I dont see anyone ever mention max impellar speeds when they are constantly going to smaller pulleys.
What are the maxes and how close are you guys getting to them or going over them??? What I hear most saying is that belt slip is the limiting factor and never any mention of the blowers capabilities. My main reason for going with the T Trim was because I was already just a tad over what Vortech says is the max impellar speed for the unit.