Coat your cams!

This is for non-Subaru related topics. Keep it realistic please.

Moderator: Moderators

Post Reply
Imprezive
Fourth Gear
Posts: 1428
Joined: Wed Jun 22, 2005 4:07 am
Location: Northern CA

Coat your cams!

Post by Imprezive » Sat Jan 09, 2016 12:30 am

Back when I did a lot of work on Spec Miatas here in California there was always talk of "coating" engine, transmission, and differential internals. I never knew what this coating was, and I doubt anyone else did either. I'm sure some of you are aware of it, though.

Anyway, I'm doing a Rhetorical analysis of a scientific Engineering based article of my choosing for a class, and happened to find this article which I thought was pretty interesting:

http://www.sciencedirect.com/science/ar ... 9X06001484

Its a short article and offers up a cool result. The catch I thought was interesting is that the different lubricant used drastically reduces the friction coefficient when using the ta-C type DLC coating. Anyone have experience using coatings for engine parts?
1992 T-Leg = 195whp 197wtq SOLD :(
1988 4Runner RIP
2006 Suzuki DRZ400sm
2007 Miata
1994 Miata
2003 WRX Wagon
2016 Mazda 3

jamal
Vendor
Vendor
Posts: 2484
Joined: Thu Dec 11, 2003 11:34 am
Location: Missoula
Contact:

Re: Coat your cams!

Post by jamal » Sat Jan 09, 2016 12:43 am

I have had a few things WPC treated. One was a new gear set for a guy with a modded LGT that seems to still be holding up. WPC can be used on bearings and other engine parts as well to reduce friction. It's like shot peeing, but with very small particles:

http://www.wpctreatment.com/about.htm
http://www.motoiq.com/MagazineArticles/ ... t-WPC.aspx

And then there are a few pistons that come with coatings, like mahles and the skirts on cosworths. They tend to wear off after awhile though. I think DLC is more durable?

Imprezive
Fourth Gear
Posts: 1428
Joined: Wed Jun 22, 2005 4:07 am
Location: Northern CA

Re: Coat your cams!

Post by Imprezive » Sat Jan 09, 2016 2:53 am

jamal wrote: It's like shot peeing, but with very small particles:
lol, typos are fun

I haven't heard of WPC until now. That seems pretty cool!
1992 T-Leg = 195whp 197wtq SOLD :(
1988 4Runner RIP
2006 Suzuki DRZ400sm
2007 Miata
1994 Miata
2003 WRX Wagon
2016 Mazda 3

Legacy777
Site Admin
Site Admin
Posts: 27514
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: Coat your cams!

Post by Legacy777 » Sun Jan 10, 2016 6:15 am

It appears to be something similar to work hardening a surface, but on a very small scale. This leaves the surface smoother and harder.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm

Post Reply