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Andre's RPM/Alternator Output Chart |
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Andre' says I should have a link to his Excel Spreadsheet of this cuz he says you'll know what to do with it. So here it is, have fun! |
RPM (1) Watts Avail (2) MPH 1st 2nd 3rd 4th 5th 1st 2nd 3rd 4th 5th 10 1,723 1,088 816 639 567 119 75 56 44 39 15 2,585 1,633 1,224 958 850 178 113 84 66 59 20 3,447 2,177 1,633 1,278 1,134 238 150 113 88 78 25 4,308 2,721 2,041 1,597 1,417 297 188 141 110 98 30 5,170 3,265 2,449 1,917 1,701 345 225 169 132 117 35 - 3,809 2,857 2,236 1,984 - 263 197 154 137 40 - 4,354 3,263 2,555 2,267 - 300 225 176 156 45 - 4,898 3,673 2,875 2,551 - 338 253 198 176 50 - 5,442 4,081 3,194 2,834 - 345 282 220 196 55 - 5,986 4,490 3,514 3,118 - 345 310 242 215 60 - - 4,898 3,833 3,401 - - 338 264 235 65 - - 5,306 4,153 3,685 - - 345 287 254 70 - - 5,714 4,472 3,968 - - 345 309 274 75 - - - 4,791 4,252 - - - 331 293 80 - - - 5,111 4,535 - - - 345 313 85 - - - 5,430 4,818 - - - 345 332 90 - - - 5,750 5,102 - - - 345 345 95 - - - - 5,385 - - - - 345 100 - - - - 5,669 - - - - 345 105 - - - - 5,952 - - - - 345 |
Excess Watts After Static Load Accessories Powered Sufficiently 1st 2nd 3rd 4th 5th 1st 2nd 3rd 4th 5th MPH 28 - - - - - - - - - 10 88 22 - - - OK - - - - 15 147 60 22 - - OK - - - - 20 207 97 50 20 7 OK OK - - - 25 255 135 79 42 27 OK OK OK - - 30 - 172 107 64 46 - OK OK - - 35 - 210 135 86 66 - OK OK OK OK 40 - 248 163 108 86 - OK OK OK OK 45 - 255 191 130 105 - OK OK OK OK 50 - 255 219 152 125 - OK OK OK OK 55 - - 248 174 144 - - OK OK OK 60 - - 255 196 164 - - OK OK OK 65 - - 255 218 183 - - OK OK OK 70 - - - 240 203 - - - OK OK 75 - - - 255 223 - - - OK OK 80 - - - 255 242 - - - OK OK 85 - - - 255 255 - - - OK OK 90 - - - - 255 - - - - OK 95 - - - - 255 - - - - OK 100 - - - - 255 - - - - OK 105 |
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Stator output 345 watts at 5,000 RPM Watts/RPM=0.07 |
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Static Loads (3) Headlight 60 Tail light 5 Fr. Run. lights 10 License light 5 Speedo 3 Safety Margin 7 Total 90 watts |
Electrical Accessories Vest 44 Gloves 22 Item 3 – Item 4 – Item 5 – Total 66 |
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Note that there are also 68 watts of intermittent loads (signals, indicators) |
Add up the wattages of your own accessories, and check the chart above for an OK. |
| (1) The RPMs were taken from a website (can't remember which) that was doing |
| a comparison of RPM with the stock 41-tooth sprocket relative to RPM with |
| a smaller sprocket. The RPMs assume STOCK sprocket. |
| (2) The wattage available is based on the assumption (right or wrong) that the |
| stator's output is linear across the RPMs. The shop manual quotes a |
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maximum output of 345 watts at 5,000 RPM. Therefore, available watts is 345/5000*RPM. |
| (3) The static loads were taken from the shop manual. |