Motorhome/ stacker trailer combo Question

Hp and torque is only part of the equation. Look at the factory tow ratings, alot of coaches are amazingly low, like 5k. I'm not saying your is, but I'd look into it. The reason I'd look is cause the ones with the low ratings have weak hitches. I've seen too many people break their hitch off. As long as you are OK going slow uphill, and the hitch is up to the task, rock on.

 
I have the 370hp version of the isl. Moat come with 400 but they can be tuned up to 450 but I don’t think the torque changes much so I haven’t spent the money for the tune. Towing my Jeep on a heavy flatbed up the cajon last time someone jumped in front of me and slowed me way down. I was only able to get back up to 55mph with my foot in it. 

 
Looney Duner said:
Hp and torque is only part of the equation. Look at the factory tow ratings, alot of coaches are amazingly low, like 5k. I'm not saying your is, but I'd look into it. The reason I'd look is cause the ones with the low ratings have weak hitches. I've seen too many people break their hitch off. As long as you are OK going slow uphill, and the hitch is up to the task, rock on.
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Yes AND it is more than just the hitch itself. It is the frame structure, suspension, load rating of rear axle, and brakes. These all factor into the tow rating. 

 
Dockmaster said:
Yes AND it is more than just the hitch itself. It is the frame structure, suspension, load rating of rear axle, and brakes. These all factor into the tow rating. 
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^^^^^This, PLUS the transmission. If it has the Allison 2500, everyone says DO NOT over load it. It WILL fail.

 
Buddy has a stacker and he had the smaller cummins in his pusher.  It would overheat if he tried to maintain speed.  Moved over to a Tag axel 400HP cummins side radiator and it pulls like a dream.  Some of the box trailers can create a dead air spot behind the coach and cause a rear radiator coach to overheat.  If you have the means I would look for a side draft.

 
I appreciate everyone’s responses! Definitely stuff I was thinking of plus more. 

 
Another issue with a 300 HP pusher is it will a weaker transmission. 300HP is entry level and you get the entry level tranny. You should be looking for atleast 400HP with good torque numbers and a 15K hitch.

 
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Another thing to look at is the over hang.  The longer the distance from the rear wheels to the hitch  the more porpoising effect you will get going down the road.  The only thing holding up the back of the coach is the rear wheels, the further forward they are the longer the lever will be and the thing moving that lever is the trailer. so if it's not making the front wheels feel like they are bouncing that flex is going someplace.  Remember most of these are designed to flat tow a small car, not a lot of weight on the hitch of a passenger car.  Bent & broken frames and rear sections of the coach itself cracked in half  have been known to happen

 
IFLY said:
Another issue with a 300 HP pusher is it will a weaker transmission. 300HP is entry level and you get the entry level tranny. You should be looking for atleast 400HP with got torque numbers and a 15K hitch.
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  • 300HP = 5K TOWING and yes it will have an Allison 2500 vs the Allison 3000, big difference.
 
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