Modded 1998 Mustang GT. Looking for horsepower estimate.

my98stanggt · September 26th, 2007, 01:05 PM

I have a 98 GT with a H-Pipe with no cats, Flowmasters, Trick flow upper intake elbow, and a CAI. any idea of the HP that I might be getting? I just bought the car and it feels like alot. not sure if its chipped or other gears in it. but it squaks in 2nd. Oh yeah its a automatic.

Thanks

G.T. Rags · September 26th, 2007, 01:13 PM

200 rwhp.......

HMUSN · September 26th, 2007, 01:18 PM

:homo

welcome to the forums.

my98stanggt · September 26th, 2007, 01:19 PM

thanks..

GTsetGO · September 26th, 2007, 01:22 PM

you guys think it is that high?? weren't they 205 to the flywheel as it is?

my98stanggt · September 26th, 2007, 01:25 PM

I was looking at the specs for them stock and it says 225hp. Is that at the motor?

G.T. Rags · September 26th, 2007, 01:26 PM

Originally Posted by my98stanggt

I was looking at the specs for them stock and it says 225hp. Is that at the motor?

HMUSN · September 26th, 2007, 01:34 PM

yes. 225 at the motor is correct.

200 rwhp is a good guess based on your mods.

stanglifemike · September 26th, 2007, 09:11 PM

In an auto, I would put money on you being right around 190. NO WAY your at 200 rwhp

stanglifemike · September 26th, 2007, 09:13 PM

Oh and I bet that what your feeling and whats chirping 2nd gear is a set of 4.10's.

G.T. Rags · September 26th, 2007, 10:15 PM

Originally Posted by stanglifemike

In an auto, I would put money on you being right around 190. NO WAY your at 200 rwhp

dude....it was a guesstimate....we didn't want to hurt his feelings

stanglifemike · September 26th, 2007, 10:49 PM

Originally Posted by 96GTRagTop

Originally Posted by stanglifemike

In an auto, I would put money on you being right around 190. NO WAY your at 200 rwhp

dude....it was a guesstimate....we didn't want to hurt his feelings

Just being realistic, it was a slap in the face for me with my 98

jbm5781 · September 26th, 2007, 11:34 PM

Honestly, I don't know if it would be the 4.10's or not. Unless my gears have been switched out (which I dont think they have)my stock 3.27's do the same thing. I have a 97 auto and it will chirp 2nd pretty damn hard. If i go through the gears, yea yea I know most people dont do this in an auto, it feels like its going to jump sideways. Granted I may be a little higher than 190 but still... I doubt its enough to equal his power plus 4.10's

my98stanggt · September 26th, 2007, 11:46 PM

I dont have to go threw the gears in order for it to chirp 2nd. I just put it in drive and nail it and there is goes. It does pull hard when it chirps also. How do I know what gears are in it? The previous owner did do some suspension mods as well.

stanglifemike · September 27th, 2007, 12:03 AM

Originally Posted by my98stanggt

I dont have to go threw the gears in order for it to chirp 2nd. I just put it in drive and nail it and there is goes. It does pull hard when it chirps also. How do I know what gears are in it? The previous owner did do some suspension mods as well.

I dont either, just saying when I had just your mods, I wasn't at 200 to the tires. Spend money on mods, not a dyno visit. You around 185-190 rwhp

jbm5781 · September 27th, 2007, 12:05 AM

Do you know for sure that they have been changed out? I know there is a gear calculator for a manual but I dont believe there is one for an auto.

Mine will also chirp 2nd if I nail it but thats because I have a few other upgrades (full catback exhaust, UD pullies, PI intake, MAF upgrade, CAI). You could possibly have 4.10's or 3.73's. What rpms do you run at 60 or any other mph you know of?

G.T. Rags · September 27th, 2007, 12:08 AM

Originally Posted by stanglifemike

Originally Posted by my98stanggt

I dont have to go threw the gears in order for it to chirp 2nd. I just put it in drive and nail it and there is goes. It does pull hard when it chirps also. How do I know what gears are in it? The previous owner did do some suspension mods as well.

I dont either, just saying when I had just your mods, I wasn't at 200 to the tires. Spend money on mods, not a dyno visit. You around 185-190 rwhp

when did he say anything about spending money on a dyno....?he just wanted a guesstimate

my98stanggt · September 27th, 2007, 12:13 AM

Just a guesstimate... Not spending money yet on a dyno pull. I dont know for sure that they have been swapped out. I just purchased the car and have no clue what was done to it besides what I stated above.

I know that with O/D off and in 3rd gear going about 55mph my RPM's are at or around 2500-2600

jbm5781 · September 27th, 2007, 12:19 AM

well, just for comparison, I have 3.27's stock and mine in o/d going 60 is usually setting right at 2k. Going 40, im right around 1300.

If you decide you want to spend about $300 on a good mod, do yourself a favor and get a PI intake. It makes a HUGE difference on our cars, especially past 3k. Plus you'll get around 15-20 hp out of it

stanglifemike · September 27th, 2007, 12:30 AM

Originally Posted by 96GTRagTop

Originally Posted by stanglifemike

Originally Posted by my98stanggt

I dont have to go threw the gears in order for it to chirp 2nd. I just put it in drive and nail it and there is goes. It does pull hard when it chirps also. How do I know what gears are in it? The previous owner did do some suspension mods as well.

