Why does the 98GT have more hp than the 96 and 97 years? - Ford Mustang Forums : Corral.net Mustang Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 44 Old 12-08-2001, 08:57 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Question Why does the 98GT have more hp than the 96 and 97 years?

My guestion is stated above. Thanks

redride is offline  
Sponsored Links
Advertisement
 
post #2 of 44 Old 12-08-2001, 09:02 PM
 
Trader Feedback: (0)
Join Date: Sep 2000
Posts: 1,949
Most people agree it was a compter tuning thing. We know it wasn't the heads!

Hope that helps.

Stedda is offline  
post #3 of 44 Old 12-08-2001, 09:51 PM
Registered User
 
2cammer97's Avatar
 
Trader Feedback: (9)
Join Date: Jul 2000
Location: Dallas, TX
Posts: 1,134
computer tweak, that is it. i've talked to numerous people at mustang shops and the 96 and 97 computer is the worst out of any year mustang to have. they are very restrictive in that tuners cannot change as much stuff.

marcus

'99 Jeep Wrangler Sport 4.0L - offroad toy
2cammer97 is offline  
Sponsored Links
Advertisement
 
post #4 of 44 Old 12-08-2001, 10:09 PM
 
Trader Feedback: (0)
Join Date: Sep 2000
Posts: 347
Will a 98 GT computer work in a 96

Just had a thought if any one tryed a 98 computer in a 96 GT.

96GT
00 Engine/Trans
delow is offline  
post #5 of 44 Old 12-08-2001, 10:56 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Cool guys, also what is the stock rear-end gear ratio of this car? 3.27s or 2.73s? thanks
redride is offline  
post #6 of 44 Old 12-08-2001, 10:59 PM
 
Trader Feedback: (0)
Join Date: Sep 2000
Posts: 1,949
3.27's
Stedda is offline  
post #7 of 44 Old 12-08-2001, 11:01 PM
Registered User
 
Tungsten's Avatar
 
Trader Feedback: (2)
Join Date: Jul 2000
Location: Nashville TN
Posts: 402
3.08:1 was the stock gear ratio.

3.27:1 was an optional upgrade that could be ordered.

¤ 2003 DSG Mach 1
¤ 2004 F240 PSD 6.0L Crew Cab 4x4
Tungsten is offline  
post #8 of 44 Old 12-08-2001, 11:05 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Quote:
Originally posted by Tungsten
3.08:1 was the stock gear ratio.

3.27:1 was an optional upgrade that could be ordered.

How do I find out which gear ratio it has?
redride is offline  
post #9 of 44 Old 12-08-2001, 11:10 PM
Registered User
 
Tungsten's Avatar
 
Trader Feedback: (2)
Join Date: Jul 2000
Location: Nashville TN
Posts: 402
Are you the original owner? If not, there's always a chance it's been changed out...

1. Check the door tag. There's an axle ratio code there. Can't remember what the designations were, but you'll be able to find hits on "mustang door tag codes" with any of the search engines.

2. Jack the rear of the car up, put the car in neutral. Chalk mark a rear tire and the axle. Rotate the tire one full revolution while watching the number of revolutions the axle makes.

If the axle travels approx 3 turns, it's a 3.08

If it travels more like 3-1/4 turns, it's a 3.27

3-1/2 turns? 3.55

3-3/4 turns? 3.73

And so forth.

¤ 2003 DSG Mach 1
¤ 2004 F240 PSD 6.0L Crew Cab 4x4
Tungsten is offline  
post #10 of 44 Old 12-08-2001, 11:11 PM
 
Trader Feedback: (0)
Join Date: Mar 2001
Posts: 55
2:73 was the stock ratio in 96-98. 3:27 was an optional axle. Ford hasn't used a 3:08 stock in a Mustang in years!
Easiest way to find out your gear ratio, assuming it hasn't been changed, is to call a Ford dealer and give them your VIN, they can tell you. I believe there is a code for the axle on the inside of the drivers door, but I don't know the axle-codes.
The only thing, power-wise, that changed for the 98 was the PCM, that accounted for 10hp. If im not mistaken it had something to do with air/fuel ratios that made the difference.

