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Old 01-04-2009, 01:32 PM   #1
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98 GT vs 03 V6

Alright, my buddy just bought a 98 GT, auto with flows. Other than that, stock. He's been giving me _____ about having a v6, (now that he finally bought a mustang).

When he comes back from training (army), in the summer we are going to race (at a track, Lake Geneva Raceway 1/4 mile)

I'm still bouncing between building a badass sixer and buying a v8.

What would I have to do to my sixer to beat his *** in the quarter.
I'd love to beat him with a six, but if its too much work/money with little outcome, i'll just buy the v8.
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Old 01-04-2009, 01:44 PM   #2
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Re: 98 GT vs 03 V6

98 gt auto runs 15.5 in the quarter stock~
98 gt manual runs 15.1 in the quarter stock~

thats give or take a couple tenths in stock form

99-04 v6 mustang in auto runs 16.0 give or take .2 and the manual 15.5 give or take .2~

so you are at a half second disadvantage if both cars take off evently (personally go to the track... as reaction time can make one car look faster than the other.)

Gears/tlok, exhaust, cai, upd, tune should do it no problem if he is stock and you launch the car good.
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Old 01-04-2009, 04:32 PM   #3
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Re: 98 GT vs 03 V6

Yah, I figured 98's weren't too far ahead of me, a 99+ 2v is another story.
I plan on having all those basic mods done with the 6 in the summer anyways.
The eibach pro kit and 315s out back should help with the launch.
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Old 01-05-2009, 01:15 PM   #4
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Re: 98 GT vs 03 V6

If you want to beef up the v6 quick I'd recommend a cold air intake, they're simple to install & will add hp.
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Old 01-05-2009, 08:03 PM   #5
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Re: 98 GT vs 03 V6

Eh, I think it's only good for 1-2 hp alone, but with more mods and a tune it becomes more effective. I got the simple American Muscle cheapy.
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Old 01-05-2009, 08:15 PM   #6
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Re: 98 GT vs 03 V6

if you want the car to run faster. gears and a tune are the way to go
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Old 01-05-2009, 09:15 PM   #7
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Re: 98 GT vs 03 V6

I have been in this situation. From a roll of 40 to 120 against a 98 GT. I jumped a car on him through second and then he gradually gained it back till I hit about 100 and then he gained a car on me from 100 to 120. But the quarter you are only going to get up to about 95. My mods are wires, CAI, UD pullies (crank and water)and harmonic balancer, Heli-X throttle body spacer, Eibach sport springs, and dual flows. I also raced my friends auto convt. 03 GT and beat it too from 40 to 100 roll
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Old 01-05-2009, 09:16 PM   #8
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Re: 98 GT vs 03 V6

That's what i figure, but udp's, cai, exhaust, and other small supporting mods will be more effective when figured into the tune, so I will have those first.

And yes, gears/tlok are a must.
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Old 01-05-2009, 09:19 PM   #9
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Re: 98 GT vs 03 V6

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Originally Posted by SC_STEEDA View Post
I have been in this situation. From a roll of 40 to 120 against a 98 GT. I jumped a car on him through second and then he gradually gained it back till I hit about 100 and then he gained a car on me from 100 to 120. But the quarter you are only going to get up to about 95. My mods are wires, CAI, UD pullies (crank and water)and harmonic balancer, Heli-X throttle body spacer, Eibach sport springs, and dual flows. I also raced my friends auto convt. 03 GT and beat it too from 40 to 100 roll
Well, I really don't expect to win a race over 100 (not that I want to go that fast outside of a track) due to the awesome top end of the 3.8. But, that is good to know, since I will have similar mods.
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Old 01-05-2009, 09:22 PM   #10
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Re: 98 GT vs 03 V6

i forgot to mention you are going to want to get some more traction cause i would burn second bad with just 245 rears. You might want to upgrade to some Z rated michelins and go 275. I have the GT rims and the 275 fit and they also look good when they bulge over the rims. As sonicpony said i am not tuned so if you get a tuner you will have no problem with the 98 GT
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Old 01-05-2009, 09:48 PM   #11
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Re: 98 GT vs 03 V6

315/35/17 Sumitomos.
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Old 01-06-2009, 12:57 AM   #12
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Re: 98 GT vs 03 V6

well i know personally that the 96-98 gt's are the red headed stepchild, but i never had a problem with a v-6 in my 96 gt. i know there are some nicely tuned v6's but i wouldnt shut the 98 out completely. its a driver's race.
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Old 01-07-2009, 11:20 PM   #13
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Re: 98 GT vs 03 V6

