Don't you know this shaft coating maybe…

 

DLC is a diamond-like coating that reduces friction. My pins are DLC pins. That is the only part of my build that uses DLC.

The oil shedding coating is from Swain Tech. The moly coating on my piston skirts is from the piston vendor. There is also oil shedding coating on my windage tray and crank scrapper from Swain Tech.

I have an oil shedding coating on my crankshaft counterweights, but I think that's from Techline possibly. It looks different than the SwainTech coating.




Don't know what that broze-ish coating is. Is that F1? Maybe something super-proprietary...don't know.

 

Thank you anyway but I'm asking about your choice : do yo feel /think that this swain tech coating is better for oil shedding than DLC? Or you just chose this instead of that? There are so many modern coatings and it is not easy to choose sometimes ..That is a reason of my question..
It is WEC nissan axle(LMP1 ) but this coating is common for any lmp1/f1 car etc.

 

I have never heard of DLC being used as an oil-shedding coating. Maybe it is, but that would be the first I've heard of it. It's also super-expensive. Those 4 piston pins that were DLC coated were like $300 for a set of 4.

There are a few manufacturers of oil shedding coatings...SwainTech and Techline are two. I have only heard of DLC used in piston pins for friction/heat reduction.

Hope that answers your questions.

 

It is possible to find some articles in highpowermedia.
Thank you for your answer.

 

Based on this one article, the popularity of DLC goes like this:

1) Piston pins
2) Valve springs and other valvetrain components
3) Crankshafts (journals, I'm assuming)
4) Gears

https://www.highpowermedia.com/blog/...racing-engines

I don't see anywhere in there where it mentions DLC for oil shedding. And DLC is super expensive, so I think it's probably most common to find pins coated outside of F1.

 

Updated thread with pin specs. When I talked to the piston vendor, they mentioned that the pins should be ok for what I plan on running. But I'm open to going back to a heavier pin.

Yes. I'm looking forward to getting her up and running. Now I'm one step closer. Still curious how much (if any) the HTZ wheel is worth over your HTA...and seeing if all the porting made a difference (both hotside and coldside).

 

I coat studs and suspension parts with DLC,it is expensive,but not more than race team logistics or brand attributes..Ill try find this article in HPM(I part about oil shading from f1 head cover).
Too many articles about DLC there..

 

Suspension parts to reduce friction makes total sense to me

As does coating bolts and nuts.

I just think there are way more economical ways to get oil shedding properties other than DLC. But hey, I'm just a car guy and not an engineer.

 

PVD coatings are popular in motorbike as stock protection.. too expensive, but it is possible sometimes to find the way how to reduce this amount : better to pay for 1 whole chamber and to know how to place each part inside.

 

At this point Erik, I'm pretty sure you'll coat a dog if it sits near you for too long

 

Hello. My name is Erik. And I'm addicted to coatings and car parts.

 

Thanks to English Racing I got my R2 MIVEC billet cams in. They're a little heavy I know gun drilling them won't affect moment of inertia too much, but hey, I can't stop messing with parts. Also going to get them WPC treated, but I have a call into GSC to make sure that won't compromise whatever they're coated with.

 

Like 3 days after my 6speed bit the dust. Now on the hunt for a 5 speed

 

I think I need an intervention. I was going to rub in a Techline coating for friction reduction on the cylinder bores...but I couldn't find any reviews online about it which made me nervous.

So what did I do? Made a little visit here to get my cylinders treated:



Met Izumi in person. Super nice person. Now, if I hear one more person tell me about reduced mileage on a stroker because of increased side loading, I'm gonna punch someone lol.

This is the last step before assembly. Going away for two weeks and when I get back, I'll be taking everything down to Aby.

He'll do initial measurements and we'll figure out the right bearings (using Cosworth main and rod bearings, so the shells come in different sizes). Once we know what is going where, we'll ship them off to be WPC treated too and then final assembly. Aby will be installing the head as well, so we'll degree the cams too.