Plug Gap

JohnnyG · 10-25-2001, 08:52 AM

I just ordered the McCarville tune up kit for my 91GT's long-overdue tune-up... and I'm embarrassed to say it, but I can't remember what I should gap the plugs to! I'm running a bone stock motor- I do, however, have the Crane PS-91 coil, which would lead me to believe I can open up that gap a little more. What do you guys recommend?

------------------
1991 GT Vert- Black/Black/Black
MAC 1 5/8" Headers, 2 1/2" H-pipe, 2 1/2" Flows, Tremec, Centerforce Dual Friction, BBK Adj. Quadrant, 3.73s, 3-core rad., K&N, PS-91, Tri-Ax, Blistein Struts/Shocks, H&R Springs, MM Chassis Brace Package, MM C/C Plates, Front-End Poly's, Rear Seat Delete

[This message has been edited by JohnnyG (edited 10-25-2001).]

slo95 · 10-25-2001, 09:08 AM

I shouldn't post this, because I am not completely sure, but seem to remember around a .052-.054 ? (at least for my 95)

had to edit, forgot the '0' infront...

[This message has been edited by slo95 (edited 10-25-2001).]

PKRWUD · 10-25-2001, 09:59 AM

Check your underhood sticker for the factory specs, but it will likely say .044". Don't go past .050".

Take care,
-Chris

------------------
Retired Moderator
MustangNet

My site: Peckerwoods Pit Stop

My teams site: Jim Porter Racing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN.

exgmguy · 10-25-2001, 03:44 PM

.045 will do.

------------------
1988 Mustang GT
11.8 @ 123 (7/14/01)
11.5 @ 120 (9/14/01)
1992 BadAzz Wrangler
1993 Explorer

See my car at: www.mustangworks.com/cgi-bin/moi-display.cgi?179

10-25-2001, 08:52 AM	#1
JohnnyG Registered Member Join Date: Feb 1999 Location: Baltimore, MD USA Posts: 105	Plug Gap I just ordered the McCarville tune up kit for my 91GT's long-overdue tune-up... and I'm embarrassed to say it, but I can't remember what I should gap the plugs to! I'm running a bone stock motor- I do, however, have the Crane PS-91 coil, which would lead me to believe I can open up that gap a little more. What do you guys recommend? ------------------ 1991 GT Vert- Black/Black/Black MAC 1 5/8" Headers, 2 1/2" H-pipe, 2 1/2" Flows, Tremec, Centerforce Dual Friction, BBK Adj. Quadrant, 3.73s, 3-core rad., K&N, PS-91, Tri-Ax, Blistein Struts/Shocks, H&R Springs, MM Chassis Brace Package, MM C/C Plates, Front-End Poly's, Rear Seat Delete [This message has been edited by JohnnyG (edited 10-25-2001).]

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10-25-2001, 09:08 AM	#2
slo95 Registered Member Join Date: Dec 2000 Posts: 168	I shouldn't post this, because I am not completely sure, but seem to remember around a .052-.054 ? (at least for my 95) had to edit, forgot the '0' infront... [This message has been edited by slo95 (edited 10-25-2001).]

10-25-2001, 09:59 AM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Check your underhood sticker for the factory specs, but it will likely say .044". Don't go past .050". Take care, -Chris ------------------ Retired Moderator MustangNet My site: Peckerwoods Pit Stop My teams site: Jim Porter Racing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN.

10-25-2001, 03:44 PM	#4
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	.045 will do. ------------------ 1988 Mustang GT 11.8 @ 123 (7/14/01) 11.5 @ 120 (9/14/01) 1992 BadAzz Wrangler 1993 Explorer See my car at: www.mustangworks.com/cgi-bin/moi-display.cgi?179