Blower Boost
Blower Model
6-71 Small
6-71 Large
8-71
10-71
12-71
14-71
Engine Displacement (CI)
Pulley Tooth Count Ratio
Bottom Pulley Teeth
Upper Pulley Teeth
Enter both pulley tooth counts to calculate and apply their drive ratio.
Drive Ratio Overdrive
0%
-35%
+55%