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Old 10-13-2014, 06:12 PM   #1
Join Date: Oct 2014
Posts: 64
Engine Query

New poster, but I've been lurking for a while. Looking to get out of tents & such, we're shopping for an older Class A. I found a 1995 National Dolphin 34' pusher that looks really good. The only doubt I have is it's powered with a turbo/after-cooled Cummins 5.9 w/200hp. It's got 101,000mi on it so I guess it gets around OK, but will it be a slug? It seems low-powered. Any input is appreciated. Thanks!

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Old 10-13-2014, 06:27 PM   #2
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It won't be a rocket but Class A coaches are not the best choice if you need to get somewhere fast. I had that motor in a 98' Newmar and it would go all day long (at 65 mph). The Newmar had a 318 rear end which didn't help much for speed running 2600 rpm but it sure was easy on fuel. Most drivers seldom need to run more than 60 to 65 mph anyway

2015, HR Ambassador 38DBT / 2006 Jeep TJ Towd
340 Cummins / Freightliner Chassis
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Old 10-13-2014, 06:39 PM   #3
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Glad you're aboard. IMO Depends on what you are going to do with it. Appears to have enough power to get the coach around as it is. If you're going to tow and load it heavily it may not be the right one for you. Best of luck on your search and decision. Enjoy your adventures and be safe.
Have a wonderful day!
Ken (RVM 87)
FT DP Wanna B The journey is the destination!
Retired & perfecting procrastination!
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Old 10-13-2014, 10:25 PM   #4
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Posts: 454
If you can, go pull a few hills with it before purchasing. If you are satisfied that's all that matters. If the price is right it and you like the inside, that's most of the battle.
Dick & Theresa
2007 HR Endeavor 36 PDQ
Lots of power to pull the toys I don't have time to use!!
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Old 10-14-2014, 06:28 AM   #5
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Hi Filmshooter,
Welcome to iRV2. 100 pounds per horse power is something for you to consider. 200X100 = 20K pounds. If the weight of the coach and towed car is more than 20K, then patience will be needed. I speak from experience. My coach is 330 Cummins and I am moving 37K+ down the road. On flat or moderate inclines, the Cummins does fine (60 MPH). In the mountains (Smoky or Rocky) I'm usually in the truck lane admiring the view. It all depends on if momentum can be kept.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
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