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02-07-2014, 07:55 PM
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rough around the edges
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Join Date: Nov 2011
Posts: 72
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highway RPMs?
Hey I have a 04 4.0 with 4.10 rear and my local speed limit changed to 70mph and at 70 I'm running around 2500rpm. I was wondering will 2500-3000 rpm hurt the truck for a 1.5-2 hour drive?
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2004 Ford Ranger XLT Supercab 4.0 V6, 5 Speed Manual, Turn signal mod, LED tailgate light bar, Toyo A/T Tires, Stock rims painted black, modded gauges, rear leaf blocks and front torsion adjusted.
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02-07-2014, 08:08 PM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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As long as everything is functioning as it should, there should be absolutely no problem at all doing that.
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2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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02-07-2014, 09:33 PM
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Learning to use the forums
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Join Date: Dec 2013
Posts: 12
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Re: highway RPMs?
most cruse at 75+ around here. as was said above should not hurt a thing but mpg.
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02-07-2014, 09:56 PM
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Ford lover
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Join Date: Jan 2012
Posts: 7,058
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Quote:
Originally Posted by Brian550336
Hey I have a 04 4.0 with 4.10 rear and my local speed limit changed to 70mph and at 70 I'm running around 2500rpm. I was wondering will 2500-3000 rpm hurt the truck for a 1.5-2 hour drive?
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That's about right for 4.0 with 4.10s. My 3.0 with 4.10s actually ran a little faster at that speed. 2500 rpm is where it should be. 3000 rpm is a bit much and about at shifting speed.
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2003 Ford Ranger FX4: 4.0L V6 | Auto | 4.10s | 265/75R16 BFG AT KO2 | Ion Alloy 174 | Pioneer radio | Alpine Speakers| 06 tails | Thunderbolt turn signal mirrors | Kobalt Toolbox | 22" LED lightbar | Blackout headlights | Headache Rack | 140K miles. DWB!
Build Thread <-- Clicky
March 2015 TOTM
2016 Ford Fusion SE. 1.5L EcoBoost. 6-speed Auto. White Platinum Tri-Coat Metallic. 18" 5 spoke black rims. Daily Driver.
Quote:
Originally Posted by OhioMike
One can never have too many detailing supplies.
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02-07-2014, 10:35 PM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Re: highway RPMs?
Im almost at 3k going 70-75 mph. Anything above, i would say 4500-5000 rpms is a no go, but the truck wont go that fast because of the limiter, so youre good.
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2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick  | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's| |
02-08-2014, 07:32 AM
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Learning Generally
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Join Date: Feb 2014
Posts: 27
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Re: highway RPMs?
At 100 kmh, I'm at about 2300-2500. I'll go up up 70 mph today and see what the tach says.
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1998 Mazda B4000
2005 Ford Focus Wagon
1983 Suzuki GS 600
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02-08-2014, 08:17 AM
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Stale Newbie
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Join Date: Sep 2012
Posts: 1,023
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Re: highway RPMs?
Quote:
Originally Posted by Brian550336
Hey I have a 04 4.0 with 4.10 rear and my local speed limit changed to 70mph and at 70 I'm running around 2500rpm. I was wondering will 2500-3000 rpm hurt the truck for a 1.5-2 hour drive?
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That's about where I run too (03 4.0/4.10's).
I spent a little over an hour each way on the freeway @75 to get to the local cabelas(yeah, they get a lot of my money!), haven't had any ill effects from it yet. That is, other than a drop in MPG. Occasionally I get it up to 80-85, still runs like a top even at that speed.
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A Bad Day Fishing is Better Than a Good Day at Work
2003 RangerXLT Supercab 4.0SOHC/Auto 4x4. DWB.
Turn Signal Mod. Fog Light mod. ACC power mod. Rhino Lined bed. LED gauges. 
Quote:
Originally Posted by djfllmn
do it nice or do it twice
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02-08-2014, 01:49 PM
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Old man driver.
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Join Date: Nov 2009
Posts: 14,894
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Re: highway RPMs?
everyone who has a 2001+ 4.0 should be running the same RPM's at 70 MPH. It's the same engine.
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2001 Ranger Edge 4x4 (sold)
2006 F150 Lariat 4x4 (sold)
2007 Explorer XLT (Destroyed by Deer on highway)
2014 Explorer XLT (inherited from parents)
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02-08-2014, 01:52 PM
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Ford Truck Driver
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Join Date: May 2012
Posts: 86
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Quote:
Originally Posted by machine
everyone who has a 2001+ 4.0 should be running the same RPM's at 70 MPH. It's the same engine.
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but we all have different gear ratios, but yeah my truck is 03 4.0/410s and you'll be fine. The 4.0s can take 2500-3000 all day and love it
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02-08-2014, 03:15 PM
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Ford Ranger Driver
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Join Date: Dec 2013
Posts: 1,609
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Quote:
Originally Posted by machine
everyone who has a 2001+ 4.0 should be running the same RPM's at 70 MPH. It's the same engine.
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Lol, No.
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Too much, look at my build thread
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02-08-2014, 03:38 PM
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Learning Generally
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Join Date: Feb 2014
Posts: 27
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Re: highway RPMs?
About 2400.
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1998 Mazda B4000
2005 Ford Focus Wagon
1983 Suzuki GS 600
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02-08-2014, 04:05 PM
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Ford Ranger Driver
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Join Date: Mar 2013
Posts: 6,187
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Quote:
Originally Posted by Brian550336
Hey I have a 04 4.0 with 4.10 rear and my local speed limit changed to 70mph and at 70 I'm running around 2500rpm. I was wondering will 2500-3000 rpm hurt the truck for a 1.5-2 hour drive?
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75mph with 3.73s and 31s
Bout 2600 to 2700
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95 Ranger XLT 4x2 2.3 I4 5 speed 206,000 *dead* 
96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive* 
D35 front, 8.8 rear, 3.73 gears, limited slip rear diff 
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02-09-2014, 04:38 AM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Ploofhead
but we all have different gear ratios, but yeah my truck is 03 4.0/410s and you'll be fine. The 4.0s can take 2500-3000 all day and love it
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Yeah, the SOHC is a screamer. Loves the RPMS.
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2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's| |
02-09-2014, 05:39 AM
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Ford Ranger Driver
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Join Date: Dec 2013
Posts: 1,609
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Quote:
Originally Posted by Ploofhead
but we all have different gear ratios, but yeah my truck is 03 4.0/410s and you'll be fine. The 4.0s can take 2500-3000 all day and love it
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Different gear ratios and different size tires
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Too much, look at my build thread
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02-09-2014, 11:13 AM
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Former Ford Migrane Owner
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Join Date: Jul 2012
Posts: 933
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Quote:
Originally Posted by 02fx4red
lol, no.
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fuck_that_yao_ming.jpg
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HAD a 99 Ranger 4X4 3.0 flex, but I did the AWD Wagon Mod....now I am a proud owner of a Subaru Impreza wagon
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