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Discussion Starter #1
Hello.

Are there any of you who have had your pistons WPC treated?

I would like to know if it's something you have had good experience with.

Although I have already got my pistons coated, but if WPC treatment is a better solution ... it will be the way to go.

Cp stempler.jpg
 

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Although the pistons are a good thing to treat, I think your rings and cylinder walls are more important IMO. Most of the friction from the piston on the cylinder walls comes from the rings. From what I have read about WPC, you can have friction coatings treated with WPC. From what I have researched about it, you should have your turbo bearings and seals, engine bearings, thrust bearing surfaces, wrist pins, and valves and camshafts WPC to get the full effect of it. All metal on metal surfaces in the engine and turbo. Do whatever you want though. Good luck!

Talk to TurboPinapple Mike, he used it on the FactorX Widebody NSX that Billy Johnson piloted in the time attack events.
 

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Discussion Starter #3
Well...

I am going to have my walls, bearings, rings and those things treated.
My wrist pins are DLC coated.

that was why I wanted to ask if someone had tried both things, and could vote for either one or the other.

It was only because I have spent a little money on the coating...

Thanks for the reply!
 

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From my correspondence with them in 2012:

Dear Craig,

Thank you for your inquiry.
Here are the answers for your questions.

1. Cryo treatment is a good process and if you are going to do Cryo with
WPC, I recommend to do Cryo first and then WPC next.

2. I recommend to get the parts treated in the following orders. If you have
specific problem parts, the parts will be the top priority.
a) Engine parts
Main/rod bearings
Pistons, piston rings, piston pins
Oil pump gears
Cylinder wall
Crankshaft
Camshaft/cam caps
Valve train parts(Buckets, valves, valve springs, valve
spring retainers, cotters, valve spring seats)
b) Transmission parts
Gears/shafts
Hubs/sleeves, synchronizer rings
Selector forks/shafts
c) Other
Ring & pinion gears
Clutch plates(steel)
LSD plates/gears

3. WPC treatment can be applied used parts as well as long as the condition
is good.

Please feel free to contact me if you have further questions.

Best Regards,

Izumi Ogawa

WPC Treatment Co., Inc.
2909 Oregon Court, Unit C2, Torrance, CA 90503
Tel: 310-782-8647 Fax: 310-782-7624
E-mail: [email protected]
URL: www.wpctreatment.com
 

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Discussion Starter #5
it is also an opportunity to get them cryo, and WPC treated.

It will certainly be bad ass.

Have you then tried it Craig?
 

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I have not, but would like too. Cool process.
 

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Discussion Starter #7
Okay.

It would be a pretty expensive process.

Well... F it, rather do it right the first time!

If someone have experience with some of these things, just chime in!
 

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My rings, engine bearings, and oil pump were WPC treated. Its awesome!
 

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Discussion Starter #9
Cool.

Think i have to get my things treated aswell.

It sounds like it is worth the money.
 

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Discussion Starter #10
Are there any disadvantages of getting parts cryo treated?

I do not see the downside of WPC...

Lucas.
 

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Are there any disadvantages of getting parts cryo treated?

I do not see the downside of WPC...

Lucas.
Yes if your part that you are going to cryo is already hardened to a specific hardness, cryo can make that part too hard and brittle and actually break under load. But other than that, I don't think so. An example would be the head studs. I wouldn't cryo those because they are already hardened to a specific hardness, any more would probably make the bolt fail at under the rated pressure it is designed to hold. But I would cryo the head, because it is cast and soft. Parts handle heat better once cryo treated. I would WPC hardened parts, as long as it was not on a threaded section.

side note: I was told the greatest friction part in the car is the rear differential. Make sure you do that with anything you are doing in the engine IMO.
 
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