Mpg Increase After Ratio Change !!
Junior User
Joined: Sep 2005
Posts: 95
Likes: 0
I don't think it was mentioned,so I must ask;was the speedo recalibrated for the new gears?That could be where the better mileage figures are coming from.I do agree that with tall tires,410's would/should give better mileage as the overall ratio would be closer to stock ratio.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
My truck came stock with 3.07 gears and about 29" tires.
Right now I have 3.50 gears and 29" tires and when I figure out the mileage. I have to subtract 1 MPG. When it says I get 15, I know I'm really getting 14. Not that for off.
Right now I have 3.50 gears and 29" tires and when I figure out the mileage. I have to subtract 1 MPG. When it says I get 15, I know I'm really getting 14. Not that for off.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
http://store.summitracing.com/partde...5&autoview=sku
Summit racing has a few headers you might want to look at.
http://store.summitracing.com/egnsea...view=sku&RC=10
This link has all of them.
Good luck
Summit racing has a few headers you might want to look at.
http://store.summitracing.com/egnsea...view=sku&RC=10
This link has all of them.
Good luck
Elder User
Joined: Jul 2003
Posts: 599
Likes: 0
From: VB. Virginia
A good 3" exhaust system with headers, K&N drop in filter, and advance timing will go a long way as far as waking up a 5.0 engine.
Last edited by 94 XLT White/ Silver 302; Apr 30, 2006 at 04:23 PM.
Junior User
Joined: Mar 2003
Posts: 83
Likes: 0
oh yes. i had a 93' 5.0 with hedman headers no cats and dual 3" pipes going to glasspacks with the k&n, superior engineered cold air homemade system, electric fan...even though it was lifted 4" on 35" tires that bad boy would take off like a rocket from a stop. it had stock gears. i beat a new chevy truck for a little while but he eventually caught up.
<img src="http://myspace-602.vo.llnwd.net/00639/20/63/639333602_l.jpg">
<img src="http://myspace-602.vo.llnwd.net/00639/20/63/639333602_l.jpg">
Thread
Thread Starter
Forum
Replies
Last Post
glockholiday
1999 - 2003 7.3L Power Stroke Diesel
11
Nov 30, 2014 07:20 PM
tschrubb
1999 - 2016 Super Duty
1
Aug 7, 2011 09:38 AM
radialarm
1987 - 1996 F150 & Larger F-Series Trucks
13
Oct 1, 2007 05:35 PM
laswalker
Clutch, Transmission, Differential, Axle & Transfer Case
3
Jul 20, 2006 08:14 PM
