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Old 07-13-2020, 10:28 PM   #21
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Originally Posted by Mike134 View Post
Thank you,


I emailed Equalizer this morning asking about disabling the trucks sway control. Will update when I get their written response.
Mike 134 they also told me they don't have a lot of data on it but they still recommend you to turn it off .
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Old 07-13-2020, 11:50 PM   #22
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So...what makes you think having the Ford anti sway on wouldn't still improve the sway avoidance?

Propride hitch won't allow trailer sway, nothing to "improve". Ford anti-sway braking had a tailgater within 5 feet of my back bumper...
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Old 07-14-2020, 12:08 AM   #23
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Propride hitch won't allow trailer sway, nothing to "improve". Ford anti-sway braking had a tailgater within 5 feet of my back bumper...
LOL. I was expecting an answer to the affect that The manufacturer told you to turn it off with a reason. Wonder why the Propride doesn't say anything in their manual about turning off antisway.


Curious how Ford anti-sway had someone on your bumper. You talked to the guy since he was so close?
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Old 07-14-2020, 04:27 AM   #24
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When using any WDH that stiffens the articulation point the possibility of the TV sway control and the hitch sway control working against each other is possible. It won’t necessarily happen in every instance but it’s possible. It can cause unnecessary rear brake pulsing, lower fuel economy, excessive rear brake wear. The Ford F-150 is known to have a very aggressive ESC with more sensors than most vehicles. How do you think they can get such a high rated tongue and trailer weight rating on such a light weight truck? They do it with ESC.
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Old 07-14-2020, 10:37 AM   #25
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When using any WDH that stiffens the articulation point the possibility of the TV sway control and the hitch sway control working against each other is possible. It won’t necessarily happen in every instance but it’s possible. It can cause unnecessary rear brake pulsing, lower fuel economy, excessive rear brake wear. The Ford F-150 is known to have a very aggressive ESC with more sensors than most vehicles. How do you think they can get such a high rated tongue and trailer weight rating on such a light weight truck? They do it with ESC.
They do it with weight savings due to using an aluminum body by saving weight. ESC does not affect the payload rating. Its based on GVW and axle ratings.


The WDH anti sway I have(E4) is basically resistive only, there is no spring pulling things back. This means you won't have a situation where you get something that can go into oscillation as some people seem to think.
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Old 07-14-2020, 10:48 AM   #26
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I've been turning off because equalizer recommends us to, but if they don't have any testing to back this recommendation I think I will start leaving mine on from now on. I have never been in any bad sway situation that would have required assistance.
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Old 07-14-2020, 10:53 AM   #27
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I've been turning off because equalizer recommends us to
I was trying to find this on their website and I couldn't find it.
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Old 07-14-2020, 11:02 AM   #28
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I was trying to find this on their website and I couldn't find it.

Your right, I apologize, I don't recall seeing anything from equalizer on this matter either. It was my prior wdh that recommended turning off,
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Old 07-14-2020, 11:38 AM   #29
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They do it with weight savings due to using an aluminum body by saving weight. ESC does not affect the payload rating. Its based on GVW and axle ratings.


The WDH anti sway I have(E4) is basically resistive only, there is no spring pulling things back. This means you won't have a situation where you get something that can go into oscillation as some people seem to think.
With weight savings they need ESC more than ever. If you would calculate sway damping ratio using only passive properties (mass, dimensions, tire properties) there simply is not enough damping there to be able to meet the 65mph speed requirement. All the manufacturers do it on both class 2a and 2b trucks. If they were required to turn off ESC while performing SAE j2807 the tow weight ratings would drop significantly across the board.
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Old 07-14-2020, 11:42 AM   #30
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With weight savings they need ESC more than ever. If you would calculate sway damping ratio using only passive properties (mass, dimensions, tire properties) there simply is not enough damping there to be able to meet the 65mph speed requirement. All the manufacturers do it on both class 2a and 2b trucks. If they were required to turn off ESC while performing SAE j2807 the tow weight ratings would drop significantly across the board.

Sounds like you'd be a good source for the specs used in SAE J2807. Could you please post a link or PDF to the ones testing the truck handling a sway event?


Thanks
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Old 07-14-2020, 11:54 AM   #31
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The vehicle manufacturers do the testing and simulation themselves and submit the data to the SAE. They don’t release the data out for the public to see. The SAE j2807 document with testing procedures is available on the web for free.
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Old 07-14-2020, 12:06 PM   #32
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The vehicle manufacturers do the testing and simulation themselves and submit the data to the SAE. They don’t release the data out for the public to see. The SAE j2807 document with testing procedures is available on the web for free.

https://www.sae.org/standards/content/j2807_201602/


They want to charge $83.00



I don't think it's on the web for free
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Old 07-14-2020, 12:10 PM   #33
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This is a 2016 final release. There may be a new recent revision out but don’t think any major changes were made.

https://fifthwheelst.com/documents/t...ds-2016-02.pdf
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Old 07-14-2020, 12:24 PM   #34
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LOL... likewise

So if I turn off my ESC my tow rating goes down? Yeah right.
Quote:
Originally Posted by Mike134 View Post
Sounds like you'd be a good source for the specs used in SAE J2807. Could you please post a link or PDF to the ones testing the truck handling a sway event?


Thanks
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Old 07-14-2020, 02:00 PM   #35
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If turning off the ESC lowers your tow rating, you'd think they would document that. My F150 is rated both with and without a WDH, as usual. Nothing about ESC effecting tow rating/capacity.
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Old 07-14-2020, 03:00 PM   #36
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Mike 134 they also told me they don't have a lot of data on it but they still recommend you to turn it off .

Received an answer to my email from Equalizer




"Hey Michael, with all of these newer trucks having the built in sway control we've started doing some testing with them while using our hitches. From the small groups that have been tested the trucks sway control has seemed to be working against the hitch. So disabling it is our recommendation. When set up properly the hitch shouldn't need any help with controlling the sway.


Bryson Elliott
Customer Support Representative"
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Old 07-14-2020, 03:05 PM   #37
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Interesting. So I guess I will continue to turn mine off
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Old 07-14-2020, 04:29 PM   #38
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LOL... likewise

So if I turn off my ESC my tow rating goes down? Yeah right.
Check the warning in the owners manual about turning off.
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Old 07-14-2020, 04:33 PM   #39
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From a f250 owners manual.
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Old 07-14-2020, 04:39 PM   #40
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If turning off the ESC lowers your tow rating, you'd think they would document that. My F150 is rated both with and without a WDH, as usual. Nothing about ESC effecting tow rating/capacity.
If you have 1320lbs of TW and 13200lba of trailer attached to a 5300lb f150? Yes it makes difference.
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