gemniii
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Or Kw?
Has anyone developed a general rule of thumb for the power required to run X inches (or 2.54Xcm) of bar length, with 0.050 (why is it usually 0.050 instead of just 0.05?) and/or 0.063 SHARP ripping chain, full comp against Y inches of hardwood?
Example - my 4.7HP w/28" bar glides thru a 14" slab, bogs slightly on a 21" on red maple.
My 7HP w/28" bar glides thru an 18" on red maple haven't got a wider piece yet to see if it bogs.
Extrapolation indicates that I should expect "bogging" with my 660 if I try to cut over a 30" wide slab, and 36" will be a slow cut.
/edit - I'm about to buy a bigger bar, don't want to spend the extra $$ for a 42" if I have to get an 880 to use it.
Has anyone developed a general rule of thumb for the power required to run X inches (or 2.54Xcm) of bar length, with 0.050 (why is it usually 0.050 instead of just 0.05?) and/or 0.063 SHARP ripping chain, full comp against Y inches of hardwood?
Example - my 4.7HP w/28" bar glides thru a 14" slab, bogs slightly on a 21" on red maple.
My 7HP w/28" bar glides thru an 18" on red maple haven't got a wider piece yet to see if it bogs.
Extrapolation indicates that I should expect "bogging" with my 660 if I try to cut over a 30" wide slab, and 36" will be a slow cut.
/edit - I'm about to buy a bigger bar, don't want to spend the extra $$ for a 42" if I have to get an 880 to use it.
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