Eric

Silver_Stang is offline  
post #11 of 44 Old 12-08-2001, 11:33 PM
Registered User
 
97MattGT's Avatar
 
Trader Feedback: (0)
Join Date: Oct 2000
Location: Ft. Lauderdale, FL
Posts: 1,359
Ok, so would a 96-97 Gt with a timing adjuster be pretty much the equivalent of a 98 Gt???? Also, if the 98 received a more agressive computer, does it require a higher octane gas??

DTA Headswap'd 97 Black GT
260 RWHP 299 RWTQ

M/M #40
97MattGT is offline  
post #12 of 44 Old 12-08-2001, 11:39 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Quote:
Originally posted by Silver_Stang
2:73 was the stock ratio in 96-98. 3:27 was an optional axle. Ford hasn't used a 3:08 stock in a Mustang in years!
Eric

That sucks. Ah well.... looks like I need to invest in some gears.
redride is offline  
post #13 of 44 Old 12-09-2001, 12:02 AM
 
Trader Feedback: (0)
Join Date: Mar 2001
Posts: 55
The 98 doesn't require a higher octane gas, the compression stayed the same, and there is still a conservative heir to the tuning.

A timing adjuster is a good mod, but driving is enough to make up the 10hp. ...and tires of course.

Eric
Silver_Stang is offline  
post #14 of 44 Old 12-09-2001, 12:06 AM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Quote:
Originally posted by Silver_Stang


A timing adjuster is a good mod, but driving is enough to make up the 10hp. ...and tires of course.

Eric

How much is a timing adjuster? What is the stock timing set at? 10 degrees?
redride is offline  
post #15 of 44 Old 12-09-2001, 12:46 AM
Registered User
 
Trader Feedback: (0)
Join Date: Dec 1999
Location: St Louis IL
Posts: 437
Quote:
Originally posted by Silver_Stang
Ford hasn't used a 3:08 stock in a Mustang in years!
Eric

My 98 convertible has 3.08 gears.
SnakeEyes is offline  
post #16 of 44 Old 12-09-2001, 01:03 AM
Registered User
 
46stang's Avatar
 
Trader Feedback: (1)
Join Date: Dec 1999
Location: CA
Posts: 253
delow: Yes you can put a 98 pcm in your 96, but it has to be a 49 state pcm(non-california model) and you have to update the pats(key) system to the 98 style. it's pretty easy as i have a 98 pcm in my 96 but not very cost effective. it didn't cost me anything so thats the only reason i did it and to be honest i couldn't really notice much of a sotp difference!
Leon

03 cobra, Bolt on's. 11.49 @ 122 mph famoso
98 gt, PI heads, comp 262ah cams, K&N, Bassani catted X pipe, 70mm T/B, 3.73's, trickflow track heat intake.
46stang is offline  
post #17 of 44 Old 12-09-2001, 01:55 AM
Registered User
 
2cammer97's Avatar
 
Trader Feedback: (9)
Join Date: Jul 2000
Location: Dallas, TX
Posts: 1,134
hey leon, how did you run the two temp sensors to the one on the intake for the 99 manifold. i used a t-fitting but i'm about to run one over to the thermo housing. i did not know that you had a 98 computer. i wish i had one. every time i get the chip tuned they talk about how ****ty the 96 and 97 computers are. oh well. when are you gettin the chip done, i still want to see yours hit 300 rwhp

marcus

'99 Jeep Wrangler Sport 4.0L - offroad toy
2cammer97 is offline  
post #18 of 44 Old 12-09-2001, 08:43 AM
 
Trader Feedback: (0)
Join Date: May 2001
Posts: 8
Just to answer the question and a tid bit, 98 Romeo mod heads (mid year) did have the shroud missing next to the exaust port, not that it made a difference. The only way you can tell if you have them is to pull the head. The computer tune was also the increase.
Red Mustang Gt 46 is offline  
post #19 of 44 Old 12-09-2001, 09:54 AM
Registered User
 
Tungsten's Avatar
 
Trader Feedback: (2)
Join Date: Jul 2000
Location: Nashville TN
Posts: 402
Dammit... the 3.08 was the stock gear for 1998 according to Ford's own specifications. The 2.73 was used in 1994/95 only. 3.27 was an option for all of those years.

Sheesh!!! Some people would argue about the color of the sky.

