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Why do they have such a hard time deciding to put the 5.0 in?

Laminar

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Seriously though, I have been following the 7.3L closely as it is the closest true successor to the old 8.1L LS based engine.
The Vortec 8100? What about it was LS-based? It came from the big block architecture and shared its bore with the 454, along with bore spacing and bellhousing pattern. It had 18-bolt heads...do you think it was "LS-based" because it had symmetrical intake ports and the LS firing order?

and fuel economy is so good that I’m sure a lot of fleets will be reevaluating the need for diesel.
Fuel economy is not good. Towing or unloaded the GM 6.6 beats it by a significant margin. Note that it was pulling LESS weight than the Chevy and it has the 10 speed auto vs. only a 6 speed on the Chevy and the Chevy got 23% better mileage.

I get that its hp/tq ratings are sandbagged from the factory and Ford is leaving room for improvements throughout this engine's run, but I figured they'd go all out on efficiency from the get go if they were serious about this being a viable HD truck engine.
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SouthernBronco6g

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- my torque curve may be a little off because I used Ford estimated animated torque curve Vs dyno. (Which a torque converter may have something to do with the difference)

Either way 5star shows both stock engines Dyno at 300lbft by 2750 rpm. Yes the 5.0 makes more torque from 0-2750. But it marginal from 2250-2750.

Rock crawling sure that difference from 1250 to 2250 might be noticeable. (Which btw is WAY more than Jeep has) but aside from that every other major application where torque matters. It doesn’t matter.

And the tuning difference is massive
Your not ever going to convince V8 lovers. If dude don’t like it he can just buy a V8 Jeep ?‍♂ problem solved.
 

Laminar

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And all those things may be true, but can we put to bed why some of us would take even a tiny V-8, over even a tuned 2.7 ECO.
Holy cow you guys. Do you people not know what a torque converter does?



Watch this video and tell me how much time the engine spends below 2000rpm? Zero, zip, zilch, nada. The argument about idle-2000rpm power is applicable to a manual trans, but not to an auto. It literally matters zero.

I get it - two of my four cars have V8s, one of them has a V8 because I ripped out the 6cyl it came with and installed my own V8. I like V8s - they make great noises and they're lots of fun to drive. But we keeping focusing on narrower and narrower advantages of the V8 to the point where we're trying to hang our hat on some kind of "massive" advantage in an area where the engine never actually runs.

And yes - a tuned turbo engine will have a noticeable power gain where the turbos spool. But that's not what's being provided from the factory. So don't go posting a tuned power curve and try to complain about it.
 
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Zinn

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So lets see how weak the 5.0 really is in the low end.

So off idle, 5.0 slaughters 2.7. And even through 2000, it's not really even close. Finally by 2500 we get even and not until 2700 does the 2.7 out torque the 5.0. Huge spike for 2.7 between 2500 and 3000, but if anyone has been paying attention, that is exactly what us "linear power" guys don't want. 5.0 also gets you extended RPM range without switching gears @ over 5000 with still decent torque, in case you were trying to crawl an obsticle, but then needed a bunch of wheel speed on the higher end of RPM range.

So to recap, "what do you get"??

1. Ecoboost destroying off idle torque
2. Much better torque and more important, smoother up to 2700.
3. No big torque spikes.
4. No lag (especially on/off throttle @ ECO's torque peaks)
5. Even torque across entire RPM range
6. Extended upper RPM range, with still decent torque.

Oh BTW, this is really only close because Ford decided to use a small V-8.

Anyway, the arguments have been

1. It doesn't fit
2. Won't get as good mileage
3. Will be too expensive


And all those things may be true, but can we put to bed why some of us would take even a tiny V-8, over even a tuned 2.7 ECO.


RPM2019 2.7 93 TUNE-TORQUE (wheel)2019 5.0 93 TUNE-TORQUE (wheel)
120070 (Maybe, can't find dyno chart that low)161
1500100212
2000225294
2500325330
3000425348
3500425378
4000415400
4500400400
5000375395
6000275368
hehe you missed the part where the 5.0 revs to 7500 and sounds like a banshee :D
 

Big L 65

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I guess better longevity with the 5.0 over the 2.7 Ecoboost less plumbing and wastegate problems .
 

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I guess better longevity with the 5.0 over the 2.7 Ecoboost less plumbing and wastegate problems .
We're not sure how reliable the 5.0 is yet. It's only been on the market since 2011 or so, and that hasn't given many people time to get them over 4-500k miles. It still might turn out to be a dud. :p
 

FirstOnRaceDay

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We're not sure how reliable the 5.0 is yet. It's only been on the market since 2011 or so, and that hasn't given many people time to get them over 4-500k miles. It still might turn out to be a dud. :p
The new 5.0 has only been out since 2018 and the new 2021+ has cylinder deactivation in the f150. So no idea how good it is yet
 

NCOBX

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So lets see how weak the 5.0 really is in the low end.

