• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Have question about ignition box install

  • Thread starter Thread starter str8stang036
  • Start date Start date Jan 8, 2004

str8stang036

New Member
Dec 28, 2002
1,382
0
0
Miami
Jan 8, 2004
#1
  • Jan 8, 2004
  • #1
I have a Mallory Hyfire VI ignition box ready for install, but I have a couple of questions. It has an RPM switch output. Does that go connected to the RPM instrument panel? Which wire does this connect to bck there?
 

bmorrisj

Member
Sep 26, 2003
449
0
17
Buena Park, CA
Mar 2, 2004
#2
  • Mar 2, 2004
  • #2
i think thats for an aftermarket tach, thats the rpm sigal wire for it...
 
R

RobbMc

New Member
Oct 3, 2003
19
0
0
Carson City, NV
Mar 3, 2004
#3
  • Mar 3, 2004
  • #3
str8stang036 said:
I have a Mallory Hyfire VI ignition box ready for install, but I have a couple of questions. It has an RPM switch output. Does that go connected to the RPM instrument panel? Which wire does this connect to bck there?
Click to expand...

That wire completes a ground when you hit a selected rpm. You use it when you want some electrical device (such as nitrous solenoid) to activate at a selected rpm. Below the selected rpm the wire is an open circuit.
 
You must log in or register to reply here.

Similar threads

S
Electrical No dash lights
  • slojoexxx
  • Dec 11, 2025
  • 1994 - 1995 Specific Tech
Replies
0
Views
183
1994 - 1995 Specific Tech Dec 11, 2025
slojoexxx
S
T
Electrical Brown Connector #31
  • ta66
  • Jul 26, 2026
  • Fox 5.0 Mustang Tech
Replies
2
Views
162
Fox 5.0 Mustang Tech Jul 30, 2026
ta66
T
C
Electrical HELP! 1989 5.0 Stick, Voltage Bleed onto Ignition Trigger wire
  • ChickenDeluxe
  • May 14, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
327
Fox 5.0 Mustang Tech May 24, 2026
ChickenDeluxe
C
Ignition Question
  • WantAn88GT
  • Sep 12, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
195
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 13, 2026
WantAn88GT
L
Electrical problems with passenger side downstream o2 sensor
  • Lexiii12
  • Sep 14, 2026
  • 2005 - 2014 S-197 Mustang -General/Talk-
Replies
0
Views
90
2005 - 2014 S-197 Mustang -General/Talk- Sep 14, 2026
Lexiii12
L
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific 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?