• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

What did you do to your Ranger today? (Part Deux!)

85_Ranger4x4

Forum Staff Member
Forum Moderator
Article Contributor
V8 Engine Swap
OTOTM Winner
TRS Banner 2010-2011
TRS 20th Anniversary
TRS Event Participant
Joined
Aug 7, 2007
Messages
29,473
Reaction score
12,312
Points
113
Location
SW Iowa
Vehicle Year
1985
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Manual
Did some some black friday/weekend shopping for it...
 


85_Ranger4x4

Forum Staff Member
Forum Moderator
Article Contributor
V8 Engine Swap
OTOTM Winner
TRS Banner 2010-2011
TRS 20th Anniversary
TRS Event Participant
Joined
Aug 7, 2007
Messages
29,473
Reaction score
12,312
Points
113
Location
SW Iowa
Vehicle Year
1985
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Manual

PetroleumJunkie412

2.9 Mafia
TRS 20th Anniversary
Joined
Oct 31, 2018
Messages
7,304
Reaction score
5,707
Points
113
Location
Dirtman's Basement
Vehicle Year
1988
Make / Model
Ranger
Engine Size
2.9l Trinity
Transmission
Manual
2WD / 4WD
4WD
My credo
Give 'yer balls a tug. Fight me.

sgtsandman

Aircraft Fuel Tank Diver
Forum Moderator
Supporting Member
U.S. Military - Active
TRS 20th Anniversary
TRS Event Participant
Ham Radio Operator
GMRS Radio License
Joined
Mar 11, 2017
Messages
8,453
Reaction score
6,215
Points
113
Location
Aliquippa, PA
Vehicle Year
2011
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Engine Size
4.0 SOHC
Transmission
Manual
2WD / 4WD
4WD
Total Lift
Pre-2008 lift
Tire Size
31X10.5R15

85_Ranger4x4

Forum Staff Member
Forum Moderator
Article Contributor
V8 Engine Swap
OTOTM Winner
TRS Banner 2010-2011
TRS 20th Anniversary
TRS Event Participant
Joined
Aug 7, 2007
Messages
29,473
Reaction score
12,312
Points
113
Location
SW Iowa
Vehicle Year
1985
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Manual

lil_Blue_Ford

Well-Known Member
Forum Moderator
V8 Engine Swap
TRS 20th Anniversary
Joined
Aug 6, 2007
Messages
6,067
Reaction score
2,171
Points
113
Location
Butler, PA, USSA
Vehicle Year
95
Make / Model
Ford
Engine Size
4.9L
Transmission
Manual

ekrampitzjr

Active Member
Joined
May 28, 2021
Messages
236
Reaction score
237
Points
43
Location
Virginia
Vehicle Year
2011
Make / Model
Ford Ranger
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
2WD
First time in a while, checked the air in all four tires before a trip on Saturday and found the rears were just below 30 psi. Surprised the tire sensors didn't turn on the nag light on the dash display, because any tire getting below 30 is when the one in my Mazda trips. The fronts were around 31–32 psi.

Topped the front tires to 38 and the rears to 40. On the trip my fuel economy went from 20 miles per gallon to 22, staying at 55–60 mph most of the way.

When the temperature drops and stays cool, check your tire pressure because it will go down with temperature.
 

sgtsandman

Aircraft Fuel Tank Diver
Forum Moderator
Supporting Member
U.S. Military - Active
TRS 20th Anniversary
TRS Event Participant
Ham Radio Operator
GMRS Radio License
Joined
Mar 11, 2017
Messages
8,453
Reaction score
6,215
Points
113
Location
Aliquippa, PA
Vehicle Year
2011
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Engine Size
4.0 SOHC
Transmission
Manual
2WD / 4WD
4WD
Total Lift
Pre-2008 lift
Tire Size
31X10.5R15
Every 10 degree of drop or increase in temperature equals about 1 psi of change in tire pressure when they are cold (driven less than a mile or has sat more than 3 hours).

Plus whatever leakage the tires might have on their own. Even a brand new tire on a brand new rim will lose air over time.

As far as the stated tire pressures, it’s your truck and too much pressure is less of a problem than not enough. Even with LT tires, tire pressure shouldn’t be more than 35-36 unless you are hauling a load.
 

