360 Hp Cummins

dubdub07 wrote:

et2 wrote:

eheading wrote:
What brand of RV are you looking at? It is extremely rare for a 40' motorhome of any price range to have the IXB-6.7 engine in it. A lot of them have the 360hp ISC engine in them that has 950 ft-lb of torque. Unless you are bothered by the slower hill climbing ability of this combination, in my opinion it would be more than adequate to meet your needs.

Ed Headington

I'm not so sure you're accurate. I think you meant ISB 6.7. Many motorhomes are (were) equipped with the ISB 6.7. 0ur 2013 Fleetwood Expedition has it in it - 360 hspwr & 800 lb-ft torque. It's almost 42' long. I believe the Discovery (2013) got the ISC 6.9 - 380 hspwr - 1200 lb-ft torque.

We've had no issues pulling a 4600 lb Jeep Liberty. It's rated to pull 10,000 lbs, I believe it will.

The Discovery is an ISC 8.3 in 2013. Biggest difference between the two (ISB vs ISC) is going to be MPGs. I get about 7.8 - 8.3 where the ISB will probably see 8-9 or higher. I have driven both and don't see much difference. There is a lot of difference in the 6.7s that are 340HP with the Allison 2500, they are not enough for 30K+ lbs, IMO.

your saying a 380HP ISC 1050 lb torque is not any different than a ISB 360HP with 800 torque Very hard to beleive

et2 wrote:

eheading wrote:
What brand of RV are you looking at? It is extremely rare for a 40' motorhome of any price range to have the IXB-6.7 engine in it. A lot of them have the 360hp ISC engine in them that has 950 ft-lb of torque. Unless you are bothered by the slower hill climbing ability of this combination, in my opinion it would be more than adequate to meet your needs.

Ed Headington

I'm not so sure you're accurate. I think you meant ISB 6.7. Many motorhomes are (were) equipped with the ISB 6.7. 0ur 2013 Fleetwood Expedition has it in it - 360 hspwr & 800 lb-ft torque. It's almost 42' long. I believe the Discovery (2013) got the ISC 6.9 - 380 hspwr - 1200 lb-ft torque.

We've had no issues pulling a 4600 lb Jeep Liberty. It's rated to pull 10,000 lbs, I believe it will.

The Discovery is an ISC 8.3 in 2013. Biggest difference between the two (ISB vs ISC) is going to be MPGs. I get about 7.8 - 8.3 where the ISB will probably see 8-9 or higher. I have driven both and don't see much difference. There is a lot of difference in the 6.7s that are 340HP with the Allison 2500, they are not enough for 30K+ lbs, IMO.

et2 wrote:

eheading wrote:
What brand of RV are you looking at? It is extremely rare for a 40' motorhome of any price range to have the IXB-6.7 engine in it. A lot of them have the 360hp ISC engine in them that has 950 ft-lb of torque. Unless you are bothered by the slower hill climbing ability of this combination, in my opinion it would be more than adequate to meet your needs.

Ed Headington

I'm not so sure you're accurate. I think you meant ISB 6.7. Many motorhomes are (were) equipped with the ISB 6.7. 0ur 2013 Fleetwood Expedition has it in it - 360 hspwr & 800 lb-ft torque. It's almost 42' long. I believe the Discovery (2013) got the ISC 6.9 - 380 hspwr - 1200 lb-ft torque.

We've had no issues pulling a 4600 lb Jeep Liberty. It's rated to pull 10,000 lbs, I believe it will.

something rated for 10K does not always correlate to what motor the unit has. I have a 425ISC in my 40ft unit with a 50HP module add on
I pull a 3600lb toad and I barely have adaquite power on mountain passes.I would not ever want to own the same size unit such as your unit with a ISB 360HP.

JimM68 wrote:
Ed, I checked the specs, Winnie uses the ISB in the 34 and 36' Journeys, moving up to the ISC in the 40 footer and ISL in the 42'.

IMHO an ISB is not the first choice in a big coach.

Someone should have told Freightliner & Fleetwood. Dang those Cummins guys, they don't care who they sell to. They must do a lot of engine rebuilds.

I guess the question is first choice for who, and for what? Not everyone is in a drag race up the hill.

eheading wrote:
What brand of RV are you looking at? It is extremely rare for a 40' motorhome of any price range to have the IXB-6.7 engine in it. A lot of them have the 360hp ISC engine in them that has 950 ft-lb of torque. Unless you are bothered by the slower hill climbing ability of this combination, in my opinion it would be more than adequate to meet your needs.

Ed Headington

I'm not so sure you're accurate. I think you meant ISB 6.7. Many motorhomes are (were) equipped with the ISB 6.7. 0ur 2013 Fleetwood Expedition has it in it - 360 hspwr & 800 lb-ft torque. It's almost 42' long. I believe the Discovery (2013) got the ISC 6.9 - 380 hspwr - 1200 lb-ft torque.

We've had no issues pulling a 4600 lb Jeep Liberty. It's rated to pull 10,000 lbs, I believe it will.

I lived in Clovis for 3.4 years and went to Amarillo at least 50 times and never once saw a hill big enough to worry about. For the passes in my state, being 35-39K combined with a 6.7 is a tall order, but it will pull it. The 3000MH Allison will do just fine but you will be 35mph up most passes in the Colorado, if not a bit slower. Mileage should be decent, 8-9mpg.

Johnny G1 wrote:
I don't know, my old 12 valve tows and get 12.5 mpg towing all over North America and its 210 hp so your 360 hp should do a good enough job.

I think u mean 12.5 Canadian mileage not US? This unit hes talking about is a way heavier than your unit plus he wants to drag along 6K so around 39000 lbs gross.Your 210HP is way under powered in 99% of
most peoples standards of decent power

Ed, I checked the specs, Winnie uses the ISB in the 34 and 36' Journeys, moving up to the ISC in the 40 footer and ISL in the 42'.

IMHO an ISB is not the first choice in a big coach.

What brand of RV are you looking at? It is extremely rare for a 40' motorhome of any price range to have the IXB-6.7 engine in it. A lot of them have the 360hp ISC engine in them that has 950 ft-lb of torque. Unless you are bothered by the slower hill climbing ability of this combination, in my opinion it would be more than adequate to meet your needs.

Ed Headington

I don't know, my old 12 valve tows and get 12.5 mpg towing all over North America and its 210 hp so your 360 hp should do a good enough job.