What to do to a 98 GT?

[MiamiFan1354]

Just got my hands on an old 98 GT. I had a 99, but I know there are differences with this engine, so what should I look into doing to the car. It's still stock down to the air silencer, and only has 26000 miles on it. I'm thinkin intake, TB, plenum, and then headers, x and catback. What else, after I get all that done, I'll look into a supercharger or something, but just wondering what other "bolt ons" people do with this year of a car..

 

[Gearbanger 101]

Add a set of 4.10-4.30 gears and save up for a nice centrifugal supercharger.

 

[tjm73]

gears, shifter, and save for a KB blower.

I have a shifter in mine and would like a KB and gears. It's a daily driver though, and gas is expensive enough.

 

[MiamiFan1354]

Wow, didn't even think about gears. Good one.. What shifter is everyone using? I have a pro 5.0 in my Cobra, but the new MGW one looks nice too

 

[Gearbanger 101]

What the crap....I could have swore this thread said "What to do to a 98 Cobra?" when I first responded to it?

 

[MiamiFan1354]

I didn't change it..

 

[tomustang]

it depends if you do want a s/c.

basic PI headswap with stock internals with a blower isn't a good idea.

 

[MiamiFan1354]

So not a great idea to supercharge a 98? Also, what manifold is a good one to use?

 

[o0akoni0o]

it's a perfectly fine idea to supercharge a '98, just not with pi heads on it due to a higher compression ratio.

 

[Gearbanger 101]

So not a great idea to supercharge a 98?

No, it's a fine idea, you just won't reap the benefits as much as you would with a '99-up without the head swap (and intake if you decide to use a centrifugal blower). Swapping the heads on a '96-'98 bumps the compression ratio up into the 10.4:1 range. This combined with the already sub-par strength of the stock bottom end doesn't exactly make them ideal for supercharging after the swap. But you'll still turn out decent numbers without....just not as good as a '99-up.

 

[SRT Handz]

Upr X Pipe
Flowmaster Cat Back
Lower the *****!!!

 

[squares98]

gears, shifter, and a cat back at first. .

 

[CanadaStang]

Do a P&P headswap and stick on a 100 shot NX. Rumour has it you'll be in the 12's.

 

[jamez1502]

if you got the money heads and intake.
if not gear and little stuff

 

[Gearbanger 101]

Do a P&P headswap and stick on a 100 shot NX. Rumour has it you'll be in the 12's.

That's your best bang for the buck, right there ^

 

[snGTstang]

p&p head swap, gears, i'd skip the pulleys, built motor, twin turbos....





btw i think i've seen your car around north east lately. or maybe its another black cobra with red cobra letters.

 

[MiamiFan1354]

Doubt it's me, I've only driven my car twice in the last 3 months

 

[mrvax]

See my sig for suggestions. My car is fun to drive now and has the power I need. (Not what I want.)

 

[MiamiFan1354]

If I wanted to do the FRPP PI heads and Bullet intake, what are the "additional modifications and parts" I would need?

 

[Na5.0HO]

No, it's a fine idea, you just won't reap the benefits as much as you would with a '99-up without the head swap (and intake if you decide to use a centrifugal blower). Swapping the heads on a '96-'98 bumps the compression ratio up into the 10.4:1 range. This combined with the already sub-par strength of the stock bottom end doesn't exactly make them ideal for supercharging after the swap. But you'll still turn out decent numbers without....just not as good as a '99-up.

Anyone with some basic numbers of a 96 - 98 GT with a stock longblock running boost... 8, 10 #'s??