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| OzECruisers General Discussions E/N/D vehicles General Discussion ONLY. NO TECH THREADS |
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18-05-2007, 05:23 PM
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XD197
Join Date: Sep 2006
Location: Riverton, WA
Posts: 498
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After i got the eb fitted with thermos i took it to the drags and improved on my 15.77 to a 15.42 so the fans made a worthwhile improvement over the propellor and i dont have to listen to the poxy racket made by the old fan.
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18-05-2007, 07:07 PM
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AU II XR8
Join Date: Mar 2006
Location: melbourne
Posts: 978
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sounds good. but can someone tell me what the purpose of the clutch fan is, cause iv never realy known, and also how do the thermos improve over the clutch fan.
my guess is that the engine has to turn the big fan, where as the the thermos run them selves, correct?
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AU XR8 II ute XD FAIRMONT GHIA 302 XA FAIRMONT 302 TOPLOADER |
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19-05-2007, 04:20 PM
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Banned
 
Join Date: Dec 2004
Posts: 8,303
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Clutch fan - fan with a viscous clutch hub which attaches to one of the engine pulleys. When the engine bay heats up, the viscous clutch hub engages so the fan isn't freewheeling. The fan draws extra air through the radiator, cooling the coolant. The clutchfan saps power from the engine by acting as a drag on the pulley system.
Thermofans - they're electric and aren't attached in any way to the pulley system. They're activated by a temp sensor tapped into the coolant, and although they don't sap power from the pulley system, they can draw power from the battery/alternator thus producing a different type of load on the whole system. But they're generally considered better than clutchfans. |
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19-05-2007, 10:56 PM
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AU II XR8
Join Date: Mar 2006
Location: melbourne
Posts: 978
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ah ok. so wouldnt the clutch fan operate when things are hot? i only ever hear mine when things are cold?
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AU XR8 II ute XD FAIRMONT GHIA 302 XA FAIRMONT 302 TOPLOADER |
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19-05-2007, 11:21 PM
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Regular Member
Join Date: Apr 2006
Location: Eastern Melb.
Posts: 346
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Quote:
mine works when first started on a cold morning, its to do with the viscous clutch, probably because of the very low temp, or having been sitting still and not spinning for a while (eg starting on cold mornings after sitting still all night) mine stops after driving a block or so...
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FG Mk II XR6T Best Toy Ever! FG Mk II XR6T Lightning Strike, 6 Speed Auto,, Dark Tint Awesome toy for Grown Ups! |
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Eb back to the drags
Linear Mode