I dont either, just saying when I had just your mods, I wasn't at 200 to the tires. Spend money on mods, not a dyno visit. You around 185-190 rwhp

when did he say anything about spending money on a dyno....?he just wanted a guesstimate

I didnt think he did, just reassuring he doesnt need to make that move . I know wondering and not knowing for sure will drive me crazy. The numbers I told him are spot on though.

September 26th, 2007, 01:05 PM	#1
my98stanggt Newbie Join Date: Sep 2007 Posts: 10 iTrader: 0 reviews	Modded 1998 Mustang GT. Looking for horsepower estimate. I have a 98 GT with a H-Pipe with no cats, Flowmasters, Trick flow upper intake elbow, and a CAI. any idea of the HP that I might be getting? I just bought the car and it feels like alot. not sure if its chipped or other gears in it. but it squaks in 2nd. Oh yeah its a automatic. Thanks

September 26th, 2007, 01:18 PM	#3
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	:homo welcome to the forums. __________________

September 26th, 2007, 01:22 PM	#5
GTsetGO Cigar Assassin 2004 Mustang GT 12.88 @ 112 Join Date: Aug 2005 Location: A Galaxy Far, Far Away Posts: 13,890 iTrader: 10 reviews	you guys think it is that high?? weren't they 205 to the flywheel as it is? __________________ Cigar Samplers for Sale

September 26th, 2007, 01:34 PM	#8
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	yes. 225 at the motor is correct. 200 rwhp is a good guess based on your mods. __________________

September 26th, 2007, 09:11 PM	#9
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	In an auto, I would put money on you being right around 190. NO WAY your at 200 rwhp __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

September 26th, 2007, 01:19 PM	#4
my98stanggt Newbie Join Date: Sep 2007 Posts: 10 iTrader: 0 reviews	thanks..

September 26th, 2007, 01:25 PM	#6
my98stanggt Newbie Join Date: Sep 2007 Posts: 10 iTrader: 0 reviews	I was looking at the specs for them stock and it says 225hp. Is that at the motor?

September 26th, 2007, 09:13 PM	#10
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	Oh and I bet that what your feeling and whats chirping 2nd gear is a set of 4.10's. __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

September 26th, 2007, 11:34 PM	#13
jbm5781 Regular Join Date: Apr 2007 Location: Hattiesburg,MS Posts: 235 iTrader: 0 reviews	Honestly, I don't know if it would be the 4.10's or not. Unless my gears have been switched out (which I dont think they have)my stock 3.27's do the same thing. I have a 97 auto and it will chirp 2nd pretty damn hard. If i go through the gears, yea yea I know most people dont do this in an auto, it feels like its going to jump sideways. Granted I may be a little higher than 190 but still... I doubt its enough to equal his power plus 4.10's __________________ Who cares what your import looks like... They'll all be laughing at you at the finish line.

September 26th, 2007, 11:46 PM	#14
my98stanggt Newbie Join Date: Sep 2007 Posts: 10 iTrader: 0 reviews	I dont have to go threw the gears in order for it to chirp 2nd. I just put it in drive and nail it and there is goes. It does pull hard when it chirps also. How do I know what gears are in it? The previous owner did do some suspension mods as well.

September 27th, 2007, 12:05 AM	#16
jbm5781 Regular Join Date: Apr 2007 Location: Hattiesburg,MS Posts: 235 iTrader: 0 reviews	Do you know for sure that they have been changed out? I know there is a gear calculator for a manual but I dont believe there is one for an auto. Mine will also chirp 2nd if I nail it but thats because I have a few other upgrades (full catback exhaust, UD pullies, PI intake, MAF upgrade, CAI). You could possibly have 4.10's or 3.73's. What rpms do you run at 60 or any other mph you know of? __________________ Who cares what your import looks like... They'll all be laughing at you at the finish line.

September 27th, 2007, 12:13 AM	#18
my98stanggt Newbie Join Date: Sep 2007 Posts: 10 iTrader: 0 reviews	Just a guesstimate... Not spending money yet on a dyno pull. I dont know for sure that they have been swapped out. I just purchased the car and have no clue what was done to it besides what I stated above. I know that with O/D off and in 3rd gear going about 55mph my RPM's are at or around 2500-2600

September 27th, 2007, 12:19 AM	#19
jbm5781 Regular Join Date: Apr 2007 Location: Hattiesburg,MS Posts: 235 iTrader: 0 reviews	well, just for comparison, I have 3.27's stock and mine in o/d going 60 is usually setting right at 2k. Going 40, im right around 1300. If you decide you want to spend about $300 on a good mod, do yourself a favor and get a PI intake. It makes a HUGE difference on our cars, especially past 3k. Plus you'll get around 15-20 hp out of it __________________ Who cares what your import looks like... They'll all be laughing at you at the finish line.

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