So I gave my 572 Husqvarna a good run this afternoon after work. Bucked up 4 cord of fire killed white spruce in a couple hours. Ran 4 tanks of saw gas thru it. I had put an 8 tooth 3/8 sprocket rim on it last night. 28" Husqvarna/ Oregon bar. 50 ga. Ran a loop of full comp X Cut chisel chain. I had taken 3 licks with a rider file off the depth guages. After a couple tanks I took another 4 licks off. I am very pleased with the saw. It's fast. And strong. I would like to run it against a 462 or 461 Stihl. It out cuts a stock 460 and cuts as fast as my Mike Lee modified 460. Very smooth ! Heated handles are Awesome ! The X Cut chisel chain was very pleasing also. While it's not perfectly chisel ground or filed chain. It is very impressive. And this chain has 7 tanks of saw gas on it. I haven't touched the cutters with a file yet. I do need to file it now as there was some mud on one of the last logs I bucked up. It's still cutting but needs filed or ground. Friend of mine here has a 451C Simington chisel grinder so I'll go hone it up on his grinder. The 8 tooth sprocket really helped bring it into where I like a saw to cut. The 7 tooth was just slow and needed a long bar full of wood to maximize what it was. The stuff I was bucking was 4" to 16" diameter. The guy was feeding logs with a skid steer with forks on it, 20' long logs. He didn't have to sit idle very often. Once I got a few bucked up , he just set more on what I had bucked. It kept us busy and kept the chains up out of the ground! Sorry I didn't get any pics.
I run a eight pin with 20" bar on my ported 572 when I am working a log pile. That is a lot of fun. 4 cord in two hours is serious cutting
couldn’t agree more with the 8 pin and 20” bar. Mine has extra sausage also. I was running 24” on the 7 pin. There is a quite a lot grin Gaines making the change
Ya, it Really wakes it up. I don't have a tack so I don't know the actual # but the rpm feels like when I cut with 044s. It's Fast. It does have a drop down in rpm on bigger cuts . Just like the yt vids I've watched. Possibly having it hopped up will remove some of that. BUT, at this point I don't know that I will. Instead, I'll put that money toward a 451 C . I've cut a lot of timber with the 046 and 460 Stihls. And 044s and 372s. Many millions of board feet . I have a good idea how this saw will act with a 36" bar on it. BUT, I'm not fallin timber for a living now so I probably won't be hanging a long bar on it anytime soon. A 28" is a good compromise for the size wood I'll be cutting. And it will fit on the snow machine easier.
I've been happy with running an 8-pin and 28" bar on my 500i, in not the hardest wood on earth, and she rips pretty well. With a 7-pin in wood 18" and under the 500i is slow, bounces off the limiter and or four strokes like crazy.
About 30 thou with full comp. 40 k with full skip . At least for me with Alaskan species. If I had the time. I would just modify my 451A to take a new ( larger) motor. But time off is taken up with building.
If I find a situation where I'm in bigger wood, first thing I'll try is richen up the high speed jet a bit. See if that changes things. I know it has auto tune, so I'm not sure I can even do that. I'll look into it . Or just deal with it. It's not like it's a big deal. Just something I noticed.
