Now I know paper figures are by no means everything, but I have been looking at them none the less. It seems to be, the 070 has significantly more torque than the 076, and the same as an 088 (well, 0.1Nm less), while the 090 is quite a bit higher. My sources are the test reports in the reference
Sledrat's Greasey Lil Chainsaw thread, Page 28
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Thats me! Arborist, Chainsaw & Tree Work Forum
Jonsered Chainsaws, Page 56
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The 75EXJ091 is currently the Oregon® 75EXJ091G replacement, with a 3/8 pitch, .063 gauge, and 91 drive links for 28-inch cutting length bars using
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Oregon 20 Latest Pro Chisel Chain 72EXL 70 Drive Links (D70/E70 Compatible) Fits Echo CS-590 Timberwolf, CS-600 (2) : Patio, Lawn & Garden
Thats me! Arborist, Chainsaw & Tree Work Forum
Sledrat's Greasey Lil Chainsaw thread, Page 28
