Best RPM range? - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 Old 08-17-2007, 12:02 AM Thread Starter
Member
 
gzartman's Avatar
 
Join Date: Apr 2007
Location: Columbia City, Oregon
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Talking Best RPM range?

Hey guys; I've got a 2000 F350 crew cab. I drive 58 miles round trip to work and back. I cruise at 60mph all the way on cruise control and the RPM's are around 1400 to 1500 max getting about 16 miles per gallon. My question is, should I gear down so I run a higher RPM? I believe I have stock gears (3.73) What is the optimal RPM's for cruising 60mph? I would like to get close to 20mpg if I can. Oh, almost forgot: I have a tymar intake, 4" turbo back exhaust with muffler delete, and Edge Evolution programmer set @ 80 horse, Trans., Pyro, and boost gauge. The boost runs at about 4 psi at 60mph, if I gear lower would it get the boost up and get better mpg? Thanks for all you help, this site is AWESOME!!!!!!
gzartman is offline  
post #2 of 18 Old 08-17-2007, 01:46 AM
Powerstroke.org Rookie
 
Join Date: Mar 2007
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I usually run at 1900 on trips which is 70mph and I get 19mpg. I would think that more rpm and more boost would use more fuel.
7.3XSC is offline  
post #3 of 18 Old 08-17-2007, 02:32 AM
FJuanfiddy mod


 
Dave's Avatar
 
Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,828
Thanks: 132
Thanked 186 Times in 166 Posts
Mentioned: 0 Post(s)
Quoted: 7 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
stick with the 3.73's going up to 4.10s will use more fuel

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
Dave is offline  
post #4 of 18 Old 08-17-2007, 02:37 AM
Serving Our Country!
 
payne5757's Avatar
 
Join Date: Sep 2006
Location: middle of nowhere
Posts: 1,103
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
When I travel I cruise at a constant 68mph which is barely over 1900rpms and I get 19+ through hills in TN and VA and 21+ on flat land like in TX.

2000 Ford F250 Super Duty Powerstroke ( 7,460lbs 5in rough country lift, 18in XD Revolvers, 35in Dura Grapplers, bilsteins all around, 4in.MBRPstraight pipe,WW,TS 6 pos chip,TS Monitor w/HUD,Tymar,map fooler,foil delete, zoodad, Kenwood stereo, pioneer 6x8s, JL 500V1 amp, and one JL12w7)
payne5757 is offline  
post #5 of 18 Old 08-17-2007, 02:52 AM
Rob
Super Moderator



 
Rob's Avatar
 
Join Date: Aug 2006
Location: Layton, Utah
Posts: 13,244
Thanks: 3
Thanked 7 Times in 4 Posts
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
Send a message via AIM to Rob Send a message via MSN to Rob Send a message via Skype™ to Rob
i think that if you raise the RPM's you will use more fuel. i may be wrong but thats my opinion!!!! man 58 miles round trip....whew!


Audentes Fortuna Juvat
(Fortune Favors The Bold)
Rwalker@Powerstroke.Org
The Org. Staff reserves the right to
move, modify, delete or merge threads/posts
at our discretion, without explanation
at any time.
Rob is offline  
post #6 of 18 Old 08-17-2007, 01:01 PM Thread Starter
Member
 
gzartman's Avatar
 
Join Date: Apr 2007
Location: Columbia City, Oregon
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks guys! yeah, I've been doing the same round trip to work and back for over 10 yrs now. I usually have a smaller car that gets good gas mileage but now I have this great powerstroke and I won't drive anything else. Just trying to get the best MPG's I can. I work in Portland, Or. but don't like the city crowds so we live out in the country.
gzartman is offline  
post #7 of 18 Old 08-18-2007, 02:56 AM
Serving Our Country!
 
payne5757's Avatar
 
Join Date: Sep 2006
Location: middle of nowhere
Posts: 1,103
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Rwalker29 View Post
i think that if you raise the RPM's you will use more fuel. i may be wrong but thats my opinion!!!! man 58 miles round trip....whew!
Every vehicle has an optimum rpm to speed ratio and Im pretty sure its 1800-1900rpms for our trucks. Meaning whichever speed that is at is the peak of good mileage while going the fastest before engine speed is detrimental to mileage.

2000 Ford F250 Super Duty Powerstroke ( 7,460lbs 5in rough country lift, 18in XD Revolvers, 35in Dura Grapplers, bilsteins all around, 4in.MBRPstraight pipe,WW,TS 6 pos chip,TS Monitor w/HUD,Tymar,map fooler,foil delete, zoodad, Kenwood stereo, pioneer 6x8s, JL 500V1 amp, and one JL12w7)
payne5757 is offline  
post #8 of 18 Old 08-18-2007, 04:43 AM
Compression Ignition Addict
 
NOVAJOE105's Avatar
 
Join Date: Jan 2007
Location: RICHLAND, INDIANA
Posts: 1,198
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
My ol beast has 4.10's and I run about 2,000 on the tach at 60-65 and get around 18-18.5 going back and forth to work. WE jsut got back from a trip to the Outer Banks and South Carolina and we got around 19-20 most of that trip running 70-75 most of the time. It all depends on the truck I guess...lol

[/SIZE]
1995 F-250 4X4
7.3 DIT E4OD
4.10:1 Gears with posi rear
Shimmed FPR
ITP HPX oil crossover line
Cat and mufler delete
LT285/75R16 BFG A/T KO
RECON Line of fire with ice
178RWHP 349RWTQ....JUST THE BEGINNING
IN THE WORKS:
6" Mitre cut stacks
DP F5
EGT, Trans, Boost gauges
Electric fuel system


Other toy

1990 Chevy with a carbureted 454...kinda quick...lolSOLD!!
NOVAJOE105 is offline  
post #9 of 18 Old 08-18-2007, 09:51 AM
Let's go B's!!!!

 
Southpaw's Avatar
 
Join Date: Mar 2007
Location: Remington, Va. U.S.A.
Posts: 6,017
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 5 reviews
I'm jealous--58 miles roundtrip. I drive 62 miles one way! Every day.
I have 3.73's in mine and i'm at 2000 rpms at 70 mph. With my mods, I get almost 20 MPG. I think the best way to get the best milage is like I was told, Keep your boost under 5 lbs. and keep your EGT's about 700, no matter what gear or speed, that will give you the best milage.

Chris

2002 Crew Cab Long Bed
4" BDS, 35x13.50 Cooper STT on 20x10 Black Rockstars, and other stuff.....310,000 miles and counting...
<><
2 Thessalonians 3 v.6-15

Southpaw is offline  
post #10 of 18 Old 08-18-2007, 10:01 AM
duct tape & zip ties

 
bigcountrysg's Avatar
 
Join Date: Jul 2006
Location: Willis, MI
Posts: 10,761
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
For fuel Mileage you would want to go to 3.55:1 gear ratio. That will lower your engine speed while cruising but you will loose acceleration if you do that. I suggest you turn your edge down to give you more mpg.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
bigcountrysg is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome