Ford 7.3L Gas Engine

/ Ford 7.3L Gas Engine #243  
I've viewed their video's before. I think they have a good scoring system that's equally fair to whatever vehicle they are testing. Enjoyed this video.
 
/ Ford 7.3L Gas Engine #244  
Going down the Ike, it only had 1 less brake applications than the chevy, not good considering that it has the 10sp and 4.3:1 rear. Going up it did much better using the trans and diff. gears. It did burn a slight more fuel at 2.2mpg for the trip. Lots of truck but man these new ones co$t the money.

The 6.6 Chevy had a 3.73 rear and still uses the 6sp. I think the extra displacement, 10sp, and 4.3 rear helped the F250 going up.

Can This Gas-Powered 2;) Chevy Silverado HD Keep Up With a Diesel? Ike Gauntlet Towing Review (Video) - The Fast Lane Truck
 
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/ Ford 7.3L Gas Engine #245  
I had just finished watching that too... Very impressive! Killed the Chevy 6.6 Gasser
and burned fair amount more gas doing it.

1mpg more, that's a lot percentage wise.
 
/ Ford 7.3L Gas Engine #246  
Going down the Ike, it only had 1 less brake applications than the chevy, not good considering that it has the 10sp and 4.3:1 rear. Going up it did much better using the trans and diff. gears. It did burn a slight more fuel at 2.2mpg for the trip. Lots of truck but man these new ones co$t the money.

The 6.6 Chevy had a 3.73 rear and still uses the 6sp. I think the extra displacement, 10sp, and 4.3 rear helped the F250 going up.

Can This Gas-Powered 22 Chevy Silverado HD Keep Up With a Diesel? Ike Gauntlet Towing Review (Video) - The Fast Lane Truck

If MPG matters then the test needs to be repeated at comparable speeds. The F-250 went up the hill faster and should be no surprise that more fuel was consumed.

As for axle ratio and transmission gears, was the Chevrolet not able to shift to attain appropriate RPM to pull the load? I would hope Ford uses a 10 speed for real benefit not just marketing "my numbers are bigger than yours." But who knows?
 
/ Ford 7.3L Gas Engine #247  
I have not seen a whole lot about MPG on normal driving with the 7.3
 
/ Ford 7.3L Gas Engine #248  
I have not seen a whole lot about MPG on normal driving with the 7.3

Agreed so far there have really only been posts about empty cruising freeway mpg (14.5 to 15.5 so far which is decently promising relative to the large engine displacement size).

Towing mpg so far I have only seen 2 towing reports and one was TFL at less than 5.9 mpg towing a near max heavy and boxy trailer and there is another video that I found once (but can not seem to find it again) where a guy is towing a not really heavy but it is a boxy trailer and while he does not really talk about mpg at all he does flash his camera on the instrument panel for other gauge reasons and the mpg readout shows 5.6 mpg.

I will wait for some vehicles to show up on fuelly.com to get a true picture of overall fuel mpg. I am realistic and expect something slightly better than what the ole Ford v10 averaged say 10% and that is about it. Which 10% does not sound like much improvement but this engine has more hp and torque also.
 
/ Ford 7.3L Gas Engine #249  
I'm far more interested in it's downhill performance than it's uphill performance. I think to a point, folks get way too wrapped up in the "how fast can I climb this hill?" scenario. It's the downhill "fast" that can get you killed, not the uphill "fast". I've scraped way too many truck/trailer combos off the sides of canyon walls, and winched them out of deep gorges, that went down a hill too fast. I was a medium and heavy duty recovery wrecker operator in AZ for a few years. We had one of the AZDOT contracts for recovery work. Been called out to some bad ones.

They didn't go into much detail on HOW they set up the truck during the downhill portion. They said they were in Tow/Haul, ok great. But were they just relying on the cruise control, or? And 9 or 10 brake applications over 8 miles of 7% doesn't sound too bad to me, considering how heavy they were loaded. If they were to manually pull it down into a lower gear at the top, and let her buck in that gear, it may have changed the outcome a bit (for any of the test trucks). But I'm always leery of guys that just let the "truck computer" drive the truck down the hill. But I'm mostly just interested in more detail on how that part of the truck is set up (and how they operated it).

New trucks are certainly expensive. They also seem to only want to "test" the highest option and trim level trucks, with all the extra gizmos. And with list prices hitting $70K-80K plus, for some of these lux-O-cruisers, it seems pretty ridiculous to me. Leather wrapped and heated steering wheels are not going to make the truck pull better. Neither will sun/moon roof cabs.

So I thought the "objective" portion of their tests were interesting. But their "subjective" portion belongs in an issue of Car & Driver Magazine.

At least they're trying to use identical loads and conditions in their comparison tests now. That is a big improvement in objective testing.
 
/ Ford 7.3L Gas Engine #251  
If MPG matters then the test needs to be repeated at comparable speeds. The F-250 went up the hill faster and should be no surprise that more fuel was consumed.

If you watch the videos, you will see that most times, the trucks were FLOORED going on the uphill portion while trying to maintain a given speed. They did not choose to drive one slower than the other. It is a timed event to climb 8 miles with 16k hooked to the truck and they abide to a max MPH speed. If a truck has a slower time, it struggled more to maintain speed on the steep sections. Have you ever been on the Ike? It can be very tough for loaded trucks.
 
/ Ford 7.3L Gas Engine #252  
I've pulled my 12K pound 5th wheel up the Ike with my '12 F-250 and 6.2 gas with the 3.73 gears...

Yeah, you know you're on a hill alright. Long uphill grade + high elevation = working it pretty hard.
 
/ Ford 7.3L Gas Engine #253  
I didn't consider the F250 a high level trim truck at all.

I thought the downhill portion might favor the GM with less gears. Bigger split would result in more resistance to overspeed when it shifted down??
 
/ Ford 7.3L Gas Engine #254  
I didn't consider the F250 a high level trim truck at all.

I thought the downhill portion might favor the GM with less gears. Bigger split would result in more resistance to overspeed when it shifted down??

The truck they used was a Lariat edition. That's just one step below the highest, which I believe is still the Platinum.
 
/ Ford 7.3L Gas Engine #255  
/ Ford 7.3L Gas Engine #256  
Wrong truck.

That was a different truck.

Did you happen to notice it was a different color?

:laughing:
 
/ Ford 7.3L Gas Engine #258  
Wrong truck.

That was a different truck.

Did you happen to notice it was a different color?

:laughing:

:laughing:Ha...that's funny....you're right. I also see they didn't have the sound meter with them with the 7.3....:mad:
 
/ Ford 7.3L Gas Engine #259  
ruffdog,

Yeah, I noticed they forgot the sound meter.

I also don't know why they bought 2 of the 7.3 trucks. The grey(?) one is supposed to be their new "long term project" truck? I guess they're going to do a bunch of aftermarket mods to it? Ok, fine. But they could have run the Ike test with it while stock? Instead of buying a whole second 7.3 truck? Maybe the blue one they used for the Ike challenge wasn't purchased, and just borrowed for the test?
 
/ Ford 7.3L Gas Engine #260  
ruffdog,

Yeah, I noticed they forgot the sound meter.

I also don't know why they bought 2 of the 7.3 trucks. The grey(?) one is supposed to be their new "long term project" truck? I guess they're going to do a bunch of aftermarket mods to it? Ok, fine. But they could have run the Ike test with it while stock? Instead of buying a whole second 7.3 truck? Maybe the blue one they used for the Ike challenge wasn't purchased, and just borrowed for the test?

Maybe the blue one has some miles on it (factory demo) before running the Ike.:confused3:
 
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