wiseco coated pistons

[bentvalve]

what do you guys think about the coated wiseco pistons? any ideas,concerns? wil they be ok for a stroker? don

[dajogejr]

Jury is out on that for me....I'm gonna stick to the run of the mill 68mm blaster pistons for my 10 mil, same as I had in my 4 mil...

 

I just don't trust the coating to keep from coming off....it's a mental thing for me I'm sure.

[bentvalve]

thats kinda what i was thinking.. i know there are people in the turbo mustang world that coat their pistons,bearings. i have never heard of a failure but you never know.. i know that in the 1998-20-sum gm was using a coating on the skirts of their pistons and it was almost devistating..many engines were replaced because of this. caused extra wear on the cylinders and then started a slapping sound..what a mess. don

[BigRed350x]

I'm with daj...I can't stand the idea of having some "coating" applied to my pistons, or anything on my rotating assembly for that matter. There's just too much risk in my mind of having a little chunk of it break off and fuck you. No matter how much I hear about coatings and such I don't think its something I can picture myself doing to my engine...

[2003LimitedBanshee]

Well, I'll go against the grain here on this one and say that I fully intended to have my Wiseco's coated. Now, I don't plan on buying them coated, but rather having them done locally at an industrial coating shop where a buddy of mine works. Coatings have been around for quite a few years now, and they've only gotten better with time. I know GM had some problems, but most of those that I was aware of was due to a change in the piston skirt, not the application of coatings. I haven't heard of (doesn't mean somebody else hasn't) a failure that was tied to a coating breakdown to this day. With that said, I fully intend to have the tops coated with a heat barrier coating and the skirts with a friction reducer. To each their own, but in my mind it's worth it.

[FireHead]

Let me make sure that I am clear on the question: We are talking about getting a Wiseco piston coated by a third party, and not talking about a new product from Wiseco? Correct?

 

Assuming the prior I believe in coating certain pistons in certain applications with certain coatings. Most coating people put on pistons don't do a damn thing. I have even recently seen a product, shown to me by someone on here, that allows you to coat parts with a ceramic coating at home with a convential oven. :shoothead: In regard to coating around the combustion area there are a couple of ceramic and TiAln coatings developed by Balzer that can enhance the combustion process (or stop the combustion process from destroying parts). Coating the underside of the piston with a ceramic coating is worthwhile in many cases. Coating the combustion chamber surface can also be useful. That's it.

 

If Wiseco was coating their pistons, then I would probably buy one of two to fool around with, but I would suspect, until proven wrong that it was a marketing tool.

 

The main problem with people having a 3rd party coat their pistons is that coatings have a thickness. Pistons are a fairly high tolerance component and dimensionally adding to them (via a coating) in any way is certainly going to effect it's performance and longevity or the performance and longevity of other parts around it. Extra thinckness in certain areas can be dealy with by the end user, but the majority of the end user to not have the knowledge or capability to do it. An example would be if you had the piston skirt coated then you would need to accomodate that with the cylinder bore. A piston is not easily measured as it is not round, so how does the general public figure out how much to increase the bore size? Past that you may have to adjust ring grooves and ring thicknesses due to the coating on the skirt.

 

.......................I'm spent for now. :beer: