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

spark plug gap with super charger

  • Thread starter Thread starter lilnoee
  • Start date Start date Dec 23, 2007
L

lilnoee

New Member
Dec 4, 2007
8
0
0
Dec 23, 2007
#1
  • Dec 23, 2007
  • #1
I ave a 91 lx with a paxton sn 2000 supercharger (8#) and gt40p heads. Iwent and got some autolite 23's plugs. Ay advice on what i should gap them to?
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Dec 23, 2007
#2
  • Dec 23, 2007
  • #2
35 anymore and you could blow out the spark, or so ive heard.
 
L

lilnoee

New Member
Dec 4, 2007
8
0
0
Dec 23, 2007
#3
  • Dec 23, 2007
  • #3
.030 correct
 
L

lilnoee

New Member
Dec 4, 2007
8
0
0
Dec 23, 2007
#4
  • Dec 23, 2007
  • #4
i mean .035
 

BK_CAULEY

it's built for speed not longevity, woman
Dec 26, 2006
0
10
49
Thomasville, ga
Dec 23, 2007
#5
  • Dec 23, 2007
  • #5
thats what ive been told. dont hold me %100 to it but i firmly believe its right
 
L

lilnoee

New Member
Dec 4, 2007
8
0
0
Dec 23, 2007
#6
  • Dec 23, 2007
  • #6
alright thanks alot for the help
 

PUNISHER RACING

Active Member
Aug 27, 2007
1,124
0
36
FORD CITY, PA.
Dec 23, 2007
#7
  • Dec 23, 2007
  • #7
.032-.035
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Dec 23, 2007
#8
  • Dec 23, 2007
  • #8
There should have been that info in the installation manual from paxton. but .032 to .035 is correct.
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Dec 23, 2007
#9
  • Dec 23, 2007
  • #9
IIRC, stock should be around .054, but you should probably be under .045 with boost. Somewhere around .040 should be a good starting point, so you're not blowing out the spark.
 

Jason 302

10 Year Member
Aug 9, 2003
685
71
68
Newark, Ohio
Dec 23, 2007
#10
  • Dec 23, 2007
  • #10
StangGT1995 said:
IIRC, stock should be around .054, but you should probably be under .045 with boost. Somewhere around .040 should be a good starting point, so you're not blowing out the spark.
Click to expand...

Good advice, a full MSD setup can also help remedy "blowing the spark out". I was going to recommend mid .030's but I would say .040 is a good starting point as well.
 

Fast63

New Member
Sep 20, 2007
717
0
0
Dec 24, 2007
#11
  • Dec 24, 2007
  • #11
I think stock is .044
 
You must log in or register to reply here.

Similar threads

Fox Spark plugs
  • Mattjhop23
  • Jul 6, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
930
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 14, 2025
Reddevil91
R
89 supercharged LX idle/running issues
  • Robertstang
  • Mar 30, 2024
  • Digital Self-tuning Forum
Replies
3
Views
995
Digital Self-tuning Forum Apr 3, 2024
Robertstang
R
A
Spark plug gap
  • Al68
  • May 14, 2023
  • 1994 - 1995 Specific Tech
Replies
13
Views
5K
1994 - 1995 Specific Tech May 24, 2023
Noobz347
B
2001 roush stage 3 - sat for 5 years
  • Brando_05
  • Aug 26, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
235
1996 - 2004 SN95 Mustang -General/Talk- Aug 26, 2025
Brando_05
B
Engine GT40P questions and advice
  • sav22rem22
  • Mar 11, 2023
  • Fox 5.0 Mustang Tech
Replies
13
Views
4K
Fox 5.0 Mustang Tech Mar 31, 2023
sav22rem22
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?