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

Vortech Bypass valve vacuum

  • Thread starter Thread starter Jack's95gt
  • Start date Start date Apr 5, 2009
J

Jack's95gt

Member
Aug 15, 2004
443
1
18
Huntingdon Valley, PA
Apr 5, 2009
#1
  • Apr 5, 2009
  • #1
Vortech's manual says to connect the vacuum line for the bypass valve to the manifold vacuum tee. I'm thinking that the bypass should open when the the throttle plate closes and the air pressure builds up agaist the throttle plate. When the throttle plate closes the manifold will quickly go into a vacuum anf the bypass valve wouldn't open.

Would it be better to connect the vacuum line for the the bypass valve before the throttle plate to sense the build up of pressure or am I wrong about this theory?
 
J

Jack's95gt

Member
Aug 15, 2004
443
1
18
Huntingdon Valley, PA
Apr 6, 2009
#2
  • Apr 6, 2009
  • #2
bump
 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end
15 Year Member
Nov 11, 2003
6,945
1,598
223
Northern KY
Apr 6, 2009
#3
  • Apr 6, 2009
  • #3
All you need to do is hook it up to a vacuum source. It doesn't matter how good the source, as long as it's a vacuum source. You're tapping into internal engine vacuum, not the vacuum of air going into the engine.
 
You must log in or register to reply here.

Similar threads

Forced Induction Bypass valve reference
  • JD1964
  • Jun 1, 2025
  • Fox 5.0 Mustang Tech
Replies
5
Views
430
Fox 5.0 Mustang Tech Jun 1, 2025
JD1964
P
I need definitive heater valve and AC expansion valve answers
  • PurAU
  • Sep 26, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
244
1965 - 1973 Classic Mustangs -General/Talk- Oct 1, 2026
GypsyR
G
Mustang II 4 cyl gear hunting and possibly messed up vacuum system
  • oesterreicher
  • May 31, 2026
  • 1974 - 1978 Mustang II Talk & Tech
Replies
11
Views
571
1974 - 1978 Mustang II Talk & Tech Jun 14, 2026
manicmechanic007
Forced Induction Bypass valve backwards?
  • Dontknowchit
  • Jun 25, 2025
  • Fox 5.0 Mustang Tech
Replies
3
Views
482
Fox 5.0 Mustang Tech Jun 29, 2025
JD1964
Vortech V3 Si - Bypass Valve to BOV swap issues
  • seanmahoney
  • Jun 26, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
852
SN95 4.6L Mustang Tech Jun 26, 2025
seanmahoney
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?