How are powerboost HP/Torque figures calculated

[RocketFistMooga]

Does anyone know how the powerboost's claimed total output of 430 hp and 570 lb.-ft. of torque is calculated? Figures I have read indicate that the 3.5 ecoboost alone is around 395 horsepower and that the electric motor on its own is around 44 hp and 200+ lb.-ft. I could not find a good explanation anywhere online.

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[Bluesman]

There is a footnote in the brochure that says it is "calculated via combined performance of the engine and electric motor(s) with peak battery power. The calculations utilize SAE J1349 engine results and Ford electric motor dyno testing. Your results may vary". Emphasis upon the word "calculated", not necessarily measured...

https://www.sae.org/standards/development/about-saej1349-certified-power/

 

[Oxford_Powerboost]

Problem with adding numbers on top of each other is that the gas motor and electric motor achieve their peak numbers individually at different speeds/rpm, so the total system peak doesn’t necessarily reflect the combined individual peaks.

 

[thudnblunder]

Problem with adding numbers on top of each other is that the gas motor and electric motor achieve their peak numbers individually at different speeds/rpm, so the total system peak doesn’t necessarily reflect the combined individual peaks.

And that peak output won't be for very long because once the battery is discharged, part of the gas motor's output will go into recharging it.

 

[Bluesman]

Meaning it really is subjective, and how is it that the new Tundra I-Force Max numbers came in just above the PowerBoost?

 

[thudnblunder]

Meaning it really is subjective, and how is it that the new Tundra I-Force Max numbers came in just above the PowerBoost?

The Tundra doesn't have ProPower and is therefore irrelevant as a 2022 truck (to me!).

 

[b4hand]

Meaning it really is subjective, and how is it that the new Tundra I-Force Max numbers came in just above the PowerBoost?

Yet it is WAY slower

 

[Bluesman]

Interesting but probably not a consideration for most.

 

[Vspec]

A wheel dyno graph is probably the way to establish the comparison between the EB and the PB. It would however require but vehicle to be identically optioned (as much as it can be since the PB option adds a few things).

A better comparison would be to compare how both powertrain function. The electric motor in the transmission is able to provide its peak torque (minus what ever safety measure are in place not break the transmission) at any point in the RPM range of the gas engine, filling in any torque gap / dip. Many subjective drag races between an EB and PB have shown that the PB is little slow of the line (my guess is to minimize drivetrain shock of a launch) but once it gets moving it keeps "pulling" as the drivetrain is able to keep its peak efficiency in spite of the gear changes, not having to rely on the gas engine to provide peak torque. #notanengineer

 

[DBL R]

Another factor to consider is turbo lag. When accelerating in the PB the electric powertrain fills the initial lag of the turbo spool, I would expect this to make the PB feel more responsible vs EB. When completing a dyno pull or performance run it would be important to have the engine idle for at least 30-60 seconds before the run to insure the battery has sufficient charge to aid in acceleration.

 

[JJSnell]

Problem with adding numbers on top of each other is that the gas motor and electric motor achieve their peak numbers individually at different speeds/rpm, so the total system peak doesn’t necessarily reflect the combined individual peaks.

But, but, but, Edel'broke' said if I bolt on their 4v, I will instantly get 50more HP and if I swap mufflers Ill get another 25 instantly!!
I think if I rotote my tires, Ill get another 100hp!

 

[Fox146]

Livernois and a couple of others have dyno’d PB’s so some numbers are out there .

 

[HammaMan]

Does anyone know how the powerboost's claimed total output of 430 hp and 570 lb.-ft. of torque is calculated? Figures I have read indicate that the 3.5 ecoboost alone is around 395 horsepower and that the electric motor on its own is around 44 hp and 200+ lb.-ft. I could not find a good explanation anywhere online.

The PB pulls away from a raptor every single time so the numbers are in-fact de-rated.

The raptor is claimed to have more power. It also has 4.10 gears vs the PB's 3.73s. That should be enough with claimed power numbers for the raptor to hang or pull away. As speed increases the PB keeps on pulling. The PB puts down higher power on the dyno indicating ford is sandbagging the numbers. With a 93 tune on my powerboost, I'm matching the ER lightning and beating the SR lightning. I exceed 1g of acceleration on launch. The lightning on the other hand pulls pretty consistent .6-.7 Gs. I need to pull out the few hundred pounds of normal weight I have onboard and put the factory tires back on to get better results. 0-60 should be in the high 3s.

No mods, completely stock engine with a pump gas tune.

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