better for power?

[tedness]

i'm getting a custom true dual setup on the mustang and wondered what the numbers i'm looking at are.

all aluminum with flowmaster 40's

[232stang01]

which numbers? gains vs. stock?

[STEVE]

no rteal gains, maybey 1- 2 hp, its mostly just for sound that it helps.

[SpectorV]

if you have a manual 165rwhp@5250 and 185rwtq@2800 thats about the most you can hope for

with an auto take off 5.5% from those numbers~ with dual exhaust expect 6rwhp/tq max

[97Stallion]

dual exhaust is a mod that allows for better airflow so hp is increased that way. So when you do more mods, your dual exhaust will allow for more hp to be made.

[cjd10]

very nicely put ^^

[NorwegianMustang]

What would longtubes and a catted mid-pipe and I'm thinking of Flowmaster (40's) make me?

4 hp?

[SpectorV]

Quote: Originally Posted by NorwegianMustang What would longtubes and a catted mid-pipe and I'm thinking of Flowmaster (40's) make me? 4 hp?

LTS maybe 5rwhp and you would lose a little tq at your peak about the same maybe a little more but higher up in the power band.

NO cats once again wotn help at all maybe a little hp but it will kill your down low power... it will move the tq peak up a good bit

all mufflers are about the same

[NorwegianMustang]

Quote: Originally Posted by SpectorV LTS maybe 5rwhp and you would lose a little tq at your peak about the same maybe a little more but higher up in the power band. NO cats once again wotn help at all maybe a little hp but it will kill your down low power... it will move the tq peak up a good bit all mufflers are about the same

So you gain some and lose some, but is it worth it?

(I'm thinking of staying NA)

[97Stallion]

Ya, it's worth it. 3.8 engine have kinda high toque. Well higher than any 4 cylinder so I'm sure you could spare a few tq for a few extra hp. And if you're that worried about tq, go with a 4.2 swap which will give you about 30 more tq and maybe 5 more 5hp too.

[NorwegianMustang]

Quote: Originally Posted by 97Stallion Ya, it's worth it. 3.8 engine have kinda high toque. Well higher than any 4 cylinder so I'm sure you could spare a few tq for a few extra hp. And if you're that worried about tq, go with a 4.2 swap which will give you about 30 more tq and maybe 5 more 5hp too.

Guess I got to do that after the full exhaust change, thanks man. Then the intakes, cam and heads.

[silverford96]

how much Hp and TQ would a 3.8 get if i had ported heads, intake, and new cams. How much would it cost?

[97Stallion]

Well what year 3.8 are we talking. Also you need to specify a cam. My 97 put out roughly 210 bhp and about 260 btq when i did my h/c/i swap. I went with a 216/225 cam then. Now I have a 224/230 cam, and a 4.2 w/ Bigger valve heads. That's how I have so much more hp. And i still have some work to do. I think once i get my new intake built with some long tubes I should easily have 300 bhp.