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Open Roads Forum  >  Class A Motorhomes

 > 275 cummins better than 310 hp v10 ?

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wbrowning

Southeast Texas

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Posted: 08/01/09 10:28am Link  |  Print  |  Notify Moderator

is the 275 cummins a better engine than a 310 gas engine are there any advantages economy wise tell me some good and bad points I want the first purchase to last awhile going to pull 24 cargo trailer with bikes inside. Looking for best fuel economy and ride am I better off with older diesel than newer gas.

* This post was edited 08/01/09 10:35am by wbrowning *

50pascals

rochester, ny

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Posted: 08/01/09 10:46am Link  |  Print  |  Notify Moderator

I'd take the 275 cummins over the V-10 anyday. especially for towing. You're going to get a ton of passionate answers both ways. Drive them both, you'll see the difference.

CurtisG

Vinton, Louisiana

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Posted: 08/01/09 12:30pm Link  |  Print  |  Notify Moderator

I've had both the Ford V-10 and the GM 8.1 with great success, but if I had to do it over again I would choose the diesel over the gasser, especially if pulling a heavy load. You also generally get a much better ride with the diesel.

Curt


CurtisG
2003 34' Allegro Bay
WH(W22)/GM8.1/Allison

Triker33

Homestead, FL

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Posted: 08/01/09 12:45pm Link  |  Print  |  Notify Moderator

275 will have more torque less horse power.
275 will give you better MPG.
275 on most MH's have a 5,000 lb tow & 500 lb. tong limit.
That may be close for a 24' loaded trailer.
Look out for a "53" block and pass on it.

Problems with a 53 Block


Larry Full Time Since 99
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The Texan

Wellton, AZ

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Posted: 08/01/09 01:08pm Link  |  Print  |  Notify Moderator

Having owned 2 Ford V-10s in RVs and 2 ISB engines, a 260 and a 300 one being an RV, I will take a ISB over a gas engine anytime. Mileage wise, you will get at least 35% better fuel mileage with the ISB and the torque will haul a trailer much better. Also, Cummins will re-program a later model 275 engine to 300HP, if you wish.


Bob & Betsy(FishNFanatic) - USN Aviation Ret'd '78 & LEO Ret'd '03 & "Oath Keeper Forever"
'05 HR Endeavor 40PRQ, 400 Cummins-Pulling our '11 Silverado LT, Ex Cab 6.2L NHT 4x4, w/ the Rzr or ACE or a Quad riding in back.
Where the wheels are stopped today


Robert H

Crestline,CA,US

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Posted: 08/01/09 01:17pm Link  |  Print  |  Notify Moderator

Diesels are made to pull a heavy load at low RPM and added benefits for most diesel powered coaches are air ride, air brakes, exhaust brake, & a turbo for pulling in the mountains. . .

Ivylog

Blairsville, GA and WPB, FL.

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Posted: 08/02/09 10:10am Link  |  Print  |  Notify Moderator

You could post a question in the towing forum about towing with a 5.9 Cumin's 275 or a V10 and get a bunch more answers. For what you are wanting to do you will be much happier with a used diesel DP. While the 5.9 is a great, little engine I am not a fan of it in a larger MH because of it's lower torque numbers compared to something like a 8.3. Size does matter, especially when wanting to tow a large trailer. As Triker 33 warned, most Mh with a 5.9 engine will probably have a 5K hitch on it as that is all the manufacture want you to add to the work the 5.9 was doing.
I've said many times I'd take a used diesel over a new gasser any day so I'm with you on that, but not one with the 5.9. I'm partial to Monaco products with the RR8R suspension for the good handling and they will have the larger engines with a 10K hitch.


This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.

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wbrowning

Southeast Texas

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Posted: 08/01/09 10:11pm Link  |  Print  |  Notify Moderator

looked at 99 BOUNDER 36S single slide 275 cummins freightliner chassis 41000 miles 7.5 dsl generator clean coach but a little pricey I think at 49K

hershey

Albuquerque,(fulltime) NM, USA

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Posted: 08/01/09 01:39pm Link  |  Print  |  Notify Moderator

Had an 8.1 with a 32' MH and loved it - performed very well, no complaints.
Now we have a 260 hp Cummin's on a 36' MH and have to say, I'd never go back. Quieter of course but noticeably better fuel economy and the ride has no comparison. Climbing hills are probably about the same.


hershey - albuquerque, nm
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50pascals

rochester, ny

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Posted: 08/01/09 02:19pm Link  |  Print  |  Notify Moderator

Triker33 wrote:

275 will have more torque less horse power.
275 will give you better MPG.
275 on most MH's have a 5,000 lb tow & 500 lb. tong limit.
That may be close for a 24' loaded trailer.
Look out for a "53" block and pass on it.

Problems with a 53 Block


Truck shop tells me this is basically a problem in the dodge ram's because they mount the engine with mounts on the side of the block.

Most industrial and medium duty versions mount the block on the front under the timing cover and on the sides of the bell housing.

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