Gear Ratio Chart/Pinion Gear Selection - E-Maxx With 70T Spur |
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Internal
Gear Ratio |
7.88 |
4.88 |
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1st Gear |
2nd Gear |
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* Imex Dirt Dawg tires w/ 5.75" diameter |
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Roll-out* |
24.75575011 |
15.33097215 |
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Final Drive Ratios |
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Pinion |
FDR-1st (*:1) |
Pinion |
FDR-2nd (*:1) |
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12 |
45.96666667 |
12 |
28.46666667 |
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13 |
42.43076923 |
13 |
26.27692308 |
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14 |
39.4 |
14 |
24.4 |
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15 |
36.77333333 |
15 |
22.77333333 |
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16 |
34.475 |
16 |
21.35 |
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Recommended
Gearing |
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17 |
32.44705882 |
17 |
20.09411765 |
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Two 6-cell
Packs |
Two 7-cell Packs |
|
18 |
30.64444444 |
18 |
18.97777778 |
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70-72T Pinion |
14 |
12 |
|
19 |
29.03157895 |
19 |
17.97894737 |
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74-76T Pinion |
15 (Safest) |
13 (Safest) |
|
20 |
27.58 |
20 |
17.08 |
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**These are Novak's recommendations, not based on
chart |
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21 |
26.26666667 |
21 |
16.26666667 |
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22 |
25.07272727 |
22 |
15.52727273 |
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23 |
23.9826087 |
23 |
14.85217391 |
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24 |
22.98333333 |
24 |
14.23333333 |
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25 |
22.064 |
25 |
13.664 |
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26 |
21.21538462 |
26 |
13.13846154 |
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Final Drive: Roll-out Ratio** |
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*******THIS CHART IS A WORK IN PROGRESS. DO NOT USE IT |
Pinion |
FDR:RO - 1st Gear |
Pinion |
FDR:RO - 2nd Gear |
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TO
DETERMINE WHICH PINION TO USE.******* |
|
12 |
-21.21091656 |
12 |
-13.13569452 |
|
13 |
-17.67501912 |
13 |
-10.94595093 |
|
14 |
-14.64424989 |
14 |
-9.06902785 |
|
15 |
-12.01758322 |
15 |
-7.442361184 |
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16 |
-9.71924989 |
16 |
-6.01902785 |
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17 |
-7.691308713 |
17 |
-4.763145498 |
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18 |
-5.888694334 |
18 |
-3.646805628 |
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19 |
-4.275828837 |
19 |
-2.647975219 |
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20 |
-2.82424989 |
20 |
-1.74902785 |
|
21 |
-1.510916556 |
21 |
-0.935694517 |
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22 |
-0.316977162 |
22 |
-0.196300578 |
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23 |
0.773141415 |
23 |
0.478798236 |
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24 |
1.772416777 |
24 |
1.097638816 |
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25 |
2.69175011 |
25 |
1.66697215 |
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26 |
3.540365495 |
26 |
2.192510611 |
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Projected Top Speed (MPH) |
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HV Maxx 4400 |
HV Maxx 6.5 |
HV Maxx 4.5 |
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12-cell |
14-cell |
12-cell |
14-cell |
12-cell |
14-cell |
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32.31352 |
37.69911 |
22.76635 |
26.56074 |
35.25112 |
41.1263 |
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** Novak HV Maxx
4400 = 63,360 RPM @14.4V 73,920 RPM @
16.8V |
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** Novak HV Maxx
6.5 = 44,640 RPM @ 14.4V 52,080 RPM @
16.8V |
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** Novak HV Maxx
4.5 = 69,120 RPM @ 14.4V 80,640 RPM @
16.8V |
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