Unlimited Roots Blower Advice

Can't believe I found the boost data for the SSI Series B. On a fresh blower just back from SSI with the end stripes at 33% OD I was seeing 35.1 lbs of boost at 8000 rpm, 37.3 lbs at 9000 with a max air discharge temp at the finish line of 121* F. At 30% OD I was getting 33.5 lbs at 8000 rpm. One thing I did notice on the blower was up around 40% the power gained rolled right off because of the HP required to turn it and the discharge air temp. There was not much point in going higher on OD. This was all on a 526 motor. With your bigger motor you might read a little lower boost but that also depends on the cam, valve size and flow data. Either way your blower needs work.