[GREATGTO]

Motor oil is a coating, try running your engine without any and see if it makes a difference.

[mike leech]

Originally Posted by GREATGTO

Motor oil is a coating, try running your engine without any and see if it makes a difference.

[LiL Jack]

Originally Posted by mike leech

What do you expect.

[Jeff Kinsler]

Originally Posted by LiL Jack

What do you expect.

I expected a stupid answer from GREATGTO but damn the motor oil thing was the stupidest thing ever.

[Tom Vaught]

Motor Oil is a Lubricant, Motor Oil is a Coolant, Motor Oil is a Hydraulic Fluid, but Motor Oil as a coating, while true (it does keep parts from rusting), is way down on the list of what it is used for in an engine. I will give you a D-Minus for that answer, not an F but darn close to it.

Tom V.

[Half-Inch Stud]

Thermal barrier coatings for combustion chambers: probably see a HP benefit with aluminum heads. Ping?

Friction reduction coatings; probably see a HP benefit in the rear gearset & transmission, maybe in the engine. Seems to mee that the high-loading surfaces are better-off with a polish and Redline lubrication.

[mgarblik]

Agree, the anti-friction coatings must do something, because almost all the OE's use them on piston skirts. They do it for mileage and emissions. Coating allows tighter piston to wall clearance which means fewer hydrocarbon emissions. Anti-friction results in less heat and more HP. The real question which nobody can put a number on, including the coating manufacturers and sellers, is how much HP gain. Is it 2 HP on a 1000 HP engine?, 8 HP? They never want to put a real number on it. Certainly isn't anywhere near 50 HP or as I said, sanctioning bodies would be all over it. We run "hard anodized" pistons in our car. That could be considered a coating, I guess. We do it to provide a greater margin of error in our tuning. The soft aluminum piston is shielded from melting a fraction of a second longer with the coating than without. Think of it as the difference between a regular fuse and a "slow blow" fuse. So in a sense it makes more HP by remaining a piston longer than a glob of melted aluminum. Coatings have their place in an engine, but there are many more cost effective places to spend $$$ first.

[Skip Fix]

You definitely can get coatings poor if you do everything.

Seeing sludge on windage trays and in oil pans even with regular oil changes I usually get mine teflon coated. Piston skirts since even Sealed Power coats them and piston tops. Usually bearings partly because mine sit for a couple of months before they get started and figure cold start it could help. It helps PolyDyn is local and I can drop stuff off and not have shipping costs. They do headers also now.

But the new 455 for the 81 got no coatings but the pan.

[mike leech]

Originally Posted by Half-Inch Stud

Thermal barrier coatings for combustion chambers: probably see a HP benefit with aluminum heads. Ping?

Friction reduction coatings; probably see a HP benefit in the rear gearset & transmission, maybe in the engine. Seems to mee that the high-loading surfaces are better-off with a polish and Redline lubrication.

With a micro polish and a coating coating like microblue on the ring gear and bearings it's possible to run thinner dif fluid. Possible help there.

Problem is pro stock re-Coats often I'm told. By a very reliable source.

[Half-Inch Stud]

Originally Posted by mike leech

With a micro polish and a coating coating like microblue on the ring gear and bearings it's possible to run thinner dif fluid. Possible help there.

Problem is pro stock re-Coats often I'm told. By a very reliable source.

Mike, hmmmm, if your ring-pinion is still swimming in 80-90W then please look into draining it ut, wiping everything clean, solvent spritz, then reload with the Redline stuff. Definite reduced temperatures.
....and reduced parasitic HP losses.

[chiphead]

What do you guys think of Swain's coatings for piston skirts to reduce piston to wall clearance?

[PAUL K]

Originally Posted by chiphead

What do you guys think of Swain's coatings for piston skirts to reduce piston to wall clearance?

Works great for that application.

[Money Pit]

https://www.line2linecoatings.com

Check them out.

[mike leech]

Originally Posted by Half-Inch Stud

Mike, hmmmm, if your ring-pinion is still swimming in 80-90W then please look into draining it ut, wiping everything clean, solvent spritz, then reload with the Redline stuff. Definite reduced temperatures.
....and reduced parasitic HP losses.

I'm running Dewco lube. If I didn't know better I would think it was 10 W 30. Super light weight

[Scott Roberts]

I saw a commercial once where you could run slick 50 and drain the oil out of your motor with no damage....

[Aaron Quinton]

The skirt coatings are there too reduce the effective piston to wall clearance while dealing with more bore distortion. It reduces noise without scuffing. That is it.

If you think about it, the friction in the power cylinder boils down to rings rubbing in the bore and the skirt to wall clearance shearing oil. Tightening the clearance up reduces oil film thickness increasing friction.

Originally Posted by mgarblik

Agree, the anti-friction coatings must do something, because almost all the OE's use them on piston skirts. They do it for mileage and emissions. Coating allows tighter piston to wall clearance which means fewer hydrocarbon emissions. Anti-friction results in less heat ..

[Half-Inch Stud]

Originally Posted by mike leech

I'm running Dewco lube. If I didn't know better I would think it was 10 W 30. Super light weight

Check the Red Line stuff; likely thinner, likely slipperier, likely never get dark colored after many runs.

[Tom Vaught]

Custom Lubes and Coatings have a place, putting them in the right places is sometimes a learning process.

Tom V.

[Jeff Kinsler]

So I shouldn't be running 80w 90?

[PAUL K]

Originally Posted by Jeff Kinsler

So I shouldn't be running 80w 90?

Yes....otherwise you'd be too fast because you have E-heads.