mileage with 4" lift and 35s - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-28-2012, 08:52 AM
Member
 

Join Date: May 2012
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
mileage with 4" lift and 35s

How many MPGs have you guys lost after installing a 4" lift and 35s on a 7.3?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-28-2012, 11:15 AM
Premium Member
 

Join Date: Jan 2012
Location: Fallon, Nv
Posts: 2,402
Thanks: 52
Thanked 9 Times in 8 Posts
Feedback Score: 0 reviews
This is a trick question, because if you don't know how to claculate for the tire size, your mpg is going to look much worse than it really is.

Rate of change: how much larger is the new tire than the old? 34.6/31.5= 1.09
This means the rate of change is 9%. In simple terms, if your odometer says you went 100 miles, you really went 109.

Trip odometer x rate of change/gallons at fill up = mpg. To get the most accurate numbers, fill that dude till it comes out the neck during these tests. It could "click off" at different points giving erroneous results.

287 miles indicated and 22 gallons taken on would be 287x1.09=313 miles, divided by 22 gallons = 14.22 mpg. If you don't allow for rate of change, it would come out 13.04.

Do you see how it's a trick question now?
Reply With Quote Quick reply to this message
  #3  
Old 05-28-2012, 12:22 PM
Member
 

Join Date: May 2012
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yeah i understand about the speedo not being accurate but after you use this calculation how many mpg do you think I will loose 2,3 or?
Reply With Quote Quick reply to this message
  #4  
Old 05-28-2012, 12:26 PM
Premium Member
 

Join Date: Jan 2012
Location: Fallon, Nv
Posts: 2,402
Thanks: 52
Thanked 9 Times in 8 Posts
Feedback Score: 0 reviews
I lost 2 with my 6 litre, but it was on 285s when I bought it. Going from 265s to 315s, at least 2 mpg. Its the price of being cool.
Reply With Quote Quick reply to this message
  #5  
Old 05-28-2012, 05:39 PM
Member
 

Join Date: May 2012
Posts: 34
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Karls03 View Post
I lost 2 with my 6 litre, but it was on 285s when I bought it. Going from 265s to 315s, at least 2 mpg. Its the price of being cool.
Thats a cool way of putting it.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:

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
Display Modes

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



All times are GMT -8. The time now is 08:50 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors