3.73s or o/r H pipe?

black 96 gt

New Member

Jun 10, 2008

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solon, ohio

Mar 3, 2010

#1

• Mar 3, 2010

• #1

I've got a 2004 Mustang GT and was wondering which one of these mod's would show the best improvement at the track? I'm basically stock other than a CAI. The track open's at the end of the month and I'm hoping to start the year off in the high 13's.

 

johnnyt03gt

5 Year Member

Mar 15, 2008

453

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dallas TX

Mar 3, 2010

#2

• Mar 3, 2010

• #2

h-pipe, gotta have that.'mustang' sound

 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!

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Nov 29, 1999

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H Town

Mar 3, 2010

#3

• Mar 3, 2010

• #3

http://www.stangnet.com/mustang-forums/746653-1-4-mile-track-progress.html

Gears will wake the 2v up quite a bit. The PI 2v lacks the torque that you might be used to. Gears will wake your car up quite a bit, and get your car in to the powerband quicker.

If you are racing your car at the track on street tires, 3.73's will help you out if you can slip the clutch and get traction. The one problem with this gear is, you will be shifting the car from 3-4 right before the traps. It is really not the best gear for the 1/4. I would suggest 4.10's for the track with a drag radial.

An offroad H Pipe is worth a solid .1-.2 gain, and 1-2mph in the quarter. You will gain 5-10rwhp, and you will drop quite a bit of weight over the stock mid pipe.

I would start out with the h pipe. You will gain ET and MPH, and will like the improved sound, which I am sure you are aware of. Gears would be the next mod after the mid pipe, followed by pulleys and a timing adjuster.

With an offroad h pipe, gears, pulleys, timing adjuster, and drag radials, you will have a low 13 second car.

 

N

ninjastang125

New Member

Nov 1, 2008

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maryland

Mar 3, 2010

#4

• Mar 3, 2010

• #4

You need mods to get a p.i car to 13's. You need the mod that you cant buy in store and that is practice.

 

D

Deleted member 38176

Mar 3, 2010

#5

• Mar 3, 2010

• #5

Dont waste your money on 3.73's.....after only a day you'll be saying, "WHY THE HELL DIDNT I GET 4.10's"

 

black 96 gt

New Member

Jun 10, 2008

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solon, ohio

Mar 3, 2010

#6

• Mar 3, 2010

• #6

Winters98GT said:

http://www.stangnet.com/mustang-forums/746653-1-4-mile-track-progress.html

Gears will wake the 2v up quite a bit. The PI 2v lacks the torque that you might be used to. Gears will wake your car up quite a bit, and get your car in to the powerband quicker.

If you are racing your car at the track on street tires, 3.73's will help you out if you can slip the clutch and get traction. The one problem with this gear is, you will be shifting the car from 3-4 right before the traps. It is really not the best gear for the 1/4. I would suggest 4.10's for the track with a drag radial.

An offroad H Pipe is worth a solid .1-.2 gain, and 1-2mph in the quarter. You will gain 5-10rwhp, and you will drop quite a bit of weight over the stock mid pipe.

I would start out with the h pipe. You will gain ET and MPH, and will like the improved sound, which I am sure you are aware of. Gears would be the next mod after the mid pipe, followed by pulleys and a timing adjuster.

With an offroad h pipe, gears, pulleys, timing adjuster, and drag radials, you will have a low 13 second car.

Click to expand...

You answered my question and more. I think your right about the H pipe being the best choice. The car is a little to quiet for me anyways. As for the gears would the 3.73s do anything in the 1/4? 4.10s are a little too much for all the highway driving i do. Thanks for the info.

 

black 96 gt

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Jun 10, 2008

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solon, ohio

Mar 3, 2010

#7

• Mar 3, 2010

• #7

Nightfire said:

Dont waste your money on 3.73's.....after only a day you'll be saying, "WHY THE HELL DIDNT I GET 4.10's"

Click to expand...

That's what I'm afraid of. I just don't know if i want to lose all the top end.

