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The 3/8 was 2 seconds faster through the log.I cut all day today using Stihl 026 MOFO Worksaw and JMSSAWS 440. 70 degrees and sunny today.
I was using VP fuel with Red Armor at about 36:1.
Both saws ran real strong.
This video duo is comparing .325 and 3/8 Full Chisel chains on 18" bars in the same piece of wood with 7 pin rim sprockets. Both chains were hand filed prior to use by me. Both chains are fairly new.
First video is 026 running .325 chain.
Second video is 026 running 3/8 chain. Full Chisel, not pico.
Overall, the .325 seemed better to me. Smoother in the cut and held higher RPM'S. The 3/8 chain really grabbed the wood and loaded the saw much more than the .325 chain.
I wonder what woulda happened if you fattened the saw up a bit more. May have had more torque.
18" 3/8 RS is a lot for a 49cc saw, no matter how well it's built.