Well, we're both autos, so probably not too much driver skill needed, maybe the launch.
He'd probably floor it and burn em up for a second or to before gaining traction. (245s out back)

I think the pro kit and 315s will help with my launch,
and the gears/tlok will help with my acceleration issues.
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Old 01-07-2009, 11:20 PM   #14
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Re: 98 GT vs 03 V6

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Originally Posted by modular2valve View Post
well i know personally that the 96-98 gt's are the red headed stepchild, but i never had a problem with a v-6 in my 96 gt. i know there are some nicely tuned v6's but i wouldnt shut the 98 out completely. its a driver's race.
How close to stock is your GT?

His only has a pair of flows.
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Old 01-08-2009, 02:42 AM   #15
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Re: 98 GT vs 03 V6

its not stock now, when i raced a few i only sported a o/r h pipe and flows, one being tuned with a few bolt ons. granted i spun bad when i had the 245's but i reeled in him and when his auto shifted out of third the race was done. the car has more mods since, but its also a 5 speed.
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Old 01-08-2009, 08:20 AM   #16
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Re: 98 GT vs 03 V6

my 01 was faster than a stock 96-98 gt auto easy, the manual meh its a drivers race... it doesnt take much to get a 99-04 v6 in the high 14s
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Old 01-08-2009, 07:40 PM   #17
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Re: 98 GT vs 03 V6

Yah, but you probably had a manual, I just figured he may be start to reel me in after 60. Hopefully the tune will solve that issue.
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Old 01-08-2009, 10:33 PM   #18
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Re: 98 GT vs 03 V6

he is not going to reel you in at 60. like i said when i raced a GT we rolled at 40. and i instantly gained a car off of him through second. he started gaining back about 90.
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Old 01-09-2009, 12:22 AM   #19
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Re: 98 GT vs 03 V6

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my 01 was faster than a stock 96-98 gt auto easy, the manual meh its a drivers race... it doesnt take much to get a 99-04 v6 in the high 14s
thats what the 96-98's run stock, u can get them to run low 14s with ease. keep in mind the 98's came with a 15 hp increase over the 96-97's. im just saying dont underestimate the next car, whether its a 6 or 8. some people think that the sn95's are easy kills, but thinking everyone is a bone stock non pi will get u wondering why he showed u taillights.


sc steeda- was the other car stock? at or mt?
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Old 01-11-2009, 09:36 PM   #20
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Re: 98 GT vs 03 V6

i know he had exhaust not sure if he had bolt ons (98 GT auto). the 02 GT was bonestock auto.
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Old 01-11-2009, 09:36 PM   #21
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Re: 98 GT vs 03 V6

o and the 02 GT was also a convt too.
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Old 01-12-2009, 09:16 AM   #22
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Re: 98 GT vs 03 V6

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thats what the 96-98's run stock, u can get them to run low 14s with ease.
The autos do not run high 14s stock, they are half a second slower than the manuals, which struggled to run 14.8s or so with an average driver and good 60ft times, most stock run low 15s in manual mid 15s in auto, for 98 a bit better but still nearly the same.

A few bolt ons and a good set of gears wakes them up of course, but the v6s are a half second slower stock~ so ... mod for mod they will still be about there if not a little more.
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Old 01-13-2009, 12:02 AM   #23
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Re: 98 GT vs 03 V6

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Originally Posted by sonicpony03 View Post
Alright, my buddy just bought a 98 GT, auto with flows. Other than that, stock. He's been giving me _____ about having a v6, (now that he finally bought a mustang).

When he comes back from training (army), in the summer we are going to race (at a track, Lake Geneva Raceway 1/4 mile)

I'm still bouncing between building a badass sixer and buying a v8.

What would I have to do to my sixer to beat his *** in the quarter.
I'd love to beat him with a six, but if its too much work/money with little outcome, i'll just buy the v8.
If you really want to do it for cheap and make it a for sure thing and only want to do it on the track, then get a $350 NOZ setup and hit it with a 75hp shot and be done with it. It wont destroy your car if you use it for just a few runs and you will destroy that GT.