So off idle, 5.0 slaughters 2.7. And even through 2000, it's not really even close. Finally by 2500 we get even and not until 2700 does the 2.7 out torque the 5.0. Huge spike for 2.7 between 2500 and 3000, but if anyone has been paying attention, that is exactly what us "linear power" guys don't want. 5.0 also gets you extended RPM range without switching gears @ over 5000 with still decent torque, in case you were trying to crawl an obsticle, but then needed a bunch of wheel speed on the higher end of RPM range.

So to recap, "what do you get"??

1. Ecoboost destroying off idle torque
2. Much better torque and more important, smoother up to 2700.
3. No big torque spikes.
4. No lag (especially on/off throttle @ ECO's torque peaks)
5. Even torque across entire RPM range
6. Extended upper RPM range, with still decent torque.

Oh BTW, this is really only close because Ford decided to use a small V-8.

Anyway, the arguments have been

1. It doesn't fit
2. Won't get as good mileage
3. Will be too expensive


And all those things may be true, but can we put to bed why some of us would take even a tiny V-8, over even a tuned 2.7 ECO.


RPM2019 2.7 93 TUNE-TORQUE (wheel)2019 5.0 93 TUNE-TORQUE (wheel)
120070 (Maybe, can't find dyno chart that low)161
1500100212
2000225294
2500325330
3000425348
3500425378
4000415400
4500400400
5000375395
6000275368
Exactly this.
 

OX1

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Your not ever going to convince V8 lovers. If dude don’t like it he can just buy a V8 Jeep ?‍♂ problem solved.
So start to convince me with examples of built, ecoboost rock crawlers. You guys could at least post up the rigs you have built/campaigned. Again, over 5K lbs, 40 or better tires, terrain similar to eastern PA. Otherwise, no point trying to convince someone of something they have zero experience with.
 

Nickp

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So start to convince me with examples of built, ecoboost rock crawlers. You guys could at least post up the rigs you have built/campaigned. Again, over 5K lbs, 40 or better tires, terrain similar to eastern PA. Otherwise, no point trying to convince someone of something they have zero experience with.
I mean there hasn’t really been one. Bronco is new territory in that regard. And the reason why is the same reason there aren’t rock crawlers with any other high performance engine that isn’t hemi or LS, it’s cost and availability. Crate ecoboost engines are hard to come by, and there isn’t any support for them. I do think that will change in the future.
 

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Laminar

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So start to convince me with examples of built, ecoboost rock crawlers. You guys could at least post up the rigs you have built/campaigned. Again, over 5K lbs, 40 or better tires, terrain similar to eastern PA. Otherwise, no point trying to convince someone of something they have zero experience with.
How much different is a good rock crawling engine from a good towing engine? Gobs of low end power, up top doesn't matter as much. Right?
 

gentlemanbronco

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Honestly, I think Ford decided up front, Hey we're going to beat jeep at their own game, and decided not to take the easy route of dropping a V8 in and calling it a day.
They decided we'll use similar engines to what Jeep offers so we can say ours our better still.
Now, with Jeep trolling Ford with the 392 ad the day the bronco was unveiled, I feel like Ford was simply waiting for the gauntlet to be thrown down to say "hold my beer"..

People keep preaching ecoboosts as some divine engineering masterpiece. It's a turbocharged inline 4 or v6... Nothing really revolutionary. Those type of engines have existed for ages.
It's all branding. The V8 is not dead, or being killed off. It still serves a purpose, has a support base.

Raptor/warthog/cleveranimalname version of bronco will get a V8 sooner rather than later.
I believe the final gen raptor truck will also get the godzilla engine as a final hurrah.
 

JimmyDean

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I really don't get all the desire for a 5.0 in this Bronco.

why settle?

7.3 Godzilla club all the way!!
 

OX1

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I mean there hasn’t really been one. Bronco is new territory in that regard. And the reason why is the same reason there aren’t rock crawlers with any other high performance engine that isn’t hemi or LS, it’s cost and availability. Crate ecoboost engines are hard to come by, and there isn’t any support for them. I do think that will change in the future.
Then how about you guys back off a bit on "what I don't need". Especially since the combo you are talking about has not been done, and most of you have not even built a rig like this, ever.

If they came out with a 2.7 with a roots blower, or electric turbocharger, That would be a bit more palatable. Still not ideal, as forced induction eventually brings issues that NA doesn't, but at least it could solve the linear power issue.
 

OX1

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I really don't get all the desire for a 5.0 in this Bronco.

why settle?

7.3 Godzilla club all the way!!
Agree and I doubt I would swap one in. But at least it can have big block, smog legal linear power with a roots on top of it, if put in from the factory. There is at least some shot a coyote could be put in. But if I swap my own in, it would either be a Godz or possibly even a 408W.
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