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Old 01-21-2020, 09:56 PM   #1
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Looks like the new 7.3 V-8 gets the same mpg as the V-10

No need to upgrade to a newer F-53 chassis for the V-8 cause the mpg still sucks..

5.5 to 6.1 mpg while pulling a load.


https://youtu.be/qbXFrZsiAQE


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Old 01-22-2020, 12:01 AM   #2
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I will keep my bulletproof v10 in my class c
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Old 01-22-2020, 10:10 AM   #3
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From this side of the street, looks like the only solution is to put smaller gas tanks in those vehicles. That way it cost less to fill up. JMHO.
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Old 01-22-2020, 11:25 AM   #4
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No big surprise here. You can only push the efficiency of an engine so far and that is all. You would not expect to have more power and use less fuel.

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Old 01-22-2020, 01:13 PM   #5
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They did mention wind, should have tested both on the same day and same conditions.
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Old 01-22-2020, 01:14 PM   #6
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No big surprise here. You can only push the efficiency of an engine so far and that is all. You would not expect to have more power and use less fuel.

Ken
In order to do that you Must install the

Turbo3000D VADA
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Old 01-22-2020, 05:10 PM   #7
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No big surprise here. You can only push the efficiency of an engine so far and that is all. You would not expect to have more power and use less fuel.
Over 40 years ago, researcher found that the #1 thing that affects fuel economy is weight !
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Old 01-22-2020, 05:51 PM   #8
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No need to upgrade to a newer F-53 chassis for the V-8 cause the mpg still sucks..

5.5 to 6.1 mpg while pulling a load.
Unless you want/need more power. Using that power would bring the MPG down even more though.
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Old 01-22-2020, 05:57 PM   #9
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They did mention wind, should have tested both on the same day and same conditions.
I think they went out and back to the same gas station. Wind over 66 miles round trip wouldn't change enough for this test to be tainted by wind.

Hopefully they will test both on the same day sometime, but the numbers (without comparing to anything else) speak for themselves.
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Old 01-22-2020, 05:58 PM   #10
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No big surprise here. You can only push the efficiency of an engine so far and that is all. You would not expect to have more power and use less fuel.
In the end, it is pushing a couple of big boxes that weigh whatever through the air. Within reason, engine size won't change fuel economy too much in this regard.
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Old 01-23-2020, 09:56 AM   #11
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I don't understand why they don't turbo a smaller motor for these, it doesn't take a huge amount of HP to keeps these rolling when the roads are fairly level
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Old 01-23-2020, 07:25 PM   #12
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Basic laws of physics. You can't get anything for nothing. It takes so much energy to propel a vehicle down the road whether you use a 4 cylinder turbocharged wheezer, or a huge V-12 motor. Your results may vary. I would stick with the proven V-10 engine.
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Old 01-23-2020, 08:02 PM   #13
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Originally Posted by jackreno View Post
No need to upgrade to a newer F-53 chassis for the V-8 cause the mpg still sucks..

5.5 to 6.1 mpg while pulling a load.


https://youtu.be/qbXFrZsiAQE


5.5 to 6.1 is an 11% increase. Agree it still sucks though.
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Old 01-23-2020, 09:10 PM   #14
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I will keep my bulletproof v10 in my class c
My thoughts exactly, no advantage to the upgrade when the only thing you are likely to buy is a problem you don't know about yet. V10 does a pretty good job overall and if reliable for the most part.

Turbos on smaller engines are a big repair bill just looking for a place to occur IMO, and thanks to the Federal Government, even diesels are a pain in the neck or the lower regions now.

I bought my RV for the wife and I to relax and enjoy, not worry about when it's going to break down next. We both would like a newer model but my old one looks better and better all the time.
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