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

valve cover with 2 breathers

  • Thread starter Thread starter 9flat
  • Start date Start date May 7, 2004
9

9flat

New Member
Jan 8, 2003
22
0
0
May 7, 2004
#1
  • May 7, 2004
  • #1
does anyone have these on there car.i'am looking for a set for my car who makes them?
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
May 7, 2004
#2
  • May 7, 2004
  • #2
My question is why? you'll have a huge vacuum leak....they are generally for carbs cars. only carbed and boosted cars should have a breather. But not always, some have different setups.
 
8

87'GTstang

New Member
Feb 16, 2004
1,025
0
0
May 7, 2004
#3
  • May 7, 2004
  • #3
BlackFox5.0 said:
My question is why? you'll have a huge vacuum leak....they are generally for carbs cars. only carbed and boosted cars should have a breather. But not always, some have different setups.
Click to expand...

Ditto, only carb'd cars have them for the purpose of a breather element.
 

Mavrick

Founding Member
Aug 29, 2002
2,264
0
46
Collingwood, ON
May 7, 2004
#4
  • May 7, 2004
  • #4
You can use breathers on an EFI car, you just have to block off the tube that runs from your stock passenger valve cover to your TB. Might have to block other connections as well, im not too sure but somebody should know.
 
8

87'GTstang

New Member
Feb 16, 2004
1,025
0
0
May 7, 2004
#5
  • May 7, 2004
  • #5
Mavrick said:
You can use breathers on an EFI car, you just have to block off the tube that runs from your stock passenger valve cover to your TB. Might have to block other connections as well, im not too sure but somebody should know.
Click to expand...
But seriously, how clean and factory of a look does that appear afterwards? May as well just go for the EFI covers in the first place.
 

Mavrick

Founding Member
Aug 29, 2002
2,264
0
46
Collingwood, ON
May 7, 2004
#6
  • May 7, 2004
  • #6
87'GTstang said:
But seriously, how clean and factory of a look does that appear afterwards? May as well just go for the EFI covers in the first place.
Click to expand...

Ya, but they seem to be more expensive and not as common... around my area anyway.
 

89MustangGX

I have nothing productive to add!
Jul 3, 2001
10,262
1
0
Mill Creek, WA
May 8, 2004
#7
  • May 8, 2004
  • #7
BlackFox5.0 said:
My question is why? you'll have a huge vacuum leak....they are generally for carbs cars. only carbed and boosted cars should have a breather. But not always, some have different setups.
Click to expand...

I run open breathers on everything I have owned -- even my F150. I personally think it's better, though I can't point to any hard evidence that backs me up.
 

blown93feature

New Member
Dec 9, 2003
151
0
0
living on edge like the motor
May 8, 2004
#8
  • May 8, 2004
  • #8
running a breather set up is much more efficiant then a pcv valve because by having your crank case bled off back into your motor or running the valve cover tube running into your t/b is doing nothing but feeding crap back into the motor.I believe it robs some power as well so either having a breather or a oil catch can mounted off the valve cover or both for that matter is the way to go.I agree it's more previlate in a blowered car but none the less the same concept of crankcase pressure is still there and that hot gas by-product is still eveident with oil in the mess as well so why wouldn't it be better right?Most of my friends don't have pcv valves anymore the whole system is taken out of the loop and the hole is capped off and the valve cover line going back to the t/b is history and the only reason for filters on the valve covers is to help catch the oil spray.
 
You must log in or register to reply here.

Similar threads

G
Car Cover
  • gray owl
  • Monday at 4:18 PM
  • 2015 - 2023 (S550) Mustang -General/Talk
Replies
3
Views
54
2015 - 2023 (S550) Mustang -General/Talk Thursday at 11:58 AM
Bronco2fan
B
3
Bumper cover hardware?
  • 387lx
  • Apr 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
140
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 19, 2026
387lx
3
J
Valve cover leak
  • joetiii
  • May 13, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
322
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 14, 2025
General karthief
M
Resolved PCV Tube and Valve Cover Breather Hole Locations
  • MDrisc
  • Sep 11, 2024
  • Fox 5.0 Mustang Tech
Replies
3
Views
1K
Fox 5.0 Mustang Tech Sep 22, 2024
MDrisc
M
K
Resolved Need some assistance. Holley Terminator X alongside H/C/I. Very rough/inconsistent idle
  • karhoot
  • Jun 6, 2026
  • Fox 5.0 Mustang Tech
Replies
0
Views
85
Fox 5.0 Mustang Tech Jun 6, 2026
karhoot
K
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?