What is the best air pressue to run with stock tires on a 4x4

motornut1965 · 09-26-2007, 05:27 PM

I am taking a long trip un-loaded with 2007 CTD 4x4, what would be the Best Ride and MPG combo on the tire air pressure? Right now I am running 54# F and 50# R

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2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.

prockfish · 09-26-2007, 05:44 PM

i would like to know as well?

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07 mega cab.. 4 X 4.. 5.9.. 6sp.. D-badged.. stg 2 with amsoil in it.. turbo back 5" aero turbine.. workhorse triple play/off.. puck/90 and a smoken rattlen smarty....

12V NATION · 09-26-2007, 06:42 PM

me too... i would guess the more air the less rolling resistance since you start to run up on the center of the tire... but what is to much... especially at the expense of the tire...

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'98 12V, 4X4, AUTO, CUSTOM EDM CUT FUEL PLATE, 3K PIERS GSK KIT, 16 DEG TIMING, GUTTED AFC, 4'' TO 5'' TO 6'' GRAND ROCK SINGLE STACK, CUSTOM BOOST ELBOW, BHAF, AUTO METER GAUGES (B,T,P), SILENCER RING M.I.A., TABBED KDP,

:THREAT:

motornut1965 · 09-27-2007, 01:24 PM

I just called my Dealer and he suggested 55 # front and 50# rear unloaded.

__________________
2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.

mab · 09-27-2007, 01:28 PM

I checked with the listing on the tires and they are rated at 50#'s. My tire guy says to run 55#F and 50#R unloaded and 60/60 loaded.

__________________
01 2500 4x4 w/Banks PowerPac

***BBRam*** · 09-27-2007, 01:29 PM

There is a label inside of the driver's door with the manufacture suggested air pressure's.:thumbsup

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03-3500, DRW, QC, 4x4, R850 BD Twins, BD IC Boots, BD Billet Flexplate, Full Billet DTT Trans, Lockup Switch, SMARTY TNT-R / TS MP-8, Wicked Diesels Eliminator Fuel System & Coolant Bypass, Floor It Stage 3 CP3 & Rail Cap, BIG Stix's by FTE, ARP Head Stud's, Springs, Fluidampr, ATS ARC-FLOW, Mag-Hytec, AFE, Boost, Drive Pressure, Pyro, Fuel Pressure, Tran's Temp, Rail Pressure Gauge, GDP Ladder Bars, GrandRock 7" Miters. (R/T .021, 60' 1.76, 1/4 ET 13.03 @ 102.05 mph)

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Dad · 09-27-2007, 01:47 PM

I run 55 in the front and 50 in the rear unloaded. I think those are both 5 PSI what is on the label inside the door. Too much air will wear the center out on the tire in a hurry, not to mention ride like a milk wagon..

__________________
A wise man speaks when he has something to say. Fools speak when they have to say something.

SledNeck91604 · 09-27-2007, 04:24 PM

from our own cummins data base...
http://www.cumminsdatabase.com/image...hart_ram4x.gif

__________________
1990 D250 rc/lb auto, straight pipe
1998 12v qc/sb 4x4 auto, exhaust housing, plate MIA
1994 rc/lb 4x4 5-speed 4.10 straight pipe n free mods (burnt to the ground)

EquipmentUser · 09-27-2007, 04:26 PM

Mine says loaded 70 rear, 60 front, and unloaded 50 front and 40 rear. Thats whats on the sticler on the inside of the drivers side door.

__________________
2006 5.9 2500 Quad Cab 4x4 SWB, 48RE, Smarty Jr, Icebox with S & B, Straight Pipe with FTE resonator, dipricol optix guages, 2" HBS level Kit, 35x12.50 Toyo MT's, BD flex plate, Goerend triple disc converter, Goerend VB

Equine Tug · 09-27-2007, 06:21 PM

I run 60 in the front and 40 in the rears as recommended on the door jam of the drivers door it has 2 recommendations one for light load and one for heavy load. I still have the stock OEM tires on, and now have 60k on them will get most likely 70k out of them. I have a 2005 Quad cab Laramie with 5.9 CTD and a G56 4:10 and a Detroit Locker

Marine · 09-27-2007, 06:45 PM

My tires are rated at 80 # Max pressure. I run full pressure when I pull the trailer and 70F/ 65 R when it is just the 4-wheeler in the back.
Weight of my truck is 7640 with 2 people and truck box in the back.

