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

Cut a swirl in the EGR?

  • Thread starter Thread starter C6AE
  • Start date Start date Feb 27, 2007
C

C6AE

Member
Mar 22, 2004
145
1
17
Ma.
Feb 27, 2007
#1
  • Feb 27, 2007
  • #1
Think it would make a difference?
I have a 65mm TB, and a 67mm EGR to put on my stock intake. I noticed the opening on the intake is only 63.5mm, might just open that up too.

We used to do stuff like that to our bikes when I was racing them thinking that the additional air motion would help atomize the gas , different air/fuel delivery system here though...

Sometimes it's good to work in a machine shop
 

TheBocSez

New Member
Feb 3, 2004
652
0
0
Converse, TX
Feb 27, 2007
#2
  • Feb 27, 2007
  • #2
I know that Motorvation sells a spacer with the swirl design cut into it. I just don't think it would make much if any difference.

As it passes the EGR down the straightaway, the air goes into a large opening at the back of the intake and is drawn into individual runners, then into the lower intake. By the time It reaches the area of the injectors to be mixed with fuel. I think it would have lost most if not all of its twisting effect.

Maybe I'm wrong.
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
Feb 27, 2007
#3
  • Feb 27, 2007
  • #3
With all the activity with in the lower intake, the motorvation will have no impact on airflow.
Cutting in a swirl pattern may have an affect, IF it is done just before the valve.
To my knowledge this has never been tried...

jason
 
F

freakazoid

New Member
Apr 13, 2001
22
0
1
El Paso, Texas
Feb 27, 2007
#4
  • Feb 27, 2007
  • #4
Air Intake Swirl

I believe the Tornado creates a vortex in the intake track. It looks like a sheet metal device with vanes that create the swirl.
 

NKau

Founding Member
Dec 15, 2001
1,346
0
37
Jefferson, WI
Feb 27, 2007
#5
  • Feb 27, 2007
  • #5
It won't do squat.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,259
17,943
224
Massachusetts
Feb 27, 2007
#6
  • Feb 27, 2007
  • #6
The air won't be in the EGR spacer long enough to do anything. All the swirls will do is create turbulence slowing the air down, not really spin it like a vortex.

You are better off polishing it inside than swirling it.
 

modusmortis

Member
Aug 3, 2006
54
0
6
Feb 27, 2007
#7
  • Feb 27, 2007
  • #7
just port match your stock upper intake to the egr
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Feb 27, 2007
#8
  • Feb 27, 2007
  • #8
freakazoid said:
I believe the Tornado creates a vortex in the intake track. It looks like a sheet metal device with vanes that create the swirl.
Click to expand...

And it causes an intake restriction. It's actually been shown to cause you to lose power because of it. Plus, any swirl effect is lost once it goes into the upper plenum.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,259
17,943
224
Massachusetts
Feb 27, 2007
#9
  • Feb 27, 2007
  • #9
Swirls sometimes cause the flud in question to flow slower. Ever notice that your bathtub drains slower if the water swirls around the drain vs breaking the swirl up and letting the water drain down on it's own straight in.

I know it's not technically the same idea however.
 
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