First Dyno Runs for the 2022 Bronco Raptor [Video]

[Raptor911]

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[Ducati1098]

Curious to know why it was run in 4th gear, and not 7th which is 1:1

 

[5280Bronco]

Curious to know why it was run in 4th gear, and not 7th which is 1:1

Now that's a great question.

 

[FellowM3]

Curious to know why it was run in 4th gear, and not 7th which is 1:1

You never d’uno in the high gear. You always dyno in 3rd or 4th gear. It’s where the usable power is.

7th gear you’d be at top speed of the car.

 

[Cetacean Sensation]

You never d’uno in the high gear. You always dyno in 3rd or 4th gear. It’s where the usable power is.

7th gear you’d be at top speed of the car.

You dyno in the 1:1 gear to get the most accurate BHP calculation. That's 3rd or 4th gear in a large number of 5 and 6 speed cars.

 

[MWILD]

Not too shabby. That’s more power and a little less torque than a JB4 (map 2) 93 tune 2.7. Not a perfect comparison, but still interesting.

Raptor

JB4 2.7 - 93 octane- Map 2

 

[Ducati1098]

You never d’uno in the high gear. You always dyno in 3rd or 4th gear. It’s where the usable power is.

7th gear you’d be at top speed of the car.

Like mentioned above, dyno runs should be performed in whatever gear is closest to 1:1 ratio. In the 10 speed that is 7th.

 

[Raptor911]

F150 Raptor dynos in 5th gear

 

[Ducati1098]

F150 Raptor dynos in 5th gear

That also has different gear ratios though.

 

[Raptor911]

Warthog >> 4.7
Raptor >> 4.1

Let me look for the trans gear ratio

That also has different gear ratios though.

 

[Ducati1098]

Warthog >> 4.7
Raptor >> 4.1

Exactly. Doesn't sound like much, but it is. Either way, after doing some calculations it seems like the Braptor would hit the speed limiter in any gear over 5th, so I guess that's why they don't run it in a 1:1 gear. Could have got better results than 4th gear though

 

[Deleted member 32220]

F150 Raptor dynos in 5th gear

All hope for the future is lost the f-150 raptor is 1:1 in 7th gear also. Specific cars don’t “dyno” in specific gears, they dyno them in their 1:1 gear. End of story.

 

[Ducati1098]

Let me look for the trans gear ratio

1st	4.71:1
2nd	2.99:1
3rd	2.14:1
4th	1.76:1
5th	1.52:1
6th	1.27:1
7th	1:1
8th	0.85:1
9th	0.68:1
10th	0.63:1
Reverse	4.88:1

So in 5th with a ratio of 1.52, rear gear ratio of 4.71, an RPM of 6K, and a tire diameter of exactly 37", it would hit 92.3 MPH

 

[computertom]

You're missing the point. If you were to take the F150 Raptor and run it in 7th gear, you'd hit the speed limiter at 4300RPM, which is well below the redline and peak HP. You're not going to get a full idle-to-redline chassis dyno run in a 1:1 gear unless you can figure out a way to defeat the PCM speed limiter.
Same for the Bronco Raptor; you'll still only be at 4500RPM when redline and peak HP come at 5400RPM.
It can't be done. End of story.

This! And trying to run these tires significantly above their limits is *likely not the best idea*.

I do agree that I’d expect the numbers to be higher, but they’re not surprising based on the results we’re seeing from the mags.

 

[Longshot]

They should run it again after it has some mileage on it and see if it changes much. Only 106 miles on the odometer, engine isn't even broken in yet... (Also I think he said it might have 87 in it too, probably do a bit better with 91 or higher?)

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