Yeah my piston hybrid doesn't accumulate much except for a blackening of the chamber walls. I think it has to do with not bursting the disk in a burst disk hybrid; which isn't a problem you get with piston hybrids. I think a majority of the build up clears out with a successful shot, it just so happened that the last shot in my BD hybrid didn't burst the disk and I didn't air out the chamber before opening it up.Fnord wrote:Crowley,
I've also noticed carbon buildup in hybrid chambers. Long ago when I did the sealed 2" sch40 test, I noticed some grime on the walls, having put perhaps 20 'shots' through it at various mixes. Ye olde piston hybrid accumulated it to a lesser degree, just not as much as you've shown.
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