Page 56 of Weiand Superchargers by Holley Performance Products, Inc.

superchargers pulley ratios belts supercharger accessories 1/2 pitch drive pulleys and ratios 32 7029-32 pulley p/n driven top pulley tooth count 33 7029-33 34 7029-34 35 7029-35 36 7029-36 37 7029-37 38 7029-38 0 61 7109-61 0 39 7029-39 0.97:1 -3 0 63 7109-63 0.97:1 -3 0 drive bottom pulley tooth count 32 33 34 35 36 37 38 39 7029-32 7029-33 7029-34 7029-35 7029-36 7029-37 7029-38 7029-39 1.00:1 0.97:1 0.94:1 0.91:1 0.89:1 0.86:1 0.84:1 0.82:1 -6 -9 -11 -14 -16 -18 0 -3 1.03:1 3 0 0.97:1 0.94:1 0.92:1 0.89:1 0.87:1 0.85:1 -3 -6 -8 -11 -13 -15 0 0.97:1 0.94:1 0.92:1 0.89:1 0.87:1 -3 -6 -8 -11 -13 0 0.97:1 0.95:1 0.92:1 0.90 -8 -10 -3 -5 0 0.97:1 0.95:1 0.92:1 -5 -3 -8 0 0.97:1 0.95:1 -3 -5 1.06:1 1.03:1 6 3 1.09:1 1.06:1 1.03:1 3 9 6 1.13:1 1.09:1 1.06:1 1.03:1 6 3 13 9 supercharger service parts 1.16:1 1.12:1 1.09:1 1.06:1 1.03:1 9 6 3 16 12 1.19:1 1.15:1 1.12:1 1.09:1 1.06:1 1.03:1 12 9 6 3 19 15 1.22:1 1.18:1 1.15:1 1.11:1 1.08:1 1.05:1 1.03:1 15 11 3 8 5 22 18 note negative percentages indicate underdrive ratios 8mm pitch drive pulleys and ratios 50 7109-50 pulley p/n 51 7109-51 driven top pulley tooth count 52 7109-52 53 7109-53 54 7109-54 55 7109-55 57 7109-57 0 59 7109-59 0 50 7109-50 7109-51 7109-52 7109-53 7109-54 7109-55 7109-57 7109-59 7109-61 7109-63 0 1.02:1 2 0.98:1 0.96:1 0.94:1 0.93:1 0.91:1 0.88:1 0.85:1 0.82:1 0.79:1 -6 -4 -7 -9 -12 -15 -18 -21 -2 0 0.98:1 0.96:1 0.94:1 0.93:1 0.89:1 0.86:1 0.84:1 0.81:1 -4 -2 -6 -7 -11 -14 -16 -19 0 0.98:1 0.96:1 0.95:1 0.91:1 0.88:1 0.85:1 0.83:1 -2 -4 -5 -9 -12 -15 -17 0 0.98:1 0.96:1 0.93:1 0.90 0.87:1 0.84:1 -2 -4 -7 -10 -13 -16 0 0.98:1 0.95:1 0.92:1 0.89:1 0.86:1 -2 -5 -8 -11 -14 0 0.96:1 0.93:1 0.90 0.87:1 -4 -7 -10 -13 0.97:1 0.93:1 0.90 -7 -10 -3 0.97:1 0.94:1 -6 -3 drive bottom pulley tooth count 51 52 53 54 55 57 59 61 63 1.04:1 1.02:1 4 2 1.06:1 1.04:1 1.02:1 2 6 4 1.08:1 1.06:1 1.04:1 1.02:1 2 4 8 6 1.10:1 1.08:1 1.06:1 1.04:1 1.02:1 4 6 2 10 8 1.14:1 1.12:1 1.10:1 1.08:1 1.06:1 1.04:1 8 10 6 4 14 12 1.18:1 1.16:1 1.13:1 1.11:1 1.09:1 1.07:1 1.04:1 13 11 9 7 4 18 16 1.22:1 1.20:1 1.17:1 1.15:1 1.13:1 1.11:1 1.07:1 1.03:1 17 15 13 11 7 22 20 3 1.26:1 1.24:1 1.21:1 1.19:1 1.17:1 1.15:1 1.11:1 1.07:1 1.03:1 21 19 17 15 11 3 26 24 7 note negative percentages indicate underdrive ratios 116 www.weiand.com

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