HP numbers 99-04

tording92lxnotch · April 15th, 2007, 01:59 PM

What kind of power are GT's from 99-04 making with minor bolt ons like exhaust and cold air and stuff like that? I am looking for wheel horsepower like from a dyno if anyone has dynoed one of these or seen one dyno. thanks

00vabchgt · April 15th, 2007, 02:26 PM

i'm making about 250hp, 290 tq with exhaust (stock manifolds), JLT, UDP's, tb/ plenum, diablosport tune (not custom).

bransdaman78 · April 15th, 2007, 02:38 PM

the 03/04 GT will make a little power than the previous years, about 10 or so

jcint · April 18th, 2007, 02:45 AM

I got cams underdrive pulleys, full exhuast no cats and a steeda RAI and a custome tune at diablosport got dynoed at 250 rwhp 287 torque BTW i was told my actual HP was like 280hp because the tune shops ratings are 20 - 25 hp off. I sure hope so.

rk_2000_Z/28 · April 18th, 2007, 11:38 AM

My buds '02 GT made 230/278 to the wheels on a Mustang dyno (which ALWAYS run low). He has a BBK CAI, BBK throtle body, MAC 3" exhaust with off road x-pipe, and a dyno tune.

I know the HP numbers seem very low, but the torque numbers are good and 278 is at 3800 rpm. If it were a DynoJet, I guarantee it would be 250+ to the wheels.

ChrisJ · April 18th, 2007, 01:51 PM

Originally Posted by bransdaman78

the 03/04 GT will make a little power than the previous years, about 10 or so

WHo told you that?????

sonicblue · April 18th, 2007, 02:44 PM

yea i was kinda wonderin the same

acmillr · April 18th, 2007, 03:11 PM

I would say in the 250ish range on a good day............

bransdaman78 · April 18th, 2007, 08:12 PM

Ford tech article, i saw a spec sheet a year or so ago, there are a few mild differences

ChrisJ · April 18th, 2007, 09:15 PM

Originally Posted by bransdaman78

Ford tech article, i saw a spec sheet a year or so ago, there are a few mild differences

There are no differences other then the 03+ have no shrader valve on the fuel rail...All the rest are shear cosmetic...

I have an 02 with an 03 engine...When it was N/A it was the same as the stock 02 engine...

acmillr · April 18th, 2007, 09:27 PM

Originally Posted by ChrisJ

Originally Posted by bransdaman78

Ford tech article, i saw a spec sheet a year or so ago, there are a few mild differences

There are no differences other then the 03+ have no shrader valve on the fuel rail...All the rest are shear cosmetic...

I have an 02 with an 03 engine...When it was N/A it was the same as the stock 02 engine...

The 03 does have a schader valve Chris. I pulled mine off a few weeks ago. Do you need one?

ChrisJ · April 18th, 2007, 11:40 PM

Originally Posted by acmillr

Originally Posted by ChrisJ

Originally Posted by bransdaman78

Ford tech article, i saw a spec sheet a year or so ago, there are a few mild differences

There are no differences other then the 03+ have no shrader valve on the fuel rail...All the rest are shear cosmetic...

I have an 02 with an 03 engine...When it was N/A it was the same as the stock 02 engine...

The 03 does have a schader valve Chris. I pulled mine off a few weeks ago. Do you need one?

Its not suppose to have one...lol

They stopped that in 2002...

I had one with my 2002 and now that i have the 03 engine in there it does not have one...The shrader valve was on the passenger side right above the front injector...

Now my fuel pressure gauge pulls the pressure from the driver side "sensor" location that is there...I had to buy a special adapter from NX to make it work...

But bro I appreciate the offer to give me one though...I dont ahve a use for one...Actually will be switching to new fuel rails soon anyways...

sonicblue · April 19th, 2007, 05:57 AM

i believe chris j is right. i had to buy the adapter from nx as well on my 04

acmillr · April 19th, 2007, 07:34 AM

Sure you don't have an 04 motor, Chris. I have one exactly where you are talking about- right above the passenger side fuel injector closest to the front of the vehicle.

bransdaman78 · April 19th, 2007, 12:37 PM

im not going to argue about it, but i know for fact there is a difference

HMUSN · April 19th, 2007, 12:48 PM

Originally Posted by bransdaman78

im not going to argue about it, but i know for fact there is a difference

not to argue with ya..

but i would honestly like to see some specs on the differences.

i am curious to know if there are any differences besides trim pieces myself.

bransdaman78 · April 19th, 2007, 12:58 PM

i agree, i wish i could find the article, but like i said the differences are very minimal, my understanding was that the compression changed ever so slightly, and some electronics changed as well - it doesnt make sense to me either, esp with the 05 model change coming up

ChrisJ · April 19th, 2007, 03:18 PM

Originally Posted by acmillr

Sure you don't have an 04 motor, Chris. I have one exactly where you are talking about- right above the passenger side fuel injector closest to the front of the vehicle.

They quit putting them ont he fuel rail in 02...I know beucase I had mine set-up for the 02 and then when they put the 03 in it did not have it...

Sounds like someone either swapped your rails for an 02 at some point or you got a factory freak...

