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Old 12-09-2010, 12:37 PM   #29
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How often will you pull the trailer? Every trip? If so, you will loose mpg and performance when going up the smallest of hills. My brother has the 330hp engine in his 40' mh pulling a lightweight Jeep. When we follow each other I always get far ahead of him setting our cruise on 62 mph. At the end of the day we both get nearly the same mpg. We pull a 3700lb pick up behind our 500hp engine.

GO BIGGER, you won't regret it.

Dave
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Old 12-09-2010, 12:53 PM   #30
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One other suggestion if you have not already made a decision. Look at something a little older that has the extra hp/torque you will NEED. We could not afford the newer coaches and are really happy with the quality and performance of our older coach.

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Old 12-09-2010, 01:57 PM   #31
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Just remember to stay away from Cummins ISL engines manufactured between October, 2005 and April 2006 because of the wristpin connecting rod problem. See http://nhthqnwws111.odi.nhtsa.dot.go...7E033-6307.pdf

Even if it hasn't kicked out a rod by now the "fix" was only to detune the motor for less power out which you don't need.
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Old 12-09-2010, 03:24 PM   #32
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No one has mentioned GVWR, or the Gross Vehicle Wieght rating. If your GVWR is 40k lbs, just as example, and your rig, loaded, comes in at 37k lbs, the tow rating is moot. You've only got 3k left before the GVWR is exceeded.

For any rig you consider, you'll need a good estimate as to how much the rig will wiegh, on its own, when loaded for travel and then calculate whether or not you have the capacity left over to pull your trailer.

Good hunting...
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Old 12-10-2010, 07:08 AM   #33
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Quote:
Originally Posted by JMonroe View Post
No one has mentioned GVWR, or the Gross Vehicle Wieght rating. If your GVWR is 40k lbs, just as example, and your rig, loaded, comes in at 37k lbs, the tow rating is moot. You've only got 3k left before the GVWR is exceeded.
NO NO NO!
The towing weight comes from the Difference between the chassis GVWR and the GCWR.
That should be posted somewhere in the MH.
The difference may be 5K, 10K or a different number.

In your example if the GVWR is 40K the MH can be loaded too 40K as long as the front or rear GAWR is not overloaded and still have 5K, 10K, etc left to tow.
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Old 12-10-2010, 09:09 AM   #34
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Quote:
Originally Posted by Mike Canter View Post
Just remember to stay away from Cummins ISL engines manufactured between October, 2005 and April 2006 because of the wristpin connecting rod problem. See http://nhthqnwws111.odi.nhtsa.dot.go...7E033-6307.pdf

Even if it hasn't kicked out a rod by now the "fix" was only to detune the motor for less power out which you don't need.
Thanks Mike. Thats some great information. I'll store that in my "Things to know when buying a used Motorhome" file.
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