GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Do these numbers sound right?

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Old May 13, 2005 | 08:34 PM
  #1  
billvis's Avatar
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Max torque: 346@3859RPM
Max HP: 277.2@4753

I understand why my HP would be lower than the listed 300, but it's higher than what I saw from other people posting their baselines. Also, Ford lists the max torque at 325.
I've got 5500 miles on my 05 GT, now. Temp was 62.7 F.

FYI,
I got my Magnaflows put on afterward, and I'm gettting my Steeda CAI with SCT Xcalibrator this weekend. What kind of improvement should I get?
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Old May 13, 2005 | 09:31 PM
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From information provided by 169stang, the reason your seeing such high HP numbers could have to do w/ the following:

"I've also learned that there is different kinds of horsepower that can be shown. If you look at my dyno chart in the left column, it shows SAE HP (chart on right). SAE HP is what most magazines show for testing. STD Hp will show higher numbers. On STD hp, my car showed to be 320.5rwhp/334.9rwtq (chart on left)."

Check your DYNO Charts and see what HP your listing. Also w/ the mods you have planned expect to see between 17 and 25 RWHP IMO. Thanks

David
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Old May 13, 2005 | 09:52 PM
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[quote=billvis,May 13, 2005, 7:37 PM]
Max torque: 346@3859RPM
Max HP: 277.2@4753

I understand why my HP would be lower than the listed 300, but it's higher than what I saw from other people posting their baselines. Also, Ford lists the max torque at 325.
I've got 5500 miles on my 05 GT, now. Temp was 62.7 F.

Is your car a manual? What kind (make) of dyno did they use?



Paul
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Old May 13, 2005 | 11:51 PM
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346rwtq? Arent the people with heavy mods seeing shy of that mark?
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Old May 15, 2005 | 11:40 AM
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[quote=wild stray,May 13, 2005, 9:55 PM]
Originally Posted by billvis,May 13, 2005, 7:37 PM
Max torque: 346@3859RPM
Max HP: 277.2@4753

I understand why my HP would be lower than the listed 300, but it's higher than what I saw from other people posting their baselines. Also, Ford lists the max torque at 325.
I've got 5500 miles on my 05 GT, now. Temp was 62.7 F.

Is your car a manual? What kind (make) of dyno did they use?
Paul
Yeah, it's a 5-spd. I had it done at JBA racing here in San Diego. The chart calls it a "Dyno Dynamics Dynamometer". It doesn't say if it's SAE HP or SP HP.
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Old May 15, 2005 | 11:42 AM
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Originally posted by Fazm@May 13, 2005, 11:54 PM
346rwtq? Arent the people with heavy mods seeing shy of that mark?
I know that's why I was kind of curious if the numbers were off. If it makes any difference, I'm running 91 Octane.
Maybe, I lucked out and got a "special" Mustang.
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Old May 15, 2005 | 12:02 PM
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How many dyno pulls did you do? Occasionally (not often though) dyno's through out very incorrect numbers. If you have only done 1 pull, id suggest you go back and do at least 3.
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Old May 15, 2005 | 12:07 PM
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I think someone posted that the Dyno Dynamics was high about 7% over a Dyno Jet.....but the torque numbers would still be pretty high even adding the seven percent.
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Old May 17, 2005 | 11:24 AM
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what gear did you pull in?
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Old May 18, 2005 | 10:14 PM
  #10  
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Originally posted by wild stray@May 15, 2005, 10:10 AM
I think someone posted that the Dyno Dynamics was high about 7% over a Dyno Jet.....but the torque numbers would still be pretty high even adding the seven percent.
That was me. My Dynamics numbers are here: http://forums.bradbarnett.net/index....T&f=43&t=21996
and my Dynojet results are on page 2.

My max torque on the Dynamics was only 304 versus 288 on the Dynojet.
Something's amiss with 346 torque I think

277 HP agrees with my 285 with Bassani axlebacks on.
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