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Re: Cummins vs hemi [Re: dusturbd340W5] #1679855 10/03/14 11:14 AM 10/03/14 11:14 AM
Joined: May 2003 Posts: 6,640 Downtown Roebuck Ont Twostick Still wishing...
Twostick Still wishing... Joined: May 2003 Posts: 6,640 Downtown Roebuck Ont	Quote: Quote: What's your true, no BS fuel mileage with that 14? My buddies 14 hemi halfton is doing better fuel mileage on the highway (empty of course) than my 05 Cummins, oh and diesel is currently 10% more expensive than gas at the pump. I remember the first time I drove my Brother's 90 Cummins 5 speed, it got 30MPG Imperial those days are gone (although they do live on in the imaginations of some). Sheldon true no BS is 10mpg pulling a 14k 5th wheel with cruise set at 70mph 16mpg 50/50 mix city/highway no trailer at an average of 80 on the interstate side I have not done a long enough trip empty for 100% highway yet. and all figures are hand calculated, they are not from the lieometer Just how much mileage do you expect at 80 MPH? Kevin

Re: Cummins vs hemi [Re: Twostick] #1679856 10/03/14 08:24 PM 10/03/14 08:24 PM
Joined: Jan 2003 Posts: 4,616 Kissimmee Fl. D dusturbd340W5 master
dusturbd340W5 master D Joined: Jan 2003 Posts: 4,616 Kissimmee Fl.	Quote: Quote: Quote: What's your true, no BS fuel mileage with that 14? My buddies 14 hemi halfton is doing better fuel mileage on the highway (empty of course) than my 05 Cummins, oh and diesel is currently 10% more expensive than gas at the pump. I remember the first time I drove my Brother's 90 Cummins 5 speed, it got 30MPG Imperial those days are gone (although they do live on in the imaginations of some). Sheldon true no BS is 10mpg pulling a 14k 5th wheel with cruise set at 70mph 16mpg 50/50 mix city/highway no trailer at an average of 80 on the interstate side I have not done a long enough trip empty for 100% highway yet. and all figures are hand calculated, they are not from the lieometer Just how much mileage do you expect at 80 MPH? Kevin I never said anything about it one way or another I just stated what it was getting and I am sure if it was 100% interstate driving it would be a little better. and yes the slower you drive the better it would be to a point. 70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4

Re: Cummins vs hemi [Re: dusturbd340W5] #1679857 10/04/14 11:35 PM 10/04/14 11:35 PM
Joined: Jan 2003 Posts: 43,963 Round Lake Beach, Illinoisy Rhinodart Rhinotruck
Rhinodart Rhinotruck Joined: Jan 2003 Posts: 43,963 Round Lake Beach, Illinoisy	I ran my 04 3500 single wheel 4x4 auto 100 miles at 75, 65, and 55 MPH empty not towing anything. It also have 4.10 gears. At 75 I got 16.3, 65 was 18.2, and 55 was 21.5 by the overhead. Of course a true test would be to try each MPH running through a full tank and hand calculate the MPG. I too am interested in the capability of the new 6.4 as I am tired of going through transmissions and injectors. The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it. JB Rhinehart, Realist A-Body's RULE!

Re: Cummins vs hemi [Re: RUNCHARGER] #1679858 10/07/14 01:39 PM 10/07/14 01:39 PM
Joined: Feb 2003 Posts: 10,354 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,354 Someplace you aren't	Quote: What's your true, no BS fuel mileage with that 14? My buddies 14 hemi halfton is doing better fuel mileage on the highway (empty of course) than my 05 Cummins, oh and diesel is currently 10% more expensive than gas at the pump. I remember the first time I drove my Brother's 90 Cummins 5 speed, it got 30MPG Imperial those days are gone (although they do live on in the imaginations of some). Sheldon The first gens were very simple and got great MPGs. If they weren't so old to be restoration candidates they would still be great trucks. Older vehicles just seem to have myriad issues due to age, harder all the time to use as a DD. I have other work to do than to play mechanic every few days on my DD. I want my fair share

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