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Dak03ta
Dodge Dakota
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12/20/2002
09:57:20
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 Subject: Please Explain Fan Removal Benefits
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Message:
As well as any possible problems...
Thanks
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QCOwner
Dodge Dakota
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12/20/2002
10:27:18
| RE: Please Explain Fan Removal Benefits
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I assume that you mean removing the mechanical engine-driven fan and just relying on the electric fan...
Advantage for you:
1. The gain of an insignificant amount of horsepower (any gain would be very low since the fan will not be drawing much power unless it is really needed, due to the fan clutch). If the engine is hot enough for the mechanical fan to engage then you will wish you had not removed it. In this case the electric fan alone will not be even close to adequate, do not believe anyone who says that it is.
Advantage for the dealer:
1. Gets to charge you a lot of money for repairs to to overheating damage.
2. Gets to laugh at you for intentionally crippling your cooling system for no good reason.
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Canucker
Dodge Dakota
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12/20/2002
10:28:30
| RE: Please Explain Fan Removal Benefits
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Message:
Benifit: less rotating mass = less mass for the engine to accelerate = more hp to the wheels.
Granted it's not as substantial as people make it out to (though it used to be a huge gain back in the muscle car days with solid connected fans .. ~15hp you could get on some).. but you'll still get a few hp, especially in the upper RPMs.
Possible Problem: overheating .. if you don't hook up and electric fan, or rewire your stock electric fan, you're engine will heat up to ~210 degF before the stock fan kicks in and cools it a bit ... also, when loaded (towing up hills or something), the stock electric fan _might_ not be able to cope with the extra heating load ... I haven't run into this problem yet and I haven't heard of anyone else that has, but I thought I'd give you the heads up anyway.
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QCOwner
Dodge Dakota
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12/20/2002
10:45:43
| RE: Please Explain Fan Removal Benefits
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Message:
>also, when loaded (towing up hills or something),
>the stock electric fan _might_ not be able to cope
>with the extra heating load ... I haven't run into
>this problem yet and I haven't heard of anyone else that
>has, but I thought I'd give you the heads up anyway.
I have had the mechanical fan activate only twice in two years, once while towing in hot weather and once while driving normally in stop-and-go traffic in hot weather (I live in Texas so I do mean hot). In both cases the electric fan could not even come close to providing adequate cooling, but when the mechanical fan kicked in (you can really tell when it happens) the coolant temperature dropped back to normal within 60 seconds. If I had removed the fan I would have not been able to continue to drive in either of these cases. Maybe you might be able to get away with removing the fan if you lived in a very cool climate, but you would be risking being stranded if you ever found yourself in hot driving conditions. Considering the truly negligible gain involved, not worth it IMO, not even close.
But, your truck, your choice...
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Canucker
Dodge Dakota
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12/20/2002
11:18:29
| RE: Please Explain Fan Removal Benefits
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Message:
yeah agreed ... I didn't get nearly the gain I was expecting.
BUT:
1) I always keep the mechanical fan in the box incase I need it
2) It is a cool climate here and rarely gets hot
3) I paid $50 for a thermostatic switch, so I might as well use it
Also, FWIW, if the mechanical fan is bolted on, its turning .. it doesn't simply stop, and then decide to start turning when it gets hot ... it just turns faster when it gets hot (turns closer to engine speed, rather than the 650-1000RPM it would normally turn at)
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