Rowdy Fitzgerald

Hog hunter
Firefighter
EMT / Paramedic
V8 Engine Swap
OTOTM Winner
Solid Axle Swap
Joined
Aug 29, 2008
Messages
3,666
Reaction score
702
Points
113
Location
Squaw Valley, Ca
Vehicle Year
1987
Make / Model
Ford
Engine Type
V8
Engine Size
302
Transmission
Manual
Total Lift
6”
Tire Size
35
My buddy taught me how to “chalk” a tire when setting the psi. So you’ll need to do this on decently flat paved road. Get kids sidewalk chalk, cover the tread of the tires from sidewall to sidewall and halfway around each tire. Drive forward 50 foot and see how much chalk wore off. Adjust the psi up or down until the only chalk that doesn’t get worn off is on the outside 1/4” or so of the tread.
 

sgtsandman

Aircraft Fuel Tank Diver
Forum Moderator
Supporting Member
U.S. Military - Active
TRS 20th Anniversary
TRS Event Participant
Ham Radio Operator
GMRS Radio License
Joined
Mar 11, 2017
Messages
8,453
Reaction score
6,215
Points
113
Location
Aliquippa, PA
Vehicle Year
2011
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Engine Size
4.0 SOHC
Transmission
Manual
2WD / 4WD
4WD
Total Lift
Pre-2008 lift
Tire Size
31X10.5R15
The other way to do it is to take the max psi of the OEM tire and divide the max load by the max psi. That will give you the number of pounds per 1 pound per square inch that tire will hold. Multiply that number by the recommended psi to get the load per tire the truck was set for.

Now do the same thing for the new tire. Divide the max load by the max psi. Take that number and divided by the load set by the manufacturer to get the psi needed for the new tire. It’s usually pretty close to the OEM recommendation.

Some tires, like LTs, don’t like too much pressure for the weight carried. They tend to wander and not track straight. Other tires won’t care but will wear faster in the center because there is too much pressure and it’s rounding out the tire.

Rowdy’s suggestion will definitely work but the above will get you right on the money with less playing with psi numbers to dial it in. But the above method requires doing math and I know some hate doing math.
 

lil_Blue_Ford

Well-Known Member
Forum Moderator
V8 Engine Swap
TRS 20th Anniversary
Joined
Aug 6, 2007
Messages
6,067
Reaction score
2,171
Points
113
Location
Butler, PA, USSA
Vehicle Year
95
Make / Model
Ford
Engine Size
4.9L
Transmission
Manual
I know with my choptop when I put the 35’s on I put 35# of air in them. Thing rode worse than a brick. Did the chalk trick, and finally settled on 10-12 psi rear and 12-14 psi front. Tread wears evenly and I don’t feel every pebble. Want to say I’m around 25 psi in the Ranger and I almost think it’s still a little on the hard side.
 

Rowdy Fitzgerald

Hog hunter
Firefighter
EMT / Paramedic
V8 Engine Swap
OTOTM Winner
Solid Axle Swap
Joined
Aug 29, 2008
Messages
3,666
Reaction score
702
Points
113
Location
Squaw Valley, Ca
Vehicle Year
1987
Make / Model
Ford
Engine Type
V8
Engine Size
302
Transmission
Manual
Total Lift
6”
Tire Size
35
I like running load range E tires, so I don’t run much pressure in them either.
 

CrabGuy

Well-Known Member
Supporting Member
U.S. Military - Veteran
Joined
Feb 24, 2021
Messages
193
Reaction score
273
Points
63
Location
Sacramento, CA/Seal Rock, OR
Vehicle Year
2004-Bone stock
Make / Model
Ranger XLT
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
My credo
Why should I pay someone else to screw it up when I can screw it up myself for free?
A man with a tire pressure gauge will always know the exact pressure; a man with two gauges will never know.
 

PetroleumJunkie412

2.9 Mafia
TRS 20th Anniversary
Joined
Oct 31, 2018
Messages
7,304
Reaction score
5,707
Points
113
Location
Dirtman's Basement
Vehicle Year
1988
Make / Model
Ranger
Engine Size
2.9l Trinity
Transmission
Manual
2WD / 4WD
4WD
My credo
Give 'yer balls a tug. Fight me.

Sponsored Ad


Sponsored Ad

Top