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| snowmobile setups for grooming; setups | |
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| Tweet Topic Started: Dec 27 2012, 08:49 PM (829 Views) | |
| sno-cat | Dec 27 2012, 08:49 PM Post #1 |
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sno-cat
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I have a polaris 440 trail led that I am going to pull a small drag with. I am going to install an auxilary radiator with an electric fan so there wont be any cooling problems. What I am worried about is burning belts. Is there anything I should do to the clutching or gearing? Any other adjustments? I am not going to be doing very much hard work just some small drags. |
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| vtg | Dec 27 2012, 09:24 PM Post #2 |
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Advanced Operator
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What year is your Polaris Indy Trail? If it is newer than around 1995 or so, it'll have the larger 250 watt charge coil which should be able to handle a small fan. But it's likely best to keep the bar warmers and thumb warmer switched off to conserve electrical power. I have an electric fan for cooling the clutches on my Polaris Grizzly but it only has a 150 watt charge coil and the fan taxes the charging system too much. I'd suggest gearing the sled down by at least one tooth on the top sprocket and set the driven up to keep the belt as tight as you can without it trying to creep at idle. That'll ensure the clutches engage with the belt in the lowest position in the primary clutch to maximize your bottom end power. It might also be wise to install an EGT guage so you can have a good idea how hard you are working that fan cooled engine. |
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| vtg | Dec 27 2012, 09:28 PM Post #3 |
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Advanced Operator
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Guess I was wrong in assuming your Polaris is fan cooled? You didn't really clarify exactly what model it is. obviously it must be a liquid if you are mounting a radiator. My mistake. The rad will be a good idea when running hardpack pulling a drag.
Edited by vtg, Dec 27 2012, 09:31 PM.
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| sno-cat | Dec 27 2012, 10:13 PM Post #4 |
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sno-cat
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Thanks for the suggestions it is a liquid cooled 440 engine and the radiator is going on the rear by where the heat exchanger is and the power will come from the wires that run the rear light. Its not a very big fan so it wont suck very much power.I dont know the exact model because it was modified to run sno-cross for several years before it was retired to a trail sled and now a groomer. Thank you for the suggestions and I will gear down the clutch.
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