Down at Tree Monkey's today. Scott and I both ran the ported 661 with 36” tsumura bar - .404 104dl chains...
8pin 404 RSLF
8pin 404 RS
7pin 404 RS
7pin 404 RSLF
We ran each of them. 8pin responded to hand pressure too much. It still cut well...saw has amazing power. But we both knew it right away when we started playing with 7pin RS. It pulled nice. It pulled consistently. Wasn't affected by hand pressure like 8pin. ...this setup just runs very very nice on this saw. We both agreed this was the best setup for the oil test to produce consistent running conditions and show any changes in power due to changing oil and or ratios.
So that’s the final final for the oil test - 36” tsumura with 104dl 7pin 404 RS.
I figure I'll need about 45 chains for the entire test.
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oils and ratios to be tested...
Schaeffers 32:1 36:1
Mobil 1 32 36 40 44?
Belray si-7 – 32:1 36:1
HP2 32 36 40
Yamalube 32 40 – just to show it sucks
Super tech 32 36 40 44?
Dumonde 32 36 40
H1r 32? 36 40 44?
800 off rd 32 36 40 44?
Amsoil 32 40 44? - im thinking 32 will run coolest and 40 will run hotter then I won’t have to do 44
K2 – 32 36 40
R50 – 32 36 40
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will take the winning or best ratio for each oil and put them up against each other.
winning = best times, and coolest temps. Plan to have at least 2 guys doing the test cuts maybe 3...and get multi opinions on how they run as well.