Engine Idle Temperature Management Strategy?
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Cruiser
Joined: Jun 2011
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From: West... It's better out here!
Engine Idle Temperature Management Strategy?
Hey all,
So prior to the actual release, there was a lot of speculation of the 2012's coming out with the 103 engines. One point of concern seemed to be the heat in the rear cylinder of the engine.
HD seems to have addressed this issue with Engine Idle Temperature Management Strategy...
What are your thoughts on this?
Junior
So prior to the actual release, there was a lot of speculation of the 2012's coming out with the 103 engines. One point of concern seemed to be the heat in the rear cylinder of the engine.
HD seems to have addressed this issue with Engine Idle Temperature Management Strategy...
What are your thoughts on this?
Junior
Cruiser
Joined: Aug 2008
Posts: 160
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I haven't looked at the what Harley is doing about the 103 but they have had a programed function that turns the fuel off on the rear cylinder of the bagger models if they idle over a certain amount of time. You can have this programed into at least the 2009 Dyna models, for a price.
Outstanding HDF Member
Joined: May 2008
Posts: 2,923
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From: Asscrackistan
I know it can be done on the 08's. I had it done to see it would would help correct issues I was having with drive ability. It was in fact a better download which eliminated the low surge issue and netted better throttle response. When the head temp sensor reaches a certain temp, it shuts down the rear cylinder. The first time I experienced activation of rear cylinder shut down at a stop light in the heat of day, the engine acts like you have a bad plug, more or less a rough idle effect. What I didn't like was, at launch, it stumbles then kicks back in. Sorry, I didn't like that hesitation at all, especially if your in a emergency situation and you need gas now! That stumble could be enough to get you hit!. I had the dealer flash the stock program back in. But that's all irrelevant now..
Tourer
Joined: May 2011
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From: Sydney, Australia
I just wanna know if there are any long term effects. For example: in V8's which "turn off" 2 cylinders, 2 of them don't stop working, it changes the firing cycle so all 8 still fire, just in a different order, so the wear on the engine is even. What's gonna happen to your bike in 5, 10, 30 years, if the wear isn't even. I know it's only while you idle, but you never know the effects until they happen
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Outstanding HDF Member
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From: Asscrackistan
I just wanna know if there are any long term effects. For example: in V8's which "turn off" 2 cylinders, 2 of them don't stop working, it changes the firing cycle so all 8 still fire, just in a different order, so the wear on the engine is even. What's gonna happen to your bike in 5, 10, 30 years, if the wear isn't even. I know it's only while you idle, but you never know the effects until they happen
On the touring bikes, you can manually activate at will by rolling the throttle forward.
