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Old 07-07-2015, 03:30 PM   #21
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What bright engineer builds a highway with a 12 - 14% grade???? What an idiot....


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Old 07-07-2015, 03:39 PM   #22
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Bingo. That's that bad boy. We made it up all 33000 lbs(plus) but only barely. I was looking for stuff to toss out the door to lighten the load. Going up was tough but we will not be going down that way.
Next time drop the toad ahead of time. I have done 13% with my old 2000 Ducth Star gasser without the slightest problem (pretty sprightly actually) once I dropped the car. Before I dropped the car the hammer was on the floor and was standing still!!

If you got the 7710 you should be able to know of those steep inclines in advance.

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Old 07-07-2015, 03:48 PM   #23
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Sometimes you have to accept what you get and this sounds like one of them. The road out of Skagway Alaska has an 11% grade in some portions. For me it was a 1st gear going down and 2nd gear going up. I was more concerned going down than going up since gravity was against me going down.
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Old 07-07-2015, 03:50 PM   #24
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We were far from any highway. I was surprised that the 7710 didn't warn me before we got started up. We had no idea it was so steep. We turned and there it was steep and long. We had ten cars behind us and no shoulder.
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Old 07-07-2015, 06:26 PM   #25
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Phil
I did what you did in 2012 while out west. I went up a long 10% grade and was down to 20 mph with my 340hp. A GPS with grade info. would be great, but I do not have one. Instead, I bought the Mountain Directory.

Mountain Driving Guide for Truckers, RV and Motorhome Drivers

I also have Allstays Camp and RV, and also Allstays Truck and Travel apps on my I-Pad. These apps give grades, Walmarts, fuel locations and a lot more. The Mountain directory says that the steepest grades are in the East.

Will be interested in anything that you find out about the engine chip mod.
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Old 07-07-2015, 07:01 PM   #26
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I would find that lack of power totally unacceptable. I guess that's why I owned 3 diesel pushers over the years!! Hope you can do some HP/torque improvements to make your RV a bit more user friendly!
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Old 07-07-2015, 07:26 PM   #27
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I got stuck on a 14% grade in Utah a few years back. Had no issues at all going up or down and I was also towing a car. Took it slow of course. Here in Colorado when we go to the mountains we hit 6-7% grades all the time.

From our trip to Utah.

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Old 07-07-2015, 07:40 PM   #28
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Where is this in Utah? The 13% I mentioned earlier was up at 10K feet near Cedar Breaks National Monument.

And the steepest grade I found in my semi driving career was right around State College, PA. Had to drop all the way down to 6th gear and out here in the West, I was never lower than 8th.

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Old 07-07-2015, 07:45 PM   #29
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Escalate UT. Highway 12.


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Old 07-07-2015, 07:49 PM   #30
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Escalate UT. Highway 12.


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Ah, good ol' UT 12.....

I like the part on the narrow "backbone" that is just wide enough for 2 lanes and a narrow safety lane on each side. And then it's at least 1000 feet straight down on BOTH sides.

Gives a whole new meaning to the term "pucker factor", don't it?? White knuckle grip on the wheel!!!

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