How Much HP Should I Really Have On 98 GT?

98GTBlkConv

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May 26, 2004

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Jul 8, 2004

#1

• Jul 8, 2004

• #1

Hey guys. I have only made a few mods to my 1998 GT convertible including FM catbacks and K&N FIPK. Realistically speaking, how much rph should I have? I have never had the car on a dyno, and am wondering what the real amount should be. Also, I am considering an Accufab plenum and throttle body. Should I go with 75 or 70 mm for this sohc? Is it worth doing? I am also serious about buying a Superchips microtuner, and am wondering if I do all of this, will I feel a difference? I have recently done the 3.73's and will stay na for a while. What do you think?

 

DBMSTNG

I fantasize about it being BIG!

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#2

• Jul 8, 2004

• #2

170-180rwhp.

 

9

96stanggt-vert

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Jan 2, 2003

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#3

• Jul 8, 2004

• #3

170-180? How, he has about 190 stock You might get 7-10 rwhp from the catback and intake so my guess would be about 200 rwhp as you sit.

 

Teen'93stang5.0

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#4

• Jul 8, 2004

• #4

damn, ive got an o/r h pipe, flowmasters, etc with a K&N and your telling me i havent broken 200rwhp........i need those heads NOW

 

DBMSTNG

I fantasize about it being BIG!

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#5

• Jul 8, 2004

• #5

96stanggt-vert said:

170-180? How, he has about 190 stock You might get 7-10 rwhp from the catback and intake so my guess would be about 200 rwhp as you sit.

Click to expand...

unless the 96-98's have an extremely restrictive catback, unlike the 99+'s, you aren't going to pick up much, if any power from a cat-back.

 

WLD_WST

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#6

• Jul 8, 2004

• #6

just pay for a dyno run and find out

 

J

Joel's98GT

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Jan 3, 2004

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central OH

Jul 8, 2004

#7

• Jul 8, 2004

• #7

Yeah it's impossable to get above 200hp or even a respectable timeslip out of a 96-98 turd-mobile.

 

Saleen201

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#8

• Jul 8, 2004

• #8

96stanggt-vert said:

170-180? How, he has about 190 stock

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I had 190 on the dot with full exhaust (LTs, O/R H, Borla Cat-back), K&N air filter, and Saleen factory tune. so i think 170-180 is pretty accurate.

I also agree with WLD WST, just pay for the dyno run. It usually isnt much just to get a run or two without any tune.

WLD WST, did you get the balancer?

-Mike

 

LI98GTStang

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#9

• Jul 8, 2004

• #9

Joel's98GT said:

Yeah it's impossable to get above 200hp or even a respectable timeslip out of a 96-98 turd-mobile.

Click to expand...

Yeah. (Shhhhh.....)

 

gruntman31

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Jul 8, 2004

#10

• Jul 8, 2004

• #10

LI98GTStang said:

Yeah. (Shhhhh.....)

Click to expand...

People ask me if my stang has had the headswap done. I say no, I don't have PI heads. They laugh at my 15 second turd. Then we run for money and I win.

 

Saleen201

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#11

• Jul 8, 2004

• #11

gruntman31 said:

People ask me if my stang has had the headswap done. I say no, I don't have PI heads. They laugh at my 15 second turd. Then we run for money and I win.

Click to expand...

nice!!

 

bierbelly

Dirty Old Men Need Love Too

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Jul 8, 2004

#12

• Jul 8, 2004

• #12

OK, I had my '98 dynoed when it was completely stock except for a K&N. It dynoed at 196 RWHP. I doubt the K&N added anything. Neither will a cat back, no matter what the advertisement said.

 

NewStangNewbee

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Jul 2, 2004

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Jul 8, 2004

#13

• Jul 8, 2004

• #13

What rwhp do i have with full pi head intake swap?

 

M

Mo-Tang

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Missouri

Jul 8, 2004

#14

• Jul 8, 2004

• #14

numbers in sig.

 

kboy262

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Apr 20, 2003

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Atlanta-Kennesaw

Jul 8, 2004

#15

• Jul 8, 2004

• #15

The 98 year mustang usually dynos a few more rwhp (5-8) then the 96-97 with the so-called more aggresive tune from Ford. I have Comp Cams and other bolt-ons I better be making more than 180rwhp.

 

NiteRydaGT

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Long Island, NY

Jul 9, 2004

#16

• Jul 9, 2004

• #16

Joel's98GT said:

Yeah it's impossable to get above 200hp or even a respectable timeslip out of a 96-98 turd-mobile.

Click to expand...

 

S

stimmler

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Mar 21, 2002

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Jul 9, 2004

#17

• Jul 9, 2004

• #17

98GTBlkConv said:

Also, I am considering an Accufab plenum and throttle body. Should I go with 75 or 70 mm for this sohc? Is it worth doing? I am also serious about buying a Superchips microtuner, and am wondering if I do all of this, will I feel a difference? I have recently done the 3.73's and will stay na for a while. What do you think?

Click to expand...

Do the tuner before the the plenum and tb. If you are going for the headswap don't get the tuner, not sure it will work after the swap. Custom chip would probably be better post swap.

 

S

stimmler

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Mar 21, 2002

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#18

• Jul 9, 2004

• #18

superchips programmer won't fix speedo's on 98's either. Found out the hard way.

 

9

98SteedaStang

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Dec 11, 2002

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Chicago Suburbs

Jul 9, 2004

#19

• Jul 9, 2004

• #19

With all my mods, except for the PI heads I put down 189. Mine is an auto.

 

kboy262

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Apr 20, 2003

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Atlanta-Kennesaw

Jul 9, 2004

#20

• Jul 9, 2004

• #20

The auto is killing your hp. The only thing that is helping you is the Bassani x-pipe.