Go Back   iRV2 Forums > MOTORHOME FORUMS > Toads and Motorhome Related Towing
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-14-2011, 09:44 AM   #1
Junior Member
 
Join Date: Jan 2011
Location: Texas
Posts: 18
Towing vs engine capacity

Well, on to something new (used). Have gotten a 2005 36 ft with an ISL02 400 hp cummins. I understand the axle or such ratio is 4.63. Any ideas what is a good, practical, limit for the weight of a toad for this engine? I understand that the hitch capacity is important, and GCVWR. Mike
__________________

__________________
Nutravlr is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-14-2011, 10:24 AM   #2
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Kitts Hill, OH
Posts: 1,863
Quote:
Originally Posted by Nutravlr View Post
Well, on to something new (used). Have gotten a 2005 36 ft with an ISL02 400 hp cummins. I understand the axle or such ratio is 4.63. Any ideas what is a good, practical, limit for the weight of a toad for this engine? I understand that the hitch capacity is important, and GCVWR. Mike
As I understand it that engine is used in some Over the road tractor trailer trucks, so it should be able to pull all the weight that the hitch and Trans could ever handle.
I'd be more concerned about keeping the trans cool than I would worry about the engine.
__________________

__________________
(RVM#26) THE U-RV 94 F-700/24 foot U-haul box home built RV
Mekanic is offline   Reply With Quote
Old 05-14-2011, 10:47 AM   #3
Senior Member
 
Triker56's Avatar
 
Fleetwood Owners Club
Join Date: Jun 2009
Posts: 3,948
Your limit will be what your tow bar is rated for or the GCWR.
Whichever you go over first.

Is your hitch a 10K or 15K one?
__________________
99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
Fulltime Since "99"
Triker56 is offline   Reply With Quote
Old 05-14-2011, 11:02 AM   #4
Moderator Emeritus
 
RickO's Avatar


 
Join Date: Jan 2007
Location: Litchfield Park, Arizona
Posts: 10,530
I have the ISL 400 in my 40' coach and pull a Ford Explorer. Can't even tell it's back there. You have plenty engine to tow whatever you want.

Rick
__________________
Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

2007 Itasca Ellipse 40FD
RickO is offline   Reply With Quote
Old 05-14-2011, 11:19 AM   #5
Senior Member
 
FlyingDiver's Avatar
 
Newmar Owners Club
Join Date: May 2007
Location: Somewhere....
Posts: 3,820
Quote:
Originally Posted by Nutravlr View Post
Well, on to something new (used). Have gotten a 2005 36 ft with an ISL02 400 hp cummins. I understand the axle or such ratio is 4.63. Any ideas what is a good, practical, limit for the weight of a toad for this engine? I understand that the hitch capacity is important, and GCVWR. Mike
The hitch and GCWR are way more important than the engine. Use those as your guideline, not the engine.

joe
__________________
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake
FlyingDiver is offline   Reply With Quote
Old 05-14-2011, 11:45 AM   #6
Junior Member
 
Join Date: Jan 2011
Location: Texas
Posts: 18
Smile engine tow capacity

Thanks to each of you, very much. I do not have delivery yet so do not recall the GCWR. The blue ox I am taking from my diesel Endura is a 10,000 model. I do not know what the hitch is on the MH, it kinda sticks thru the bumper, all I can report is a 2005 36 ft MH with that engine.
__________________
Nutravlr is offline   Reply With Quote
Old 05-14-2011, 11:48 AM   #7
iRV2 Marketing
 
DriVer's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Coastal Campers
Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,304
Blog Entries: 70
Quote:
Originally Posted by Nutravlr View Post
Well, on to something new (used). Have gotten a 2005 36 ft with an ISL02 400 hp Cummins. I understand the axle or such ratio is 4.63.
Mike, Who made the coach body? That will help. Typically vehicles with 400HP ISLs normally do a good job haulin' 10,000 pound toads.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
DriVer is offline   Reply With Quote
Old 05-14-2011, 01:15 PM   #8
Junior Member
 
Join Date: Jan 2011
Location: Texas
Posts: 18
towing capacity vs engines and chassis

Foretravel U270 2005 36 ft

I probably should know more but have been a bit overwhelmed with info. It similar to the Endura in some ways but more different, so new learning curve just begun. Thanks for your and others interest.

