Throttle Body

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Ts1lightning63

Member

Jul 13, 2017

39

1

8

Canfield

Mar 7, 2018

#1

• Mar 7, 2018

• #1

I have a 2004 GT with cat deletes, chip, x pipe, k- n air intake and 373 gears with an automatic. Is there any benefit to changing the throttle body for a bigger one?

 

rancorkeeper

Founding Member

Mar 19, 2001

484

13

39

Palos Heights, IL (Chicago suburb)

Mar 9, 2018

#2

• Mar 9, 2018

• #2

What do you mean by "chip?" In my opinion, unless you change the timing for 93 octane or higher, a larger tb isn't going to do anything noticeable with your exhaust mods.

 

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Ts1lightning63

Member

Jul 13, 2017

39

1

8

Canfield

Mar 9, 2018

#3

• Mar 9, 2018

• #3

rancorkeeper said:

What do you mean by "chip?" In my opinion, unless you change the timing for 93 octane or higher, a larger tb isn't going to do anything noticeable with your exhaust mods.

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It has a Bama chip that changes timing, shifting points and octane requireKent’s.

rancorkeeper said:

What do you mean by "chip?" In my opinion, unless you change the timing for 93 octane or higher, a larger tb isn't going to do anything noticeable with your exhaust mods.

Click to expand...

Bama 4 bank eliminator chip.

 

Neuron

5 Year Member

Nov 6, 2016

859

192

93

Mar 10, 2018

#4

• Mar 10, 2018

• #4

No, the main restriction is the manifold I am told.

 

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Ts1lightning63

Member

Jul 13, 2017

39

1

8

Canfield

Mar 11, 2018

#5

• Mar 11, 2018

• #5

Neuron said:

No, the main restriction is the manifold I am told.

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Which one would you recommend?

 

Neuron

5 Year Member

Nov 6, 2016

859

192

93

Mar 11, 2018

#6

• Mar 11, 2018

• #6

Ts1lightning63 said:

Which one would you recommend?

Click to expand...

Stick with stock unless camming or supercharging.

 

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Ts1lightning63

Member

Jul 13, 2017

39

1

8

Canfield

Mar 11, 2018

#7

• Mar 11, 2018

• #7

Neuron said:

Stick with stock unless camming or supercharging.

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No plans yet to cam or supercharge. Would you add headers to my mods?

 

Neuron

5 Year Member

Nov 6, 2016

859

192

93

Mar 12, 2018

#8

• Mar 12, 2018

• #8

Ts1lightning63 said:

No plans yet to cam or supercharge. Would you add headers to my mods?

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From what I have gleaned from searches, Mustang Forums(6) shorty headers give little real gain but long tube do. I believe on Auto's they are a real bitch( I think I read that OP recommended lifting engine) to install and service your starter. Myself I would just save up and supercharge if I wanted any real feel of that extra go power. Sure headers will still help and other parts but just a supercharger tuned right will give you a real kick in pants. If you get a tune and don't push the envelope the engine and tranny should last. I have seen differing opinions but many OP have said with the right tune you can get by with stock injectors.

 

Mattstang04

15 Year Member

Sep 15, 2006

1,152

144

104

St. Louis, MO

Mar 14, 2018

#9

• Mar 14, 2018

• #9

Long tube headers are good boost in power. Probably about 15 hp to the wheels. To do them you will have to get a tune and either get a mid pipe that will fit it or cut and weld your existing mid pipe. It will require O2 sensor extenders. The task is a bit difficult but I have done a couple sets using an engine brace while dropping the K-member and front suspension off the car. After the money spent and the power per dollar and effort, you'll be hard pressed to find anyone that recommends shorty headers.

Still its cheaper than supercharging but will not reap the huge power gains and ear to ear grins. Makes the car sound real good but so does blower whine.

Full disclosure I have longtubes on my Mach 1. Love them. Haven't supercharged yet but my car is a long term build as long as I don't wreck it. My old 04 GT was Procharged with full exhaust and put 400 to the wheels. Drove the car hard for probably 25k miles until the day it chipped a piston and I took it all apart and sold everything.

 

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UndercoverGT

New Member

Mar 19, 2018

6

1

1

Mar 19, 2018

#10

• Mar 19, 2018

• #10

If you do a throttle body and upper intake you will have better throttle response but not more hp gains unless you have supporting mods. I went with a summit 78mm with matching plenum and noticed a big difference off the line. Automatic with stock manifolds ...no cats

 

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Thatsweetstang

Active Member

Nov 4, 2013

224

24

39

Ca

Mar 21, 2018

#11

• Mar 21, 2018

• #11

If you’re not doing forced induction I wouldn’t spend a dime on headers and throttle body until you put a supercharger on it. If I’m not mistaken a used vortech or pro charger will push more power than the stock engine can take. I don’t believe the throttle body, intake, or exhaust manifolds are a restriction until you start going above 500hp which the engine can’t do. So if it was me doing it, I’d supercharge it before adding anything else. Then work the suspension.

 

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