timberwolf
Addicted to ArboristSite
I am wondering about the relationship between HP and cut times.
Lets take a 4hp stock 50cc saw and a 10 inch block of softwood, say it cuts it in 4 seconds.
So if we now mod the saw, and it cuts the wood in 3 seconds, that is a 25% reduction in cut time. So is it safe to say that this is now a 5 hp saw?
Or is it just not that simple, what if the for sake of argument the saw produced the same 4 hp but instead of producing it a 10,000 rpm, it produces it at 12,500, a 25% increase in chain speed? But then to produce 4hp at a higher rpm torque would be lower, and would the saw be able to be pushed as hard and cut as much per rev?
Might need to put the good old wood dyno up against one of the new high tech ones.
Lets take a 4hp stock 50cc saw and a 10 inch block of softwood, say it cuts it in 4 seconds.
So if we now mod the saw, and it cuts the wood in 3 seconds, that is a 25% reduction in cut time. So is it safe to say that this is now a 5 hp saw?
Or is it just not that simple, what if the for sake of argument the saw produced the same 4 hp but instead of producing it a 10,000 rpm, it produces it at 12,500, a 25% increase in chain speed? But then to produce 4hp at a higher rpm torque would be lower, and would the saw be able to be pushed as hard and cut as much per rev?
Might need to put the good old wood dyno up against one of the new high tech ones.