• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

spark plugs

  • Thread starter Thread starter wht99gtconv
  • Start date Start date May 4, 2007
W

wht99gtconv

New Member
Dec 1, 2003
267
0
0
May 4, 2007
#1
  • May 4, 2007
  • #1
What is the best plug to run on a supercharged 99 mustang gt. Also what gap.
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
May 4, 2007
#2
  • May 4, 2007
  • #2
wht99gtconv said:
What is the best plug to run on a supercharged 99 mustang gt. Also what gap.
Click to expand...

in Motorcraft, either AGSF-22C's (1 step down from stock) or AWSFA-12C's (2 steps down from stock).

plug gap you'll have to play wth, I've seen as little as .028 on up to .036
 

Blinkstang

Member
Apr 2, 2005
316
0
16
Chicago, IL
May 4, 2007
#3
  • May 4, 2007
  • #3
I've got NGK TR-6's gapped at .028 as recommended by my tuner.
 
T

thomas91169

I'd donkey punch my sister.
Aug 19, 2005
0
0
0
Modesto, CA
May 4, 2007
#4
  • May 4, 2007
  • #4
NGK TR6 or TR5 gapped at .028 for your application.
 
W

wht99gtconv

New Member
Dec 1, 2003
267
0
0
May 4, 2007
#5
  • May 4, 2007
  • #5
Could I use a Autolite plug and gap it at .028
 
You must log in or register to reply here.

Similar threads

P
Resolved Spark plug location
  • Ptanner
  • May 17, 2026
  • 2024+ (S650) Mustang -General/Talk
Replies
1
Views
241
2024+ (S650) Mustang -General/Talk May 18, 2026
Ptanner
P
M
Idle problem
  • miser143
  • Oct 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
184
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 11, 2026
CAMTWO1070
For Sale Fox BRAND NEW Motorcraft spark plugs, wires and hood prop rod clips
  • Ricomondo
  • Sep 6, 2026
  • Engine and Power Adder
Replies
0
Views
248
Engine and Power Adder Sep 6, 2026
Ricomondo
96 GT 4.6 w/ dirty spark plug well
  • Mustang Momma
  • Apr 7, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
3
Views
204
1996 - 2004 SN95 Mustang -General/Talk- Apr 9, 2026
LILCBRA
M
Help! 2003 GT misfire when hot
  • Modular03
  • Feb 10, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
603
SN95 4.6L Mustang Tech Feb 13, 2026
Mustang5L5
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L 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?