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-   -   Incredibly stupid question... (http://www.jeepgarage.org/f73/incredibly-stupid-question-46707.html)

spike98 08-28-2012 05:10 PM

Incredibly stupid question...
 
I have searched high and low, read through many threads, and google the snot out of what i am looking for.

I have a '12 Overland V6 and i just bought a trailer. Its an older one but i got a great deal on it so im not complaining. Anyways its GVW is 3700lbs (2800lbs dry). It came in at about 3000lbs when i picked it up.

It didn't feel like it pulled as well as it should. It would pull at 100km/hr at ~3000rpm while in D and did not want to go up a gear. I believe that is 3rd correct?

The trailer has electric brakes but i was only going 20km and i didn't have a controller yet so they weren't attached. It felt VERY stable and braked very well yet on a relativity flat road, the V6 seemed to be pretty lacking. It was pulled maybe an inch too high until aero mode kicked in and the load was fairly balanced.

Do the electric brakes default to on when no power is applied? They didn't get hot or smoke while pulling at all. Maybe my expectations for the V6 are too high or perhaps i just dont know how to pull a effin trailer.

Some insight would be nice and please dont flame me to hard for not knowing what the hell i am doing haha.

ColdCase 08-28-2012 07:26 PM

Re: Incredibly stupid question...
 
There should be retail trailer outlets or service centers in your area that could check out/inspect the trailer for you. Could be brakes dragging, low tire pressure. Did you say it weighed 3000lbs empty? How aerodynamic is it?

spike98 08-28-2012 08:19 PM

Re: Incredibly stupid question...
 
2800lbs dry yes. There was some jacks and a add on storage box with a spare in the back so i guess it was about 3000lbs pulling it home.

There is most definitely a trailer service place around and the intention is to take it in this weekend but in the interim i would love to know how things are suppose to work...ie how certain configurations would make the trailer feel.

josh3008 08-28-2012 10:24 PM

Re: Incredibly stupid question...
 
On trailer brake setups the brakes are off until a voltage is applied to them, if they weren't plugged in then it should be fine. Check things like wheel bearings. Grab the jack out and check to make sure the wheels rotate freely and do not wobble too much. there should be a very slight wobble when you rock the tyre up and down.

2012 Summit 08-29-2012 06:09 AM

Re: Incredibly stupid question...
 
Sorry I don't have any answers for you, but let me fire back with a dumb question: Is the payload for the trailer only 900 pounds? It just seems like a trailer that weighs 2800 pounds should be able to carry more than 900 pounds. What type of trailer is it?

spike98 08-29-2012 08:49 AM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by 2012 Summit (Post 676500)
Sorry I don't have any answers for you, but let me fire back with a dumb question: Is the payload for the trailer only 900 pounds? It just seems like a trailer that weighs 2800 pounds should be able to carry more than 900 pounds. What type of trailer is it?

This is what i estimate it to be when fully loaded:

2 x 40lb propane = 80lbs
30 gal of water = 250lbs
Suitcases/toiletries = 80lbs
Pots pans and other gear = 150lbs
Food, drinks and of course lots of beer = 150lbs
Storage box, spare, bike, and small tool box = 200lbs

Added weight 910lbs
+ dry weight of trailer 2800lbs

Comes in at

3710lbs. This should be an ok tow for the V6. Thats only 75% of the max towing capacity. Even still, i towed it when it was dry which is just over 50% of max.

Thats good to know about the brakes, i figured as such. I will be jacking it up tonight to check for wheel movement and play.

hammer1234 08-29-2012 09:08 AM

Re: Incredibly stupid question...
 
Is it a popup camper? If not you need to figure in the air resistance at highway speed...the owner's manual actually specifies a frontal area limit which is somewhat smaller for the V6.

We do fine with our V6 and a 2000 lb camper but I wouldn't win any speed races with it.

spike98 08-29-2012 10:46 AM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by hammer1234 (Post 676568)
Is it a popup camper? If not you need to figure in the air resistance at highway speed...the owner's manual actually specifies a frontal area limit which is somewhat smaller for the V6.

We do fine with our V6 and a 2000 lb camper but I wouldn't win any speed races with it.

Not a popup. Wind resistance does make a lot of sense. Its not massive by any means but that could be contributing to the problem. The manual gives 40sqft of surface area. That doesn't seem like a whole lot. Ill have to measure when i get home.

Sliter'12Overland 08-29-2012 02:13 PM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by spike98 (Post 676639)
Not a popup. Wind resistance does make a lot of sense. Its not massive by any means but that could be contributing to the problem. The manual gives 40sqft of surface area. That doesn't seem like a whole lot. Ill have to measure when i get home.

Have you tried tow haul mode and using the ERS in 5th? The V6 should be fine once you're rolling but I would believe that it seems like it is screaming to get going. Shoulda got a HEMI.:D

2012 Summit 08-29-2012 02:45 PM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by Sliter'12Overland (Post 676726)
Have you tried tow haul mode and using the ERS in 5th? The V6 should be fine once you're rolling but I would believe that it seems like it is screaming to get going. Shoulda got a HEMI.:D

No tow haul mode available on the V6.

enjens 08-29-2012 02:53 PM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by Sliter'12Overland (Post 676726)
Have you tried tow haul mode and using the ERS in 5th? The V6 should be fine once you're rolling but I would believe that it seems like it is screaming to get going. Shoulda got a HEMI.:D

We pull a 2 tonne trailer with our pentastar v6 very successfully. I usually leave it in 4th, it runs at about 2200 revs at about 100 km, will drop a gear and rev feely on hills but does not bother me.
Don't expect it to lug at low revs like a diesel would.

spike98 08-29-2012 03:48 PM

Re: Incredibly stupid question...
 
Quote:

Originally Posted by enjens (Post 676750)
We pull a 2 tonne trailer with our pentastar v6 very successfully. I usually leave it in 4th, it runs at about 2200 revs at about 100 km, will drop a gear and rev feely on hills but does not bother me.
Don't expect it to lug at low revs like a diesel would.

I think my biggest problem was that i left it in D. After reading some comments, manual mode would have been more suited to pulling it. 2200pm @ 100 in 4th would feel perfect and give me better than 10mpg that i was getting. Despite having it in 3rd, pulling it at 3k rpm and getting bad mileage it didn't feel out of control or unstable.

How does the pulling configuration as a whole effect towing. Would a weight distributing hitch, angle of the tow vehicle, tongue weight, or load balance help or hurt the ability to pull? I know the above effects stability for sure.


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