Using Uhaul trailer for trackdays. yay or nay?

Good but one thing: The F accel is on the whole car not at the tongue point. Your spring will absord most of the energy

is ki maaaki kirkirri.. koi samjhao ye hauley ku.. ghaans khara kya mia
 
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Until the spring bottoms out
 
Math fights on the internts are funny.

cool - drive down a flat road with your hand between the hitch and the tounge. That pain you will experience is the tounge weight from your trailer. When you hit a dip or bump in the road, your bones breaking in your hand are the result of the force on the tounge of the trailer changing.

As an aside, I'd imagine the tounge ratings for a hitch are static weights, and have the additional dynamic forces factored in.

Ofcourse its static rating. But logic does not exist here. They're busy showing their physics knowledge.... Good laugh
 
Good but one thing: The F accel is on the whole car not at the tongue point. Your spring will absord most of the energy

That is incorrect.

To calculate and external force you must consider the trailer or hitch carrier as a closed system and separate from the car.

The suspension in the car and trailer will help to reduce the acceleration as seen at the tongue/trailer interface but they won't eliminate it entirely (I think this is where you are confused).


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He's not towing a trailer, it's a hitch carrier he's contemplating so it's close to correct (just add the weight of the carrier).

I'm just waiting for him to google "max tongue weight toyota camry" to realize he's been wrong all along.

Hence i explained i wont go with the camry and its the spring that limit the rating. The frame can take more than 600lbs if the cargo limit is 1000lbs.
 
That is incorrect.

To calculate and external force you must consider the trailer or hitch carrier as a closed system and separate from the car.

The suspension in the car and trailer will help to reduce the acceleration as seen at the tongue/trailer interface but they won't eliminate it entirely (I think this is where you are confused).


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As i said i already acknowledge the force. But the tonque weight rating is measured at static. Note what i said about his analogy. Doesnt apply
 
As i said i already acknowledge the force. But the tonque weight rating is measured at static. Note what i said about his analogy. Doesnt apply

I quoted your post (see below) which is incorrect. And I have shown why it is incorrect. I never said that the tongue weight changes, but your statement that bumps have no effect on the hitch is categorically incorrect.

You dont seem to understand here. Going over the bump has no effect on the hitch as its already class 3. The force will be on your spring.

So you should ask if your spring can handle the load




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cool - drive down a flat road with your hand between the hitch and the tounge. That pain you will experience is the tounge weight from your trailer. When you hit a dip or bump in the road, your bones breaking in your hand are the result of the force on the tounge of the trailer changing.

Ohhhhh I like that
 
Where did i say about going over the rating.

The weight of the bike is 450lbs so thats your tongue weight. Does that exceed class 3 hitch?

This didn't make sense before to me. I assumed this was about trailer tongue weight. If this is a hitch mount bike carrier, the bike weight is over the tongue and technically is the tongue weight.

Reading comprehension is important. I failed.
 
The Hitch is attached to the car frame

This thread is giving me a headeach.
You dont seem to understand here. Going over the bump has no effect on the hitch as its already class 3. The force will be on your spring.

So you should ask if your spring can handle the load
 
This didn't make sense before to me. I assumed this was about trailer tongue weight. If this is a hitch mount bike carrier, the bike weight is over the tongue and technically is the tongue weight.

Reading comprehension is important. I failed.

Yes and he assume the tongue weight will be different going over the bump. While the hitch tongue rating is static. His logic makes the rating moot.
 
The Hitch is attached to the car frame

This thread is giving me a headeach.

Yes so why focus on the hitch tongue. I do believe the car frame load rating means its not an issue

Edit: i dont know the load rating of the suspension but i assume it need to be changed to accommodate the load ( weight distribution)
 
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I quoted your post (see below) which is incorrect. And I have shown why it is incorrect. I never said that the tongue weight changes, but your statement that bumps have no effect on the hitch is categorically incorrect.






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I mean the rating is static. Its class 3 rating. The force will be on the whole object, assuming the hitch is part of the car frame
 
I mean the rating is static. Its class 3 rating. The force will be on the whole object, assuming the hitch is part of the car frame


its not part of the frame.. its externally secured to it.... you better hope those bolts are rated for your INTENDED application.

i don't think a camry can even accept a class 3 hitch.. do correct me if i am wrong
 
The interface where the hitch mounts to the vehicle is probably one of the limiting factors to tongue weight (along with suspension maybe?!).

No matter how strong your fasteners are, the unibody may not handle the vertical weight.

I was also pondering a hitch mount carrier in the past. I was concerned with being towards the limit of my tongue weight capacity. The bike carriers appear to stick out a little further than where the ball would be. That could cause a leverage ratio issue which could put you over your tongue weight capacity. If tongue weight is measured at the hitch ball location, and the vertical load of the bike is further out than that, then there would an additional leverage arm moment to calculate. Because it was too close for comfort, I bailed on that idea.
 
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