• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Does the gt-40 tubular have egr?

  • Thread starter Thread starter GT89Mustang
  • Start date Start date Jan 4, 2006
G

GT89Mustang

New Member
Mar 31, 2005
0
0
0
Monmouth County, NJ
Jan 4, 2006
#1
  • Jan 4, 2006
  • #1
Pretty much what the title says, is the lower set up for egr? I want to get one but I need to keep all the emissions stuff hooked up.

:SNSign:
 

thumper460

Founding Member
Jul 24, 2000
3,022
2
56
Orange Park , Fl
Jan 4, 2006
#2
  • Jan 4, 2006
  • #2
need to look at the heads!! SOME GT40s do NOT have the air hole in the heads... some do!! look at the heads befor you buy... or they can be drilled at a shop, just cost more... cool??
Just me.............................

Thumper
 
G

GT89Mustang

New Member
Mar 31, 2005
0
0
0
Monmouth County, NJ
Jan 4, 2006
#3
  • Jan 4, 2006
  • #3
Im talking about the intake manifold. Doesnt the stock lower have an egr passage? If I were to get the FMS gt40 tublar intake does the lower have the egr passage?
 

Michael Yount

Mustang Master
Apr 10, 2002
9,039
6
79
Charlotte, NC
Jan 4, 2006
#4
  • Jan 4, 2006
  • #4
It depends on what the lower intake came off of. If it came off of a Cobra or an early Explorer/Mountaineer (96/early 97) it should have the internal egr passages (round hole in the very center of the upper/lower interface). If it came off of a GT40P headed Exp/Mount. then the lower won't have the egr passage.

You'll also find variations with regard to whether there's a drilled/tapped hole or an undrilled boss or nothing at all in the #5 runner for the ACT sensor; and whether or not it's drilled/tapped for the EGR coolant return line.
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Jan 5, 2006
#5
  • Jan 5, 2006
  • #5
can't a machine shop just machine the intake as well? Why not just run the take without the egr passages?
 

Maryland Stang

Active Member
Aug 21, 2002
1,656
30
39
Greenville, NC
Jan 5, 2006
#6
  • Jan 5, 2006
  • #6
To answer the question, "Does the gt-40 tubular have egr?"

Yes, it does.

BTW guys, there is only one GT-40 intake. The rest are just wanna-be's.
 

Michael Yount

Mustang Master
Apr 10, 2002
9,039
6
79
Charlotte, NC
Jan 5, 2006
#7
  • Jan 5, 2006
  • #7
The cast Cobra and Explorer uppers, and GT40 tubular UPPER all share the same "GT40" lower....
 

jackchan

New Member
Oct 17, 2004
507
0
0
Mobile Alabama
Jan 5, 2006
#8
  • Jan 5, 2006
  • #8
The cast Cobra and Explorer uppers, and GT40 tubular UPPER all share the same "GT40" lower....
Click to expand...

according to some sources the lowers on some of the later model (98-2001)"P" headed lowers are actually cast a little different and actually flow a bit more....but dont take my word for it.......do some diggin!
Jack
 

Maryland Stang

Active Member
Aug 21, 2002
1,656
30
39
Greenville, NC
Jan 5, 2006
#9
  • Jan 5, 2006
  • #9
Michael Yount said:
The cast Cobra and Explorer uppers, and GT40 tubular UPPER all share the same "GT40" lower....
Click to expand...

Yes they do. It does appear though that Ford is all out of the GT-40 intake package. Neither Summit or Jegs has any. I wonder if they'll attempt to build them in China too?
 

Michael Yount

Mustang Master
Apr 10, 2002
9,039
6
79
Charlotte, NC
Jan 5, 2006
#10
  • Jan 5, 2006
  • #10
Chan - tmoss can tell you for sure -- but I don't think there's any difference in the castings from a flow perspective over the years. Of course you'll have small variations from intake to intake. Perhaps what you've heard is more directly related to the P head itself -- a definite improvement over the GT40 iron which it superseded.
 

jackchan

New Member
Oct 17, 2004
507
0
0
Mobile Alabama
Jan 5, 2006
#11
  • Jan 5, 2006
  • #11
that could be true. A (buddy) racer who has had serveral lower's flowed (explorer, Gt-40, and cobra lowers) on a superflow flow bench......told me that the lower for the "P" headed engines on explorer's did have some runner changes in later 90's explorer intakes to better match the P cylinder head runners. Now I don't believe he would just say something if it wasn't true....We were in a discussion of which intake upper and lowers were better out of the cobra, explorer, and GT-40. which also led into the conversation about the lowers as well. He seemed to think the GT-40 upper didnt flow slightly as much as the Cobra but that the GT-40 upper with its tubular upper runners had a better cooling advantage over the very sold build (and capable of holding in heat more) which could be to more of an advantage than the slight difference in flow. The explorer upper intake came in third.....but only slightly behind the GT-40.

now on the lowers, they are all pretty much the same but the later explorer lowers are claimed to flow a slight more, which could very possibly be because of newer dies for casting, but which could also be from a slight refined two front runner section such as my buddy suggested.

As for the intakes being cast in China, they are now unfortunetly......in fact there was a post on here about a guy with a china cast upper and lower un-polished cobra aftermarket intake from FRPP. now that part sucks....Made is USA just isnt what is use to be!
Jack
 

5.0 Nostalgia

10 Year Member
Feb 28, 2003
904
5
39
CT
Jan 5, 2006
#12
  • Jan 5, 2006
  • #12
Yes, the tubular GT-40 does have the EGR hookup.
 

Maryland Stang

Active Member
Aug 21, 2002
1,656
30
39
Greenville, NC
Jan 5, 2006
#13
  • Jan 5, 2006
  • #13
jackchan said:
As for the intakes being cast in China, they are now unfortunetly......
Click to expand...

I was referring to the GT-40 intake package. The GT-40 upper isn't cast anywhere as you know.

Although I don't have one and there isn't one in my plans I beleive the GT-40 intake to easily be the best looking of the three. When you pop the hood and look at all of those tubes it just has a look of exoticism (is that a word?) that the cast manifolds will never have.
 
You must log in or register to reply here.

Similar threads

9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
918
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
D
Question about EGR valve, replacement, and a part on the valve.
  • DPP
  • May 9, 2026
  • SN95 V6 Mustang Tech
Replies
1
Views
132
SN95 V6 Mustang Tech May 23, 2026
DPP
D
S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
868
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
Engine Cleaning Intake valves with lower intake off
  • R82148V
  • Mar 4, 2026
  • Fox 5.0 Mustang Tech
Replies
13
Views
444
Fox 5.0 Mustang Tech Mar 11, 2026
limp
M
Engine Unexplainable Exhaust Pop and Gurgle
  • Mrnissen122
  • Feb 14, 2026
  • Fox 5.0 Mustang Tech
Replies
12
Views
575
Fox 5.0 Mustang Tech Feb 18, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?