Better yet tell him you only installed a throttle body spacer and see what he says
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Old 01-13-2009, 12:24 AM   #24
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Re: 98 GT vs 03 V6

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The autos do not run high 14s stock, they are half a second slower than the manuals, which struggled to run 14.8s or so with an average driver and good 60ft times, most stock run low 15s in manual mid 15s in auto, for 98 a bit better but still nearly the same.

A few bolt ons and a good set of gears wakes them up of course, but the v6s are a half second slower stock~ so ... mod for mod they will still be about there if not a little more.
i dunno, there are multiple stock 5 speed cars able to rip off mid 14's consistantly so i can see the auto being about 15s stock. but the v6 runs 16's so u'd have to be slightly modded to run an stock auto gt granted its in good running order.
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Old 01-13-2009, 12:31 AM   #25
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Re: 98 GT vs 03 V6

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well i know personally that the 96-98 gt's are the red headed stepchild, but i never had a problem with a v-6 in my 96 gt. i know there are some nicely tuned v6's but i wouldnt shut the 98 out completely. its a driver's race.
I completely agree with this. When I had my 96gt auto I raced a 03 v6 5spd both stock, at the time I didn't realize it but my stock mufflers were rusted through so I had lost some hp. Not much but a litte. Also my LS wasn't working right either. Anyway with a bad launch he beat my about 1/4 of a car. My front bumper was even with his front wheel. So it's definitely a drivers race.

As far as the CAI goes. Judging from seat of the pants I felt a pretty good change in how quit the car revved up and also it pulled a little(not a lot) bit harder from 4k+.
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Old 01-13-2009, 11:52 AM   #26
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Re: 98 GT vs 03 V6

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Originally Posted by stangaroo View Post
If you really want to do it for cheap and make it a for sure thing and only want to do it on the track, then get a $350 NOZ setup and hit it with a 75hp shot and be done with it. It wont destroy your car if you use it for just a few runs and you will destroy that GT.

Better yet tell him you only installed a throttle body spacer and see what he says
HeHe, he'd believe it. This is a guy who insisted that he gained 5-10 hp with just a K&N air filter in his 92 5.8L F-150.

I don't think he could point the t/b out if I asked him.
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Old 01-13-2009, 02:00 PM   #27
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Re: 98 GT vs 03 V6

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i dunno, there are multiple stock 5 speed cars able to rip off mid 14's consistantly so i can see the auto being about 15s stock. but the v6 runs 16's so u'd have to be slightly modded to run an stock auto gt granted its in good running order.
Yea its all subjective, based on where you are at and what mods you have and the driver etc. I just know 99-04 gts in manual run 14.8-15.2 give or take a couple and autos are about a half second slower.

With v6s though the fastest ive seen is 15.3 stock but 99% of them in manual struggle to run 15.6 or better if that... but with some practice they can do mid 15s... but auto is 16 seconds.
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Old 01-13-2009, 02:05 PM   #28
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Re: 98 GT vs 03 V6

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I just know 99-04 gts in manual run 14.8-15.2 give or take a couple and autos are about a half second slower.
Um, my 2000 GT would run 14.1-14.2 all day long with just a triax and nitto street radials...and I know with some better 60's (2.0-2.1 avg) I could have gotten to the 13s. It had stock exhaust, drop in k&n filter, stock mid pipe, stock tune...certainly wasn't .7 worth of mods there.
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Old 01-13-2009, 07:26 PM   #29
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Re: 98 GT vs 03 V6

I think it also is based on the car itself. Some cars are going to perform better than others, just plain facts. I raced my friends 04 v6 5spd and beat him with my auto 3 times in a row. He's been driving stick since he was 12, he can shift very well.

You put two identical stock 2003 3.8L's on a dyno and they aren't going to perform the same. One will outperform the other.
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Old 01-15-2009, 04:16 PM   #30
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Re: 98 GT vs 03 V6

This seems like it would be a good race. I found some info that may be helpful. I found this info on Autotrader.com. It seems to me that with a few bolt on's and a tune; you should be able to beat your friend's 98GT

From Autotrader.com
Advantages of Mustang GT2dr Cpe compared to Mustang Standard2dr Cpe
8 cylinders standard, versus 6 cylinders standard.
32 more horsepower (225 vs 193).
65 more ft/lbs of torque (290 vs 225).
Locking Rear Differential standard, versus not available.

Disadvantages of Mustang GT2dr Cpe compared to Mustang Standard2dr Cpe
2 ft. wider curb-to-curb turning diameter (38.3 vs 36).
155 pound(s) more base curb weight (3269 vs 3114).
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