah gas on it said:
just like hustler this site should have a a$$hole of the month poll for people that make sledpulling life more complicated. as if sleeping 20 hrs a week is not bad enough and living life in poverty.

for this months a$$hole of the month i vote for gene mohney pres. nadm:kick:
Click to expand...

:hehe::rockwoot:
 
thanks for all the replies guys...
I think I should say this much the shop that told me that sells coated cast pistons but said that there is no need in coating forged pistons. Why??? I cant tell you....

I am going to get them coated after all. Its cheap insurance for a very expensive motor build.

Thanks
Jake Staton
 
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