Line 2 Line coatings

[bryceraisanen]

http://www.line2linecoatings.com

Interesting coatings designed to go on the side of pistons to make the piston run straight in the bore without rocking. Some of them they almost apply to the point of an interference fit and then u polish it down with scotchbrite during install just enough to get the piston to slide through the cylinder.

Anyone used them or something similar? They're a smallish outfit outta Michigan I think. I found the link on US Chrome's website roughly a year ago and been pondering it ever since. Debating on incorporating it into my summer project.

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[dboivin]

i'm familiar with company and they claim some big things with it. i'm gonna try it one of my mx bikes this summer to see how it does. One of my friends works for them and has been begging me to try it so i'll know more after summer.

 

[Jkmola]

Looks like the base price to have a disassembled piston coated is $35/ea. I've certainly spent more than that on other things for my sled HOPING that it would help. Seems like a pretty low risk investment to me.

 

[rmscustom]

Looks like the base price to have a disassembled piston coated is $35/ea. I've certainly spent more than that on other things for my sled HOPING that it would help. Seems like a pretty low risk investment to me.

Cheap to try but its going in a very expensive part... Interesting for sure but would like to see some long term tests and tear downs.

 

[PaasoRacing]

Is this different than the piston coating that U.S. Chrome offers? I have had them coat a set of Wiseco's for me for a big bore a few years ago, they came back with instructions on how to use a scuff pad to ensure the piston wasn't too tight in the bore. I didn't feel like the coating was anything special... had the motor apart after 3-400mi due to a belt taking out the crank seal and the coating had worn off quite a bit.

 

[bryceraisanen]

Cheap to try but its going in a very expensive part... Interesting for sure but would like to see some long term tests and tear downs.

It takes some time, but they have a lot of videos/pics etc that show pistons from different race applications with quite a few hours on them.

Paaso, yes the coating is designed to wear down to its "optimal" clearance. Don't have any way to know if u had a L2L coating or something else... It looks like US Chrome is an authorized dealer/installer for L2L. Too bad u had other issues with that motor, would be curious to see how long it lasts and/or if any performance gains.

 

[gman086]

http://www.finishlinecoatings.com/engine.htm

I've used these guys for my pistons on a Doo Series III motor with Union Bay top end. The head was wrong (race domes for high altitude with too much compression) and deto'd badly tearing up the domes before I caught it. The pistons looked like new and are still in use today over ten years later. They ceramic coat the head AND skirts and there is ZERO question in my mind that they dramatically improve longevity after my experience! Also my crowns were coated to nitrous specs. I can't say enough good about their setup - I think the key though is to get someone who really knows what they're doing and FLC does!

Have FUN!

G MAN

 

[bryceraisanen]

Good to know. Wonder y a guy doesnt hear more about this stuff?

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[Reeb]

Good to know. Wonder y a guy doesnt hear more about this stuff?

We coat our pistons all the time. In our bench racing sessions we've talked about thicknesses and the possibility of running thicker coating to stop the piston slap with Wiseco's. To an extent. When we are dealing with bigger slugs(500cc a hole) pistons wear out quite quickly. They develop lots of piston slap and we are swapping top ends more often than we want.
To see these guys develop coatings made specifically to different thicknesses for this exact issue is very intriguing. You know where my next batch of pistons is going to now. Thanks!