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Speed/Tach question [with Pic]

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Old Oct 2, 2012 | 01:03 AM
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From: Rio Rancho, NM
Question Speed/Tach question [with Pic]

So I'm just curious if this is about par for course:


I'm just wondering if that's the normal range for the 7.3 or if I have some weird gearing that I should look into.

It also seems to be why I get ~18 mpg highway.

Thanks.
 

Last edited by rohde1017; Oct 2, 2012 at 02:09 AM. Reason: title correction
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Old Oct 2, 2012 | 02:06 AM
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The picture is bad cause.. well I was doing something dumb. I do not condone driving and photo taking, at least if no one else is there to at least watch traffic for you. I must have taken 8-10 pics to have the sun, road changes, or my own camera issues screw them up.

I had to fix my sig after seeing this photo too. I would have sworn I was within ~500 miles of 290k, but clearly my memory was very off.
 
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Old Oct 2, 2012 | 02:12 AM
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Seems pretty close to the norm. Probably 3.73 gearing and 265's right?
 
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Old Oct 2, 2012 | 02:34 AM
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Its rear Axle A whatever that means. I had posted a pic of my door sticker previously, and it doesn't have a number on it.
The tires are 265s. I actually had to go look at my "stack of spares" in the next room. Its way to dark to see outside right now.
 
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Old Oct 2, 2012 | 05:00 AM
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That's normal... and shame on you for pixing and driving.

 
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Old Oct 2, 2012 | 12:20 PM
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Not only was it driving, it was into the sun, which gave the super fuz outline. So I should accept that if I want to keep it under 2k rpm its going to be ~68 mph for me.

Tugly, Did you have to clean your gauges at all? Where I'm at everything gets dusty I cleaned mine about 800 miles previous. I only know that cause its <200 miles to Albuquerque one way and its done 2 round trips.

And cause this has a turbo, Altitude shouldn't be a large player for/against mileage right? I only ask because I'm unsure of what is agreed upon as being "High Altitude" for the 7.3. I can drive to over 9000 ft in a 50 minute drive from my house to Sunspot, NM. The nearby sign (I need to get an image for profile pic) doesn't even show Sunspot for the Steep grade warning.
For a rough idea as to the altitudes I drive through regularly, the trip goes from ~4000 ft in Alamogordo to ~5300 ft in Carrizozo, to ~8000 ft in the mountains to ~4500 ft in Socorro to ~5000 ft in Albuquerque.
 
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