All factory specs for the 1998 GT can be seen on my home page, where I have copied Ford's own list of specs/options for that year model.

http://www.theyancys.com/mustang/specs.html

¤ 2003 DSG Mach 1
¤ 2004 F240 PSD 6.0L Crew Cab 4x4
Tungsten is offline  
post #20 of 44 Old 12-09-2001, 10:40 AM
 
Trader Feedback: (0)
Join Date: Mar 2001
Posts: 55
Not that it matters, but OK!

My 98 must have been a 95, I counted the teeth myself on my 2:73 ring that came out when the 3:73's went in. In addition to that, I counted my bro-in laws in his 95 Cobra when his came out and it was a 3:08. To my knowledge, that was the last 3:08 used in a Mustang.
I may be wrong, but I don't think so. In fact my window sticker says 2:73 on it.

but I wont argue.......

Eric
Silver_Stang is offline  
post #21 of 44 Old 12-09-2001, 11:49 AM
Registered User
 
BlueStangGT's Avatar
 
Trader Feedback: (8)
Join Date: Mar 2001
Location: OK
Posts: 658
Quote:
Originally posted by Tungsten
Dammit... the 3.08 was the stock gear for 1998 according to Ford's own specifications. The 2.73 was used in 1994/95 only. 3.27 was an option for all of those years.

Sheesh!!! Some people would argue about the color of the sky.

All factory specs for the 1998 GT can be seen on my home page, where I have copied Ford's own list of specs/options for that year model.
Ahhhh... Weedhopper... you are only partially correct. The stock gears for 96-98 GT AODE was 3.08. The stock gears for 96-98 GT 5-spd. were 2.73. The high ratio option for either tranny was 3.27. Now what color is that sky again?

Tom

1998 Bright Atlantic Blue GT Coupe
5-spd., Headswap, Big Bore, 4.30's, blah, blah, blah.

Last edited by BlueStangGT; 12-09-2001 at 11:52 AM.
BlueStangGT is offline  
post #22 of 44 Old 12-09-2001, 12:24 PM
 
Trader Feedback: (0)
Join Date: Sep 2000
Posts: 219
RED...NO BLUE... AAAAAHHHHHHHHHHH
bsailors is offline  
post #23 of 44 Old 12-09-2001, 01:29 PM
 
Trader Feedback: (1)
Join Date: Dec 1999
Posts: 552
A Team Mustang Engineer posted here once that there was also some minor exhaust port changes in 1998.

Quote:
My 98 convertible has 3.08 gears.
I bet it is an automatic, right? BlueStang speaks truth, the automatics had a bit steeper ratio to help with a smaller first gear ratio.
GarrettW is offline  
post #24 of 44 Old 12-09-2001, 03:23 PM
Registered User
 
Tungsten's Avatar
 
Trader Feedback: (2)
Join Date: Jul 2000
Location: Nashville TN
Posts: 402
Quote:
Originally posted by BlueStangGT


Ahhhh... Weedhopper... you are only partially correct. The stock gears for 96-98 GT AODE was 3.08. The stock gears for 96-98 GT 5-spd. were 2.73. The high ratio option for either tranny was 3.27. Now what color is that sky again?
Aqua-marine, dammit!!!

Like I care what you 5-speed guys have anyway. Automatics rule, baby! <sigh> Well, you've got to give me points for enthusiasm and blatant denial.

¤ 2003 DSG Mach 1
¤ 2004 F240 PSD 6.0L Crew Cab 4x4
Tungsten is offline  
post #25 of 44 Old 12-09-2001, 03:34 PM
 
Trader Feedback: (0)
Join Date: Dec 2001
Posts: 318
Quote:
Originally posted by redride



How do I find out which gear ratio it has?
There is a metal tag (unless someone's been there and removed it) under one of the rear end cover bolts that tells the ratio.
burlesonsnake is offline  
post #26 of 44 Old 12-09-2001, 03:47 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
Quote:
Originally posted by burlesonsnake
There is a metal tag (unless someone's been there and removed it) under one of the rear end cover bolts that tells the ratio.

Cool, I'll check it out. Its probably the 3.08 gear though. You guys are hillarious by the way. lol
redride is offline  
post #27 of 44 Old 12-09-2001, 09:03 PM
Registered User
 
BlueStangGT's Avatar
 
Trader Feedback: (8)
Join Date: Mar 2001
Location: OK
Posts: 658
Quote:
Originally posted by Tungsten


Like I care what you 5-speed guys have anyway. Automatics rule, baby! <sigh> Well, you've got to give me points for enthusiasm and blatant denial.
ROFL!!! Points given. That's OK Dave... I know you're jonesin' hard for a 5-speed, and heads, and headers, and intake.....

