Which has higher compression after break in OEM Stihl or Caber?

[209CrownKing]

Has anyone ever done a side by side comparison of OEM vs Caber to see which ring provides the highest comp numbers after break in. Just curious to see other people's experience. My arm tells me Caber wins in this department but I could be wrong. If they do have higher comp readings I would assume that would be due to increased ring tension. Would that mean Cabers are harder on the cylinders and would cause increased wear and rings to fail faster?

 

[Marley5]

I can tell you that on a vehicle when you try to cheap out on economy rings like I did, compression readings suffer.
They were thinner and didn't fill the piston groove like OEM.
The ring itself is made of a harder material than the cylinder wall so it can seat and build compression...... your good.

 

[Mad Professor]

How would you do this test?

Put in OEM run it then test compression, then take it down again and the same with Cabers.

I don't think anyone would want to do that.

If you used DIFFERENT saws , the results would be meaningless. An exception would be two BRAND NEW saws, one of which got a set of Cabers.