 

Kornnut

Founding Member

Nov 25, 2000

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108

Tulsa

Mar 3, 2010

#8

• Mar 3, 2010

• #8

Gears

More cost up front but way better seat of the pants.

 

J

jeffstanggt04

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Apr 1, 2005

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Mar 3, 2010

#9

• Mar 3, 2010

• #9

4.10s really arent that bad on the i-state with the low overdrive of 5th, mine pushes around 2500 doing 70mph

 

D

Deleted member 38176

Mar 3, 2010

#10

• Mar 3, 2010

• #10

black 96 gt said:

That's what I'm afraid of. I just don't know if i want to lose all the top end.

Click to expand...

The difference in top-end performance between 4.10's and your STOCK gears is not much at all. The difference in top-end between 3.73's and 4.10's is neglegable.

Besides, its not how fast you can go.....its how fast you can get there.

DONT FEAR THE GEAR

 

98COBRA281

10 Year Member

Nov 24, 2007

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Port St. Lucie, Florida

Mar 3, 2010

#11

• Mar 3, 2010

• #11

Nightfire said:

DONT FEAR THE GEAR

Click to expand...

+1 i have 4.30's now, and might go to 4.56's or 4.88's, with my 430's, the car will still do 150+mph....

 

Rickyll7

Member

Dec 16, 2005

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19

Mar 4, 2010

#12

• Mar 4, 2010

• #12

98COBRA281 said:

+1 i have 4.30's now, and might go to 4.56's or 4.88's, with my 430's, the car will still do 150+mph....

Click to expand...

If you rev past 6k...

 

G

GettinThere

Member

Jul 29, 2005

553

1

19

Central Texas

Mar 4, 2010

#13

• Mar 4, 2010

• #13

Nightfire said:

Dont waste your money on 3.73's.....after only a day you'll be saying, "WHY THE HELL DIDNT I GET 4.10's"

Click to expand...

+1

jeffstanggt04 said:

4.10s really arent that bad on the i-state with the low overdrive of 5th, mine pushes around 2500 doing 70mph

Click to expand...

In 5th, at 75 mph I'm at 2500 rpm. Easy to remember, 75 at 25.

To the OP, start with the h pipe. Cheap to buy, easy to install, and will give us time to convince you that 4.10 gears really are better than 3.73s

 

P

peepeeskillz

New Member

Mar 23, 2009

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texas

Mar 4, 2010

#14

• Mar 4, 2010

• #14

Rickyll7 said:

If you rev past 6k...

Click to expand...

with 4.10s my car will still do 150mph at 5k...

 

32ValveRom

Member

Feb 15, 2009

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Fl

Mar 4, 2010

#15

• Mar 4, 2010

• #15

98COBRA281 said:

+1 i have 4.30's now, and might go to 4.56's or 4.88's, with my 430's, the car will still do 150+mph....

Click to expand...

4.88s? That is one I didn't even know existed.

Op, keep in mind when you get gears you have to reflash your Ecu. But If I were you I'd get the gears first. I'd save the H-pipe for when you're getting headers.

 

1low03gt

20+ Year Stangneter

May 24, 2004

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Cold Hell,Ontario,Canada!!

Mar 4, 2010

#16

• Mar 4, 2010

• #16

I say neither!!!
4.10's will be your best investment.

98COBRA281 said:

+1 i have 4.30's now, and might go to 4.56's or 4.88's, with my 430's, the car will still do 150+mph....

Click to expand...

This is my plan down the road.4.30's to replace my 4.10's.

 

A

Autographx

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Feb 25, 2010

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Mar 4, 2010

#17

• Mar 4, 2010

• #17

When in doubt, get both.

 

black 96 gt

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Jun 10, 2008

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solon, ohio

Mar 4, 2010

#18

• Mar 4, 2010

• #18

Well, I think I'm going to end up buying the H pipe first. It seems like the perfect mod for the price right now. But you guys have convinced me to go with 4.10s when the time comes. Thanks for the inputs.