sway with a 16" scamp - Fiberglass RV


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Old 02-15-2016, 02:59 PM   #1
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Name: Dawn
Trailer: Scamp
Alabama
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sway with a 16" scamp

We have just got a "new" to us 16 foot scamp with side dinette (weigh in at 2340 loaded for light camping, including the hitch weight (195lb))
Our tow vehicle is a Subaru Forester (rated at 2400lb and 200lb hitch weight), so we are only just inside our specs
We have a class II hitch and a sway controller bar
between 55 and 60 we get a sway, any suggestions?
we love the 16 foot and the Subaru but thinking we may have to go with a 13 foot or a new tow vehicle.
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Old 02-15-2016, 03:06 PM   #2
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Name: Alan
Trailer: 2000 17' Casita Freedom Deluxe...Tow vehicle 2015 Toyota Tacoma Dble Cab V6 Prerunner
California
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Do you have a sway bar and / or weight dist hitch.... Also have you checked tire pressure and is trailer loaded properly
Alot of things can cause this


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Old 02-15-2016, 03:07 PM   #3
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Trailer: 2000 17' Casita Freedom Deluxe...Tow vehicle 2015 Toyota Tacoma Dble Cab V6 Prerunner
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Ops did not read very carefully i now see you did mention a sway bar


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Old 02-15-2016, 03:11 PM   #4
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Name: Frederick / Janis
Trailer: Previously Scamp 13 2002,2016. Scamp 16 on order
Michigan
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Side dinette is always a bit harder to make balance, side to side. Might check your loading and arrange to weigh each wheel to see how close you are.

Also, be sure you have proper "slope" down to the hitch, just slightly tilted toward the tow vehicle, not tilted downward toward the rear bumper.

Longer tow vehicles, like longer pickup trucks seem to be better at towing than short TV's like a Forester, although I don't think I could give a good explanation of the physics.

And, yes. You're much too close to max on everything, imho. Way too close.
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Old 02-15-2016, 03:12 PM   #5
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Name: Glenn ( second 'n' is silent )
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Sounds like you need a new, capable tow vehicle.
Can't add tongue weight, which would probably solve your problem.
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Old 02-15-2016, 03:20 PM   #6
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Name: Dawn
Trailer: Scamp
Alabama
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how do I weigh the loading of each wheel? we went to a CAT scale yesterday to check we were with in the specs for the forester. and have been using bathroom scales to get the hitch weight
one of the tires as a little low (4psi) will air it up and check again
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Old 02-15-2016, 03:28 PM   #7
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Ideally, you would want 12 to 15 per cent of the trailer weight on the tongue.
12 per cent of 2340 is 280 lbs, well over your tongue limit.

Have a read of this useful guide: http://www.sherline.com/lmbook.htm
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Old 02-15-2016, 03:34 PM   #8
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Name: Dawn
Trailer: Scamp
Alabama
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the Subaru manual states 8 to 11%
but in saying that we are not happy with the stability we have, just disappointed that we are with in the specs (just) and can seem to get it to work.
will try and check the weight on each wheel and then park it up till we find a solution
any one with a 13 foot interested in an exchange?
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Old 02-15-2016, 04:00 PM   #9
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Name: Frederick / Janis
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Michigan
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Quote:
Originally Posted by Dawn HSV View Post
the Subaru manual states 8 to 11%
but in saying that we are not happy with the stability we have, just disappointed that we are with in the specs (just) and can seem to get it to work.
will try and check the weight on each wheel and then park it up till we find a solution
any one with a 13 foot interested in an exchange?

You'll have to decide which way to go. Either sell the 16, (an easy move), and buy a 13, hard to come by, and you'd be set with the Forester.

Or, keep the 16 and upgrade the tug.

Heartily agree that you need 250 lbs on the tongue to remove the wig wag.
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Old 02-15-2016, 04:38 PM   #10
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new tire ?
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Old 02-15-2016, 04:58 PM   #11
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I'm sure you calculated the tongue weight percentage, but you are just inside the Subaru specified minimum 8% tongue weight.

I agree with the suggestion to either downsize the trailer or get a bigger tug. Tow limits are just that, limits. Right now you are pushing the limit both in trailer weight and in minimum tongue weight. If you look at the rig crooked, you'll likely throw something out of wack.

By the way, you will notice that I am towing a Little Joe with a 2014 Outback. Tow rating with trailer brakes is 2700 lb with a 200 lb tongue limit. Loaded, ready to go the Joe is 1760 lb with a 180 tongue weight. I believe that if I am going to take the rig on the highway, I owe it to others out there to have a bit of a safety margin, say 20%.


Good luck with your search, whatever your decision.
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Old 02-15-2016, 05:09 PM   #12
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Trailer: 2008 Scamp 13 S1
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sway with a 16' scamp

Some categories of trailers, such as boat trailers, are inherently more stable with a lower tongue weight percentage. Conventional wisdom is 8-10% TW for a boat, 10-15% TW for a camping trailer. Unfortunately your Scamp is not a boat.

A sway bar is not meant to tame an unstable set-up, but to add an extra margin of safety in an emergency.

I don't see an easy solution here. Good news is that both the Subaru and the Scamp are popular choices, so swapping out one or the other should be less painful.
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Old 02-15-2016, 05:27 PM   #13
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Quote:
Originally Posted by Dawn HSV View Post
We have just got a "new" to us 16 foot scamp with side dinette (weigh in at 2340 loaded for light camping, including the hitch weight (195lb))

Our tow vehicle is a Subaru Forester (rated at 2400lb and 200lb hitch weight), so we are only just inside our specs

We have a class II hitch and a sway controller bar

between 55 and 60 we get a sway, any suggestions?

we love the 16 foot and the Subaru but thinking we may have to go with a 13 foot or a new tow vehicle.

If you love the 16, you should probably get a new tow vehicle. Actually, you are "pushing" things. Many vehicle manufacturers will tell you for longevity, you should not exceed 80% of the vehicles rated towing capacity. At 2340 lbs, you are making the Subaru work to its capacity all the time you are towing.


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Old 02-15-2016, 05:42 PM   #14
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Name: Dawn
Trailer: Scamp
Alabama
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We have only had the 16 ft a week, but do like the space (camped in the backyard a couple of nights, got it here with my father-in-laws truck). We have been tent campers and as lives got busy we weren't going out as much, figured with a Scamp we could have it set up ready to go for the weekends and in Alabama we have pretty much year round camping possibilities. So I guess it is backyard camping till we replace the Subaru.
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