I agree with Sawyer Rob that resawing is mostly about quality of the bandsaw setup, specifically the way the guides are set up properly. That and a super sharp blade that won't wander without so much tension that you are literally torquing your saw out of allignment (on most bandsaws you can actually do that). That said, I've found that no matter what blade was on it, and no matter how I tweaked and setup my 14" bandsaw, with a 110V 1 1/2 hp motor it just doesn't have the guts to do much over 6-8 inches without really straining and going very very slow, especially if everything else is not dead on perfect. My Laguna (Italian) 220V 2 1/2 hp bandsaw does have the guts to resaw 12 inches without taking forever, and without wandering if I put a sharp 1 inch blade on it and the guides are setup for zero slop. Even then though, as I said before on this forum, when I try and use it as a mini bandmill milling small logs, it has a hard time with wet heavy dense "logs" much over 9-10 inches. It just doesn't have the power that a bandsaw needs to slice up logs. Woodshop bandsaws are also just not built for that... they quickly clog up with wet sawdust, which also eventually coats the tires and sides of the blade, which is very hard to remove, especially when it dries hard as nails.
