Economical Towing - HP intersects Torque?

Economical Towing - HP intersects Torque?

07-26-2008, 06:13 PM

#1 (permalink)

FredMaryLou

Offline
Join Date: Dec 2006 Location: S. E. Michigan Posts: 27

Economical Towing - HP intersects Torque?

Hi,

I read somewhere that the most economical RPMs for towing is where the Horsepower Curve and the Torque Curve intersect. We are preparing for a 7,000 mile tow. So, now is a good time to ask a couple questions.

If that is true (or not), at what RPM do they intersect on my 2008 6.7 Cummins 6-Speed automatic?

Does that mean downshifting to 5th or 4th to tow at that RPM intersection point is recommended?

FYI . . . I usually tow our 14,000 pound fifth wheel at 1,500 to 1,700 PRMs in 6th gear with a 4.10 axle.

Fred

__________________
2008 Dodge Ram 3500 Laramie Quad Cab 4x4 SRW - 6.7L Cummins, 6-Speed Automatic, 4.10 Axle

Non members can only view the initial post on threads more than 7 days old. There are 15 additional replies on this thread that you could view if you were a member.

TDR Membership offers many benefits including:

4 issues of the TDR magazine per year including these columns:
- Tailgating - A Letter From The Editor
- Letter Exchange - Responses From The Readers
- Member2Member - Members' Solutions To Members' Questions
- Technical Topics - Service/Parts Update
- First Generation - Owner-Specific Articles On The '89 - '93 Dodge Diesel Trucks
- 12-Valve Engines - Owner-Specific Articles On The '94 - '98.5 12-Valve Dodge Diesel Trucks
- 24-Valve Engines - Owner-Specific Articles On The '98.5 - '02 24-Valve Dodge Diesel Trucks
- Third Generation - Owner-Specific Articles On The '03 And Newer Dodge Diesel Trucks
- Blowin' In The Wind - Industry News
- Shadetree - Back To The Basics
- Celebrity Corner - The Shadetree Mechanic - Sam Memmolo
- From The Shop Floor - Tips From Turbo Diesel Repair Shops
- Products Showcase - Featured Products
- TDRelease - Vendor Press Releases
In many areas of the country a local chapter with events
A yearly printed copy of the TDR Travel companion listing approximately 700 TDR members across the country willing to help you if you have trouble on the road
Complete access to the TDR website including:
- Ability to do advanced searches over 1.1 million posts
- Access to members only forums (Truck 911, FAQ Forums, Discontinued parts support, Rigs spotted, Pay it forward, Other, and Political)
- Posting ability to the forums
- Ability to read an unlimited number of posts from the forums
- Can customize your forum list to your interests
- Can choose 1st, 2nd, 3rd gen, or rotating header graphics
- Limit searches to forums your interested in
- View posts since you last logged on
- Private message ability to other members
- Chat room access
- Diesel truck specific TSB listing by model year
- Online access to the Travel Companion database (with most current information)