4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

GT DYNO Results

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Old 09-18-2005, 04:57 AM
  #11  
IWinULose
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Default RE: GT DYNO Results

So with all of this: Accufab 70mm TB, BBK T.B. & Intake Spacer, FRPP Shorty Headers, Custom X-pipe, Magnaflow Hi Flow Cats, Flowmaster 2 Chamber made 238 rwhp. If a stock GT puts down 225ish, you have close to a thousand dollars in 13 horsepower. Something doesn't seem right to me there. Call me puzzled.
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Old 09-18-2005, 12:48 PM
  #12  
JD1969
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Default RE: GT DYNO Results


ORIGINAL: Dave2000GT


ORIGINAL: red2k1gt

Im still baffled as to why gears give you a lower HP read out? Can anyone explain it?
More loss through extra gear-tooth contact.
This and as sombody eles mentioned the 1:1 ratio is off as well.
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Old 09-18-2005, 03:44 PM
  #13  
racer02GTstang
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Default RE: GT DYNO Results

also stock is on a dynojet i think and this was a mustang dyno....

the shorties didnt do anything, may have made the power curve alittle different but no gain in power.
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Old 09-18-2005, 08:35 PM
  #14  
ZW99GT
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Default RE: GT DYNO Results


ORIGINAL: IWinULose

So with all of this: Accufab 70mm TB, BBK T.B. & Intake Spacer, FRPP Shorty Headers, Custom X-pipe, Magnaflow Hi Flow Cats, Flowmaster 2 Chamber made 238 rwhp. If a stock GT puts down 225ish, you have close to a thousand dollars in 13 horsepower. Something doesn't seem right to me there. Call me puzzled.

I will explain this unbelieveable phenomonon one more time

This guy who ran the shop has a Phd in engineering. He's been working on Ferrari's for years and has owned a dynojet and a mustang dyno. He says 7-8% difference depending on the car. If u take 7% of 238.6 thats 19.xxx. 238+19=257. Which is right where i need to be.


Maybe this makes more sense! Mustang dyno is 7-10% lower than dynojet!
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Old 09-18-2005, 10:32 PM
  #15  
eZ
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Default RE: GT DYNO Results

i thought stock gt's put out 260...
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Old 09-18-2005, 10:35 PM
  #16  
racer02GTstang
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Default RE: GT DYNO Results


ORIGINAL: eZ

i thought stock gt's put out 260...

thats at the crank.......

so pretty much.... i think he will have about 280 at the crank (according to the mustang dyno of course)
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Old 09-19-2005, 03:00 AM
  #17  
ZW99GT
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Default RE: GT DYNO Results


ORIGINAL: eZ

i thought stock gt's put out 260...
Why do people refuse to read or understand whats goin on here. Damn
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