Mike
__________________
Nutravlr is offline   Reply With Quote
Old 05-14-2011, 01:18 PM   #9
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,757
Somehow, maybe call the factory, you need to find your GCWR and the hitch capacity. The formula for tow capacity is the GCWR minus the weight of the coach when ready to tow (ie loaded)...or the hitch capacity, which ever is less.

For example, say the GCWR is 50k and hitch capacity is 15k. If the coach weighs in at 30k, the tow capacity is 15k. If the coach weighs in at 40k, the tow capacity is 10k.
__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Old 05-14-2011, 06:11 PM   #10
Junior Member
 
Join Date: Jan 2011
Location: Texas
Posts: 18
towing capacity vs engines and chassis

Thanks but my concern is not violating weight limits but rather the limits of the engine and transmission. The transmission is a 3000 allison. My MH we are selling is a 300 hp duramax, 520 torque, maximum loaded MH of 19500 and GCWR of 26,000. So in theory I could go up to 6,000 or so toad. Nonetheless, to avoid stress to the system (I thought!) stayed with 3,700 toad, SMI brake. Under that same philosophy, wondered what I can do with this new (to us) system-------not stress that 8.9 cummins and 3000 alison and have plenty of power for hills and mountains
__________________
Nutravlr is offline   Reply With Quote
Old 05-14-2011, 07:33 PM   #11
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,757
Quote:
Originally Posted by Nutravlr View Post
Thanks but my concern is not violating weight limits but rather the limits of the engine and transmission. The transmission is a 3000 allison. My MH we are selling is a 300 hp duramax, 520 torque, maximum loaded MH of 19500 and GCWR of 26,000. So in theory I could go up to 6,000 or so toad. Nonetheless, to avoid stress to the system (I thought!) stayed with 3,700 toad, SMI brake. Under that same philosophy, wondered what I can do with this new (to us) system-------not stress that 8.9 cummins and 3000 alison and have plenty of power for hills and mountains
You are missing the point. The weights are based on the drive train...the engine and transmission, and everything else. Stick to the weights and you'll be fine.
__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Old 05-15-2011, 03:52 PM   #12
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,085
I'm towing a 4900 lb toad with my ISL370/3000MH combo. The combined weight of coach and toad, loaded for the road, is 37,700 lbs. Don't even know its there until I reach a 4-5% grade.

You have plenty of power - just stay within the hitch limits (probably 10,000 lbs or more).
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 05-15-2011, 04:19 PM   #13
Senior Member
 
Coma's Avatar
 
Monaco Owners Club
Join Date: Nov 2010
Location: The Emerald Coast
Posts: 1,757
It says here that 18k is hitch rating.

This says the difference between GVW and GCW is 10k. If I read it right.

So, if you load your MH to max then you can tow 10k.
__________________
Jim and Jennie, Cats=Bittles and Potter, 2000 Dynasty 350 ISC
2013 Silverado 4x4 Towed with R1200GS in bed.
PROV23:4 Do not wear yourself out to get rich; have the wisdom to show restraint.
Coma is offline   Reply With Quote
Old 05-15-2011, 08:12 PM   #14
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,757
Quote:
Originally Posted by Coma View Post
It says here that 18k is hitch rating.

This says the difference between GVW and GCW is 10k. If I read it right.

So, if you load your MH to max then you can tow 10k.
There is no MH with a hitch rated for 18k that I know of.

Read post #9...that explains it.
__________________

__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cummins Engine getting dirt in it lrodsangel Cummins Engines 27 05-24-2011 12:41 AM
Help figuring towing capacity BrianV National RV Owner's Forum 5 01-05-2011 11:43 AM
Slides, Leveling, Engine - Puzzled Rookie? Injun Joe Monaco Owner's Forum 60 09-04-2010 09:10 PM
Ford-Built Diesel Maximizes 2011 Super Duties Productivity DriVer RV Industry Press 24 06-09-2010 05:29 AM
Class C Towing capacity capt john Toads and Motorhome Related Towing 5 12-01-2005 05:04 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:41 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.