And there is NO DIFFERENCE in power between the engines...Sorry but the article is mistaken...Of coarse there are factory freaks but not by much and that is not year specific...

acmillr · April 19th, 2007, 03:21 PM

Originally Posted by ChrisJ

Originally Posted by acmillr

Sure you don't have an 04 motor, Chris. I have one exactly where you are talking about- right above the passenger side fuel injector closest to the front of the vehicle.

They quit putting them ont he fuel rail in 02...I know beucase I had mine set-up for the 02 and then when they put the 03 in it did not have it...

Sounds like someone either swapped your rails for an 02 at some point or you got a factory freak...

And there is NO DIFFERENCE in power between the engines...Sorry but the article is mistaken...Of coarse there are factory freaks but not by much and that is not year specific...

Yeah, I've got a factory freak- 312/326 and I've done barely anything to it. They must have used some leftover rails at the end of the year 2002, because I got the car with 16,000 miles and the kid I bought it from didn't even know how to unlatch the hood............

ChrisJ · April 19th, 2007, 03:29 PM

Originally Posted by acmillr

Originally Posted by ChrisJ

Originally Posted by acmillr

Sure you don't have an 04 motor, Chris. I have one exactly where you are talking about- right above the passenger side fuel injector closest to the front of the vehicle.

They quit putting them ont he fuel rail in 02...I know beucase I had mine set-up for the 02 and then when they put the 03 in it did not have it...

Sounds like someone either swapped your rails for an 02 at some point or you got a factory freak...

And there is NO DIFFERENCE in power between the engines...Sorry but the article is mistaken...Of coarse there are factory freaks but not by much and that is not year specific...

Yeah, I've got a factory freak- 312/326 and I've done barely anything to it. They must have used some leftover rails at the end of the year 2002, because I got the car with 16,000 miles and the kid I bought it from didn't even know how to unlatch the hood............

It is always a possibility that they could have just put some left over rails from 02 on there...

Yeah you have done "alittle"...lololololololol

Enjoy the shrader valve...I know I miss mine...But Oh well I got everything to work now...

April 15th, 2007, 01:59 PM	#1
tording92lxnotch Regular Join Date: Apr 2007 Posts: 165 iTrader: 0 reviews	HP numbers 99-04 What kind of power are GT's from 99-04 making with minor bolt ons like exhaust and cold air and stuff like that? I am looking for wheel horsepower like from a dyno if anyone has dynoed one of these or seen one dyno. thanks __________________ 92 notch--Shorty headers--Pro 5.0--3G alt--U/D pullies--A/C delete--190 LPH Walbro FP--Compucar N2O kit--FMS alum D/S--Taurus fan--Weld Draglites--Mallory 685 ign Box--dccontrol fan controller 13.0 - 108 mph - 1.9 60' - 90 shot N2O and 175k on the clock

April 15th, 2007, 02:38 PM	#3
bransdaman78 Regular Join Date: Mar 2007 Posts: 450 iTrader: 0 reviews	the 03/04 GT will make a little power than the previous years, about 10 or so __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

April 18th, 2007, 11:38 AM	#5
rk_2000_Z/28 Forever in our hearts travis_afx 2003 SVT Cobra Join Date: Apr 2007 Location: Enid, OK Posts: 4,313 iTrader: 0 reviews	My buds '02 GT made 230/278 to the wheels on a Mustang dyno (which ALWAYS run low). He has a BBK CAI, BBK throtle body, MAC 3" exhaust with off road x-pipe, and a dyno tune. I know the HP numbers seem very low, but the torque numbers are good and 278 is at 3800 rpm. If it were a DynoJet, I guarantee it would be 250+ to the wheels. __________________ 03 Cobra-Slow 02 SS, 00 Z/28-Gone Rest In Peace Travis Billings

April 18th, 2007, 02:44 PM	#7
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	yea i was kinda wonderin the same __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

April 18th, 2007, 03:11 PM	#8
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	I would say in the 250ish range on a good day............ __________________

April 18th, 2007, 02:45 AM	#4
jcint Newbie Join Date: Apr 2007 Posts: 13 iTrader: 0 reviews	I got cams underdrive pulleys, full exhuast no cats and a steeda RAI and a custome tune at diablosport got dynoed at 250 rwhp 287 torque BTW i was told my actual HP was like 280hp because the tune shops ratings are 20 - 25 hp off. I sure hope so.

April 18th, 2007, 08:12 PM	#9
bransdaman78 Regular Join Date: Mar 2007 Posts: 450 iTrader: 0 reviews	Ford tech article, i saw a spec sheet a year or so ago, there are a few mild differences __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

April 19th, 2007, 05:57 AM	#13
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	i believe chris j is right. i had to buy the adapter from nx as well on my 04 __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

April 19th, 2007, 07:34 AM	#14
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Sure you don't have an 04 motor, Chris. I have one exactly where you are talking about- right above the passenger side fuel injector closest to the front of the vehicle. __________________

April 19th, 2007, 12:37 PM	#15
bransdaman78 Regular Join Date: Mar 2007 Posts: 450 iTrader: 0 reviews	im not going to argue about it, but i know for fact there is a difference __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

April 19th, 2007, 12:58 PM	#17
bransdaman78 Regular Join Date: Mar 2007 Posts: 450 iTrader: 0 reviews	i agree, i wish i could find the article, but like i said the differences are very minimal, my understanding was that the compression changed ever so slightly, and some electronics changed as well - it doesnt make sense to me either, esp with the 05 model change coming up __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

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