__________________
Mike

2001.5 2500 4x4 QC, Vulcan Fuel System with GDP Walbro pump. HTB2 62/13 SS, DDP 95 HP Injectors, HTT Pulse Manifold, Silicone boots and hoses, Comp, Smarty, BMK-11, 4090 Amsoil Air filter, Amsoil throughout. NRA Member.

motornut1965 · 09-27-2007, 06:52 PM

My Driver's Door Sticker 60# R 65# F with my stock tires but the dealerships says only if your carrying a load that I should run those PSIs.

__________________
2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.

09-26-2007, 05:27 PM	#1 (permalink)
motornut1965 Cummins Fanatic Join Date: Feb 2007 Location: Maine Posts: 107 Thanks: 0 Thanked 0 Times in 0 Posts motornut1965's Truck Pics	What is the best air pressue to run with stock tires on a 4x4 I am taking a long trip un-loaded with 2007 CTD 4x4, what would be the Best Ride and MPG combo on the tire air pressure? Right now I am running 54# F and 50# R __________________ 2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.

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09-26-2007, 05:44 PM	#2 (permalink)
prockfish Cummins Fan Join Date: May 2007 Location: Texas Posts: 64 Thanks: 0 Thanked 0 Times in 0 Posts prockfish's Truck Pics	i would like to know as well? __________________ 07 mega cab.. 4 X 4.. 5.9.. 6sp.. D-badged.. stg 2 with amsoil in it.. turbo back 5" aero turbine.. workhorse triple play/off.. puck/90 and a smoken rattlen smarty....

09-26-2007, 06:42 PM	#3 (permalink)
12V NATION Newbie Join Date: Sep 2007 Location: ALB, NM. Posts: 24 Thanks: 0 Thanked 0 Times in 0 Posts 12V NATION's Truck Pics	me too... i would guess the more air the less rolling resistance since you start to run up on the center of the tire... but what is to much... especially at the expense of the tire... __________________ '98 12V, 4X4, AUTO, CUSTOM EDM CUT FUEL PLATE, 3K PIERS GSK KIT, 16 DEG TIMING, GUTTED AFC, 4'' TO 5'' TO 6'' GRAND ROCK SINGLE STACK, CUSTOM BOOST ELBOW, BHAF, AUTO METER GAUGES (B,T,P), SILENCER RING M.I.A., TABBED KDP, :THREAT:

09-27-2007, 01:24 PM	#4 (permalink)
motornut1965 Cummins Fanatic Join Date: Feb 2007 Location: Maine Posts: 107 Thanks: 0 Thanked 0 Times in 0 Posts motornut1965's Truck Pics	I just called my Dealer and he suggested 55 # front and 50# rear unloaded. __________________ 2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.

09-27-2007, 01:28 PM	#5 (permalink)
mab Newbie Join Date: Sep 2007 Location: Oregon Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts mab's Truck Pics	I checked with the listing on the tires and they are rated at 50#'s. My tire guy says to run 55#F and 50#R unloaded and 60/60 loaded. __________________ 01 2500 4x4 w/Banks PowerPac

09-27-2007, 01:29 PM	#6 (permalink)
*BBRam* #1 Thread Derailer Join Date: Jan 2006 Location: Chelsea MI Posts: 25,445 Thanks: 338 Thanked 558 Times in 332 Posts BBRam's Truck Pics	There is a label inside of the driver's door with the manufacture suggested air pressure's.:thumbsup __________________ 03-3500, DRW, QC, 4x4, R850 BD Twins, BD IC Boots, BD Billet Flexplate, Full Billet DTT Trans, Lockup Switch, SMARTY TNT-R / TS MP-8, Wicked Diesels Eliminator Fuel System & Coolant Bypass, Floor It Stage 3 CP3 & Rail Cap, BIG Stix's by FTE, ARP Head Stud's, Springs, Fluidampr, ATS ARC-FLOW, Mag-Hytec, AFE, Boost, Drive Pressure, Pyro, Fuel Pressure, Tran's Temp, Rail Pressure Gauge, GDP Ladder Bars, GrandRock 7" Miters. (R/T .021, 60' 1.76, 1/4 ET 13.03 @ 102.05 mph) July 2009 Cummins Forum ROTM Winner 95 1500 Sport 2wd Cummins Drag Truck under construction. "In search of the Magic Dyno"

