NEW HORSEPOWER / TORQUE SPECS for 2021 Bronco 2.3L and 2.7L

[Norm A.]

Regular around town, Premium when I go out and hit the dunes and trails with my jeep buddies

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[The Bronze]

Octane is literally the thing that prevents engine knock. So Higher Octane = More goodness

Actually you have it backwards. The engine is tuned to use the higher fuel, and the active knock sensors pull power via retard when lower octane is used to avoid detonation

That aside, Those are some sweet ass numbers.

Ford is one of the few manufacturers that will increase ignition timing if it doesn’t sense detonation. The Octane Adjustment Ratio Strategy (OAR) uses a variety of inputs and tables to monitor knock short and long term and then increase or decrease ignition timing based on factors such as load, RPM, borderline spark tables and maximum spark tables. You actually get positive and negative spark adjustments, unlike most other makes.

 

[B Wants A Bronco]

Hp/torque will be the same with top tier or non-top tier, there’s only extra amounts of detergent in top tier. If you’re getting the 2.3L, I’d only put top tier in it since there isn’t the extra port injection to wash out the valves (2.3L is direct injection only and the 2.7L is direct and port injection). Id think the 2.7L would get by fine without much carbon build up with every other tank being non-top tier. Im getting a 2.7L and plan on putting mostly 87 top tier in it, but occasional 93 Sam’s club for spirited driving tanks ($2.29 for 87 Sam’s club, $2.45 for 87 top tier, $2.59 for 93 Sam’s club, but $3.05 for 93 top tier currently in my area). Sam’s club is non-top tier just FYI.

Well said! I'm not an expert on gasoline, but my dad did work for Conoco for 20 years (retired in 2002), so I know more than most lol. I do wonder how much Top Tier helps a direct injection only motor though, since I would think very little fuel is making it to the tops of the valves anyway.

Oh well, no matter, I use Top Tier every time in every car, every fill up, maybe not necessary but we all have our quirks lol.

 

[swampgoat]

Im just thrilled it make more horse power then my 95 bronco did with a stock 5 Liter

 

[Bronco Pilot]

If only it had a 5.0. :-(

This will be my first ecoboost. I hope I’m not disappointed.

 

[Ryuk]

Ford is one of the few manufacturers that will increase ignition timing if it doesn’t sense detonation. The Octane Adjustment Ratio Strategy (OAR) uses a variety of inputs and tables to monitor knock short and long term and then increase or decrease ignition timing based on factors such as load, RPM, borderline spark tables and maximum spark tables. You actually get positive and negative spark adjustments, unlike most other makes.

Interesting. My tuning is limited to GM so I was not aware of this.
Thanks for sharing!

 

[Efthreeoh]

Unless the EPA has it's way... They've been raiding tune shops that sell defeat emission devices. Just a matter of time until they completely kill tunes.

I call BS. Once the vehicle is sold, it is the owner's responsibility to keep his vehicle within emission spec. In the county where I live there is no emissions inspection requirement. It would be illegal for a Federal Agency to "raid" a "tuning" shop in a State county locale that doesn't require emissions testing.

 

[Efthreeoh]

I’ve used premium only for 7 years now.
The improved performance aside, I’ve consistently gotten a mile (or more) per gallon more every time I do an 89 to 93 comparison.
So the added cost is almost exactly balanced by my calculation. So the net gain is probably better performance.
Clock every single tank too; not the old guesstimate like every single buddy of mine that drives a solid axle Tacoma that swears they get “25 or 30 mpg” every tank when they’ve never actually calculated it accurately even

(It’s below 19, all you sfa 22re taco’s)

My .02

Of the several cars I own, all but one require high octane fuel. I've never run lower-octane fuel in any of them. But like you, I track every tank of gas MPG. I keep a log book in the car and record every fill. I've done this for every car I've owned for over 30 years.

When one evaluates such data, there are statistical variations in the data based on weather, traffic conditions, state of engine tune, fuel quality, and operator use variations (just to name a few). My daily driver that I use 99% for commuting to my office, which has multiple hundreds of thousands of miles on it, shows well over a 1 MPG deviation between tank fill ups. My data from the car mentioned, which drives a consistent route and is fueled at the same fuel pump at either one of just two gas stations (a Shell or an Exxon). So as real-world test data is low in variable of inconsistency. I would think it would take many tanks of each fuel to see any correlation between fuel grade and MPG delta. Lab testing is really the only true way to discern a correlation in my opinion. Logic and laws of chemistry would dictate that higher engine power output comes at the cost of higher fuel consumption for the same engine. Computer controlled forced induction probably helps somewhat, but I'm of the opinion, higher octane is not going to improve horsepower output and improve fuel consumption.

It's an interesting question for sure.

 

[Gamecock]

Hey, I said I had no problem whatsoever with tuning to increase power. But I draw a hard line when your tune increases emissions. America is a free country, but you have absolutely no right to harm the health of your fellow citizens.

One of the most ridiculous things I’ve read on here. That or the post claiming someone else’s daughter’s asthma is affected by someone adding a tune...anyway, the net result of every tune that’s ever been done in the history of the US has ZERO effect on anyone’s health. None. So small an effect that it’s not measurable in any way whatsoever.

 

[Frank N]

330HP/415TQ....that's cute. lol

 

[Efthreeoh]

Not necessarily, there are good companies that know how to tune engines and still stay within the bounds of what the various emissions controls want. There are also a lot of companies that just crank up the boost, adjust the fuel maps to match and then turn off the rear O2 sensor and call it done. The second category are the ones that EPA is after.

Also, wonder if these are crank numbers, or wheel numbers. (probably crank) Because crank numbers are useless, it's a bit like measuring one's dick from behind the balls. Sure, it's there, but you ain't using it. :-D

It's at the crankshaft per SAE test specs.

 

[Lilj4425]

330HP/415TQ....that's cute. lol

Yeah, my Cummins turbo diesel Ram 2500 runs circles around that sadly.

 

[da_jokker]

This must be nice. Here in California, we get 3 choices... 87, 89, 91

Good news is that Costco's 91 is typically cheaper than others 89. So I do Premium by default and save the 87 for the long road trips.

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