New Bronco Seems To Confirm What We Suspected

[Dr. Zaius]

That the 2.3 EB makes around 300HP on premium.

Bronco HP and Tq Figures Released

So the 2.3 is 270/310 on 87 and 300/325 on premium.

The 2.7 is 300/400 on 87 and 325/415 on premium.

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[AzScorpion]

I saw this last week on the Bronco forum. Running premium will get you 25 hp and 90 tq. with the 2.3 which is pretty impressive. Funny because so many on there "think" the 2.3 won't be enough power for their mall crawlers. lol

 

[Fawnbuster]

I saw this last week on the Bronco forum. Running premium will get you 25 hp and 90 tq. with the 2.3 which is pretty impressive. Funny because so many on there "think" the 2.3 won't be enough power for their mall crawlers. lol

I've been running premium since last summer and even with the Rousch tune and not changing my driving habits I am still getting 19.5mpg in town, beats my F150s 14.5 mpg I traded
yes it nose dived when I towed last fall (pre tune) but it still runs like a striped ape when I need it to.

 

[Samsquanch]

I saw that and wondered if the tune on the bronco would be slightly different?

 

[CB750F]

we arent going down the octane and more power route again are we?

Yes, I think it's required.

 

[AzScorpion]

we arent going down the octane and more power route again are we?

This was straight from Ford.

ENGINES	2.3L ECOBOOST	2.7L ECOBOOST
SAE horsepower	300* (275 regular fuel)	330* (315 regular fuel)
SAE torque	325* (315 regular fuel)	415* (410 regular fuel)

* figure using premium fuel

 

[WhyNot21]

we arent going down the octane and more power route again are we?

If they really did tune the engine to make use of it, you would probably see it advertised. Mazda does that with the CX-5 2.5T, which my wife drives. The benefit of running 93, vs 87 is only achieved above 4k RPM. (see chart)

We have run both over the two years she's owned it. Since we don't take it to the track, 87 is what we use.

 

[AzScorpion]

unless the tune changed, we all know octane ratings dont give us imaginary power increases.

I'm not sure if Ford tweaked anything in the 2.3? I had no interest in reading through the whole thread but if you want to here it is.


https://www.bronco6g.com/forum/thre...ue-specs-for-2021-bronco-2-3l-and-2-7l.16405/

 

[jmurph]

just means the ranger engines are super undertuned as most trucks are

 

[OFC Ranger]

I just always assumed 93 premium was a cleaner burning fuel or something along those lines. Everything runs better when cleaner.

Machines, guns, dildos, whatever.

 

[Dr. Zaius]

Octane is a measure of resistance to detonation.

Higher octane fuel burns slower, allowing the timing to be advanced.

As the piston is coming up on the compression stroke, if you can ignite the fuel earlier you'll get a more efficient burn of the fuel/air mix. Ignite it too soon and the ignition will try to push the piston back down before the power stroke begins (knock).

With all the ECU controls on a modern engine, it's not difficult at all to think that the engine may watch the knock sensors and advance timing until it just starts to experience knock and then back off the timing, if for no reason other than to enhance overall performance and efficiency.

Almost all ECUs will back off timing if they see knock and all engines will knock at some point regardless of tune just due to everyday irregularities(bad gas, weather conditions, etc.).

Would you notice the increased HP, probably not. Based on most stock dyno runs the Ranger is making more than the advertised 270 anyway so a nudge to 300 would likely be imperceptible. I think Ford PR still remembers the whole 1999 Mustang Cobra HP rating fiasco and has sworn that the number advertised is the minimum number you'll see.

Add that it would take several tanks of fuel for the ECU to adjust and it's going to be such a gradual process that it would go unnoticed.

TL/DR: Ford's EB engines likely will give you a bit more power on premium, but whether the amount is noticeable enough to justify the extra 60 cents per gallon (in my area) is up for debate.

 

[AzScorpion]

well, i read it all. sigh. self abuse and torture at its finest.
i have to admit i teared up reading about the little girl with asthma though. touching story.

only a few guys eluded to a tune as being the reason for the power increase, the need for higher octane is the result of that tune. A few others also made note that octane doesnt increase power, which is the camp i am from.
it amazes me though how many people are in the camp that a few extra dollars at a fill up can get you free horsepower.
I dont buy it. I dont think the software for the ECU is that advanced yet where it can sniff your fuel tank and go...hmmm, thats the high octane go go juice, we can tweak the parameters and give this guy some serious striped ape performance and dial it down later when he puts in the lesser octane.
maybe its a bigger turbo?

its all in your head people. your ass dyno isnt accurate enough for me to be convinced a fill up on high octane fuel turned your truck into something more powerful.

You're a better man than I am! I usually can only make it through the first page over there before the BS meter kicks in or the subject is already WAY off topic. People here think this site goes off topic, you outta spend a day over there! lol

Seeing as there are no production models in anyones hands yet I guess we'll have to wait and see if/what Ford changed on these 2.3's if anything. I'll admit I don't know enough about turbos ( this is my first one) or even the newer motors now a days. I quit working on vehicles years ago when changing the oil became a chore on some. Maybe if I kept mine for 100,000+ miles I'd care more but they're usually gone within 3 years. If I decide to keep one longer at some point I'll buy the extended warranty and call it a day.

 

[FoD]

unless the tune changed, we all know octane ratings dont give us imaginary power increases.

Only having a TGD is capable of that

 

[tivct]

I dont think the software for the ECU is that advanced yet where it can sniff your fuel tank and go...hmmm, thats the high octane go go juice, we can tweak the parameters

This software has been around for decades. Knock sensors measure where detonation starts occurring (ignition borderline). From this, it will infer the octane content in the fuel tank. From there, Ford's software will change both ignition timing (higher octane provides borderline relief) & load/boost limits (more advanced timing prevents high load pre-ignition, allowing higher boost). This is well known if you talk to the right people (i.e. not rando's on the forums.) Of course, I'm a rando on the forums, so take it with a grain of salt, as you should

I'm not going to pull the "I do this for a living" card. If you know what I mean...

 

[FloggingBishop]

I just always assumed 93 premium was a cleaner burning fuel or something along those lines. Everything runs better when cleaner.

Machines, guns, dildos, whatever.

Ever seen a LiOn BOB? Knocks the bejesus out of ya and ensures you’re going it alone most nights...

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