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05-30-2020, 04:48 PM
(This post was last modified: 05-30-2020, 04:50 PM by B and C.)
If you delete the cookies on your computer, this behaviour is to be expected.
Edit to add: My fan clutch is engaged when first started cold. It takes about a minute before it lets go and acts normal.
Brian
2000 Roadtrek 200 Versatile "The Beast" (it has been tamed hopefully) I feed it and it doesn't bite me.
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My fan is the same, after a minute warming up it kicks off. My mileage is in the 14 to 15 range but drops to 11 or 12 pulling my little trailer.
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Just my $.02 or $.0156 Canadian
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it depends on the style of fan,a disengaged clutch fan will eat up 2-5 hp but when it locks which should only happen idling in traffic 20-30 hp
electric fans draw 20+ amps so...
all should not be "on" while moving,the air flow from moving should be enough to keep the engine cool if not there is an issue with your cooling system or you need an upgrade
when the clutch fan engages you know it,sounds like a jet engine,quite loud and you will feel the rpm's go down
motor trend engine masters did a fan comparison vid which is now locked behind a subscribe wall and one style,flex fan? took like 40 hp from the engine
$45 vs $300 to gain 5 hp and a little mpg???
the van gets warmed up every week or so and drive every month and of coarse i got to blow the carbon out,damn thing will almost lift the front tires from a start,surprises people with it's get up and go but with 4-10 and no o/d 60 mph is more rpm than you would like,anyone want to buy me a th700r?
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05-31-2020, 07:17 AM
(This post was last modified: 05-31-2020, 07:21 AM by tx2sturgis.)
These big engine fans move a lot of air thru a lot of resistance, and yes, they do take a bunch of HP to do that.
Most semis have a three stage engine brake (or jake brake) but some of them have a fourth stage. Guess what the fourth stage is?
Turning on the engine fan. (some to them do this automatically in stage three if the rpm is not dropping). At high RPM the large engine fan in a class 8 semi is good for 80-100 brake horsepower.
Every little bit helps when that heavy load is pushing you down a long steep grade.
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I am going to buy from them as well.... Ty.
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