DYNO numbers

[USAF]

2015 A/T
Stock 342rwhp
Tune/JLT 384rwhp :shrug:


WTF am I missing here? Where is the 435? I understand that's crank HP but people have been making ever bit of 380rwhp stock.

Not a happy 15' owner

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[Of Wolf and Man]

It will depend on the Dyno that was used. A Mustang brand Dynos are notorious for reading significantly lower than others.

 

[Chargedguard5.0]

What kind of dyno? you also have a auto which dyno lower.

 

[comagt]

Dyno numbers are pretty much useless for comparison across the internets . The only thing that matters is how your own numbers compare(on the same dyno) as mods are done and/or tunes change. A better gauge of actual power would be track times, even that has variables but you cant fudge the clock.

Dyno numbers are dependent on how the operetor sets it up and they can influence the outcome heavily.

 

[USAF]

Mustang DYNO and that's what they said true number and it was 65*

 

[JimmyTwoTimes]

Dyno numbers are pretty much useless for comparison across the internets . The only thing that matters is how your own numbers compare(on the same dyno) as mods are done and/or tunes change. A better gauge of actual power would be track times, even that has variables but you cant fudge the clock.

Dyno numbers are dependent on how the operetor sets it up and they can influence the outcome heavily.

You can absolutely fudge the clock. It's called driver mod.

 

[comagt]

Wasnt clear on that, you cant fudge the measurement system at the track. The dynos measurement can be influenced.

 

[Mustang1260]

MUSTANG brand dynos read low
With an automatic tranny figure at least 20% drive train loss... which puts you into the 340s... your in the ballpark.

 

[mswift5]

You gained 42 rwhp with a tune a cai. Nice.

 

[USAF]

Yes that's impressive however my problem is what Ford puts out there at 435hp. Auto or not they list my car at 435hp. So I lost 93hp cause I'm auto ?

 

[JimmyTwoTimes]

Yes that's impressive however my problem is what Ford puts out there at 435hp. Auto or not they list my car at 435hp. So I lost 93hp cause I'm auto ?

The standard rule of thumb is that you can expect a standard parasitic drivetrain loss of 15% on a manual transmission car, and 20% on an automatic transmission car, although obviously that varies from car to car. A 15% loss would be 369 whp; a 20% loss would be 348 hp. So you're getting right around where you should be.

 

[IvanCRF]

Yes that's impressive however my problem is what Ford puts out there at 435hp. Auto or not they list my car at 435hp. So I lost 93hp cause I'm auto ?

Heck no. By the time it gets to the wheels where you measured it, a good portion of power is lost to friction by heat, sound etc. Autos will of course have a bit more frictional losses compared to a manual.

 

[USAF]

Just seeing post people making 380 stock 420 after the CAI/ tune doesn't sit well wit me

 

[comagt]

What gear did they dyno the car in? Gearing can also affect how hp is measured.

 

[USAF]

4th

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