09-27-2007, 01:47 PM	#7 (permalink)
Dad Administrator Join Date: May 2007 Location: Indiana Posts: 5,527 Thanks: 20 Thanked 237 Times in 92 Posts Dad's Truck Pics	I run 55 in the front and 50 in the rear unloaded. I think those are both 5 PSI what is on the label inside the door. Too much air will wear the center out on the tire in a hurry, not to mention ride like a milk wagon.. __________________ A wise man speaks when he has something to say. Fools speak when they have to say something.

09-27-2007, 04:24 PM	#8 (permalink)
SledNeck91604 Cummins Fan Join Date: Aug 2006 Location: Berlin, MA Posts: 56 Thanks: 0 Thanked 0 Times in 0 Posts SledNeck91604's Truck Pics	from our own cummins data base... http://www.cumminsdatabase.com/image...hart_ram4x.gif __________________ 1990 D250 rc/lb auto, straight pipe 1998 12v qc/sb 4x4 auto, exhaust housing, plate MIA 1994 rc/lb 4x4 5-speed 4.10 straight pipe n free mods (burnt to the ground)

09-27-2007, 04:26 PM	#9 (permalink)
EquipmentUser Cummins Fanatic Join Date: Sep 2007 Posts: 105 Thanks: 0 Thanked 1 Time in 1 Post EquipmentUser's Truck Pics	Mine says loaded 70 rear, 60 front, and unloaded 50 front and 40 rear. Thats whats on the sticler on the inside of the drivers side door. __________________ 2006 5.9 2500 Quad Cab 4x4 SWB, 48RE, Smarty Jr, Icebox with S & B, Straight Pipe with FTE resonator, dipricol optix guages, 2" HBS level Kit, 35x12.50 Toyo MT's, BD flex plate, Goerend triple disc converter, Goerend VB

09-27-2007, 06:21 PM	#10 (permalink)
Equine Tug Cummins Fanatic Join Date: Sep 2007 Location: Athens,Tennessee Posts: 151 Thanks: 0 Thanked 0 Times in 0 Posts Equine Tug's Truck Pics	I run 60 in the front and 40 in the rears as recommended on the door jam of the drivers door it has 2 recommendations one for light load and one for heavy load. I still have the stock OEM tires on, and now have 60k on them will get most likely 70k out of them. I have a 2005 Quad cab Laramie with 5.9 CTD and a G56 4:10 and a Detroit Locker

09-27-2007, 06:45 PM	#11 (permalink)
Marine Diesel Freak Join Date: Sep 2006 Location: Bozeman, MT Posts: 890 Thanks: 0 Thanked 0 Times in 0 Posts Marine's Truck Pics	My tires are rated at 80 # Max pressure. I run full pressure when I pull the trailer and 70F/ 65 R when it is just the 4-wheeler in the back. Weight of my truck is 7640 with 2 people and truck box in the back. __________________ Mike 2001.5 2500 4x4 QC, Vulcan Fuel System with GDP Walbro pump. HTB2 62/13 SS, DDP 95 HP Injectors, HTT Pulse Manifold, Silicone boots and hoses, Comp, Smarty, BMK-11, 4090 Amsoil Air filter, Amsoil throughout. NRA Member.

09-27-2007, 06:52 PM	#12 (permalink)
motornut1965 Cummins Fanatic Join Date: Feb 2007 Location: Maine Posts: 107 Thanks: 0 Thanked 0 Times in 0 Posts motornut1965's Truck Pics	My Driver's Door Sticker 60# R 65# F with my stock tires but the dealerships says only if your carrying a load that I should run those PSIs. __________________ 2007 Dodge Ram 4x4 2500 5.9 Laramie Quad Cab,Leather, Sat Radio, Cab Lights, Bed Liner, Bed Cover,Wheel Liners Tow Mirrors. Banks Monster Exhaust System,Air Box.