/me runs for cover

Tom

1998 Bright Atlantic Blue GT Coupe
5-spd., Headswap, Big Bore, 4.30's, blah, blah, blah.
BlueStangGT is offline  
post #28 of 44 Old 12-09-2001, 10:05 PM
Registered User
 
68Stang's Avatar
 
Trader Feedback: (0)
Join Date: Nov 2000
Location: Denison, Texas
Posts: 249
Cool

Quote:
Originally posted by bsailors
RED...NO BLUE... AAAAAHHHHHHHHHHH
HAHAHAHAHAHAHAHAHAHAHAHAAHAH! Am I the only one who gets this? :-D:-D
68Stang is offline  
post #29 of 44 Old 12-09-2001, 10:52 PM
Registered User
 
BlueStangGT's Avatar
 
Trader Feedback: (8)
Join Date: Mar 2001
Location: OK
Posts: 658
Quote:
Originally posted by 68Stang

HAHAHAHAHAHAHAHAHAHAHAHAAHAH! Am I the only one who gets this? :-D:-D
Nih

Tom

1998 Bright Atlantic Blue GT Coupe
5-spd., Headswap, Big Bore, 4.30's, blah, blah, blah.
BlueStangGT is offline  
post #30 of 44 Old 12-10-2001, 09:07 AM
Registered User
 
Tungsten's Avatar
 
Trader Feedback: (2)
Join Date: Jul 2000
Location: Nashville TN
Posts: 402
'Tis only a flesh wound!

¤ 2003 DSG Mach 1
¤ 2004 F240 PSD 6.0L Crew Cab 4x4
Tungsten is offline  
post #31 of 44 Old 12-10-2001, 09:58 AM
Registered User
 
Trader Feedback: (10)
Join Date: Jan 2000
Location: Raleigh,NC
Posts: 313
Quote:
Originally posted by bsailors
RED...NO BLUE... AAAAAHHHHHHHHHHH
LOL. I needed that this morning.
Drew96gt is offline  
post #32 of 44 Old 12-10-2001, 10:20 AM
Registered User
 
46stang's Avatar
 
Trader Feedback: (1)
Join Date: Dec 1999
Location: CA
Posts: 253
2cammer97: i kept getting air pockets when i used the t fitting, so i tapped the top of the tstat housing and put the sensor in it. the metal is a little thin so i also used a alt. pulley nut on the inside of the tstat housing and tightened it down on to the sensors threads protruding into the housing. it worked fine after that you could just get a bullit intake as it has the provision for 2 sensors
yea it's actually pretty easy to put a 98 pcm in, just buy the pcm, the pats transeiver and module and bolt it all in! Hopefully i will get it tuned this sat! ill let you know the results if i do! good or bad?
Leon

03 cobra, Bolt on's. 11.49 @ 122 mph famoso
98 gt, PI heads, comp 262ah cams, K&N, Bassani catted X pipe, 70mm T/B, 3.73's, trickflow track heat intake.
46stang is offline  
post #33 of 44 Old 12-10-2001, 01:45 PM
 
Trader Feedback: (0)
Join Date: Jul 2001
Posts: 213
ok. My metal tag on the rear cover says I have 3:08. Its a auto. I have seen a article on the heads for 98, that ford had three versions they played with??? This was in a MMFF mag I think?? I am going to look thru the old issues to find it. If I remember right the last change was suppose to be used in 99. If I can find the issue I will post it. I am old and my memory fads at times!!! lol..
bud4660 is offline  
post #34 of 44 Old 12-10-2001, 04:26 PM Thread Starter
 
Trader Feedback: (0)
Join Date: Oct 2000
Posts: 864
So, what does this car run stock anyway in the quarter? How heavy is it? Just wondering.
redride is offline  
post #35 of 44 Old 05-09-2002, 11:31 AM
Registered User
 
97GTConvt's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2000
Location: Torrington, CT
Posts: 277
So is the 97 computer with a Hypertech chip the same performance as a 98 computer with a Hypertech chip?

1997 Autumn Orange Mustang GT Convertible(1 of 1,519 produced) - SOLD
2003 Torch Red Mustang SVT Cobra Convertible - FOR SALE
97GTConvt is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome