BRP ski-doo MACH Z 1000 SDI, Handbook

Page: 323 / 493

SECTION 06 - DRIVE SYSTEM
MMC2005-001_06A.FM
06-61
A little known fact that can seriously impair a rac-
er’s performance is the misconception that the
factory stated peak horsepower RPM or the peak
power point you find on a dyno is the correct figure
to clutch your race sled to.
Generally, this is not the case. The figures that are
printed by the factory are determined on a dyna-
mometer in clinical test conditions.
100 engine RPM change, equals approx. 1 mph change.
top speed in MPH
engine RPM
clutch ratio
---------------------------------
teeth, top sprocket
teeth, bottom sprocket
-------------------------------------------------------------
(pitch of track No. of teeth on drive sprocket)
×
12
-----------------------------------------------------------------------------------------------------------------------------
60
5280
-------------
× × ×
=
MXZ GEAR RATIO VS SPEED
ENGINE RPM = 8400 1 - 1 CLUTCH RATIO 9 TOOTH 10 TOOTH
TOP BOTTOM RATIO CHAIN MPH MPH
27 43 1,59 76 113 126
26 43 1,65 76 109 121
25 43 1,72 76 105 117
24 43 1,79 74 101 112
23 43 1,87 74 96 107
22 43 1,95 74 92 103
21 43 2,05 74 88 98
20 43 2,15 74 84 93
19 43 2,26 72 80 89
27 44 1,63 76 111 123
26 44 1,69 76 107 118
25 44 1,76 76 103 114
24 44 1,83 76 98 109
23 44 1,91 74 94 105
22 44 2,00 74 90 100
21 44 2,10 74 86 96
20 44 2,20 74 82 91
19 44 2,32 74 78 87
27 45 1,67 78 108 120
26 45 1,73 76 104 116
25 45 1,80 76 100 111
24 45 1,88 76 96 107
23 45 1,96 76 92 102
22 45 2,05 76 88 98
21 45 2,14 74 84 94
20 45 2,25 74 80 89
19 45 2,37 74 76 85
27 46 1,70 78 106 118
26 46 1,77 78 102 113
25 46 1,84 76 98 109
24 46 1,92 76 94 105
23 46 2,00 76 90 100
22 46 2,09 76 86 96
21 46 2,19 76 82 92
20 46 2,30 74 78 87
19 46 2,42 74 75 83
27 47 1,74 78 104 115
26 47 1,81 78 100 111
25 47 1,88 78 96 107
24 47 1,96 78 92 102
23 47 2,04 76 88 98
22 47 2,14 76 84 94
21 47 2,24 76 81 90
20 47 2,35 76 77 85
19 47 2,47 74 73 81
MXZ GEAR RATIO VS SPEED
ENGINE RPM = 8400 1 - 1 CLUTCH RATIO 9 TOOTH 10 TOOTH
TOP BOTTOM RATIO CHAIN MPH MPH