Spark Plug List For Mustangs

Casper98GT · May 9th, 2007, 03:38 PM

Credit given to ALLMTR2V on the corral forums.

MOTORCRAFT
AWSF-32C / stock heat range - copper plug
AWSF-22C / 1 Heat range colder - copper plug
AWSFA-12C / 2 Hea range cooler - copper plug
AGSF-32C/ Recommended for FRPP heads(not sure on heat range)

NGK
TR-55/ 3951/ Stock Heat Range
TR-6/ 4177/ 1 Step Colder
BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps
R5724-8 (PN - 7317) two and a half steps
R5724-9 (PN - 7891) three steps
R5724-10 (PN - 7993) four steps

AUTOLITE
764s / Stock
103s / 1 heat range cooler
AR94 / 2 heat range cooler
AR93 / 3 heat range cooler
AR92 / 4 heat range cooler

CHAMPION
YS-59C / -3 or -4 below stock heat range

DENSO
IT16 / stock heat
IT20 / -1 heat range
IT22 / -2 heat range
IT24 / -3 heat range

itschristorres8 · June 17th, 2007, 12:29 PM

im guessing this is for only v8s
cause autolite stocks are 765...
all v6s are just a number up or down i believe

i also hear that u dont really wana use NGK on a mustang to stick with motocraft or autolite

ChrisJ · June 17th, 2007, 03:06 PM

Got the same info from MPH as well...I posted it in the 99-04 section...This is for the V8 Mod Engines...

SWEET2KSTANG · June 18th, 2007, 08:14 AM

i run champion plugs in my car. i had the 304's which is one stage colder and now i run the 344's which are 2 stages colder.

03 R Code · June 18th, 2007, 10:10 AM

I run the NGK plug (TR-6's) and haven't had any problems out of those. I change them after about every 5-6 bottles...Just in cases!

mmustangsrus · July 1st, 2007, 12:22 PM

i run ngk tr6ix`s in my cobra & they are awesome &

they are the "recomened" plug for a supercharged mustang !!!!!!

Stagray · July 22nd, 2007, 03:04 AM

Is it possible to run higher heat stages on a stock motor and not hurt anything?

PonyXpress · August 5th, 2007, 02:44 PM

nobody likes the bosch platinum+4's?

The eaglenator · August 19th, 2007, 03:57 PM

How often should I change my plugs? I've got a 2000 GT V8 4.6 liter. All stock except for a CAI. Thanks

DaNnY · September 3rd, 2007, 08:40 PM

I worked for Autozone a while back, and almost every single Bosch +2 or +4 that we sold, the customer almost always came back with fouled plugs, check engine light on w the car miss-firing. I don't know if the plugs are poorly made or what. -DaNnY-

carnut59 · September 3rd, 2007, 11:21 PM

the bosch +2 and +4 just like the spitfires will damage the pistons and cause other problems. i dont know anyone who likes them.

Dennis-96GT · September 4th, 2007, 12:53 PM

ok so being a uninformed individual what exactly does getting a cooler plug do for the car ?and what ranges shoudl people run who are stock

Dennis-96GT · September 5th, 2007, 02:12 AM

???????? hello anyone home (hears echos)

ModMustang97GT · September 17th, 2007, 05:03 PM

For nitrous and FI cars, the step colder makes them less likely to detonate.

gills99stang · February 8th, 2008, 06:35 PM

So is it better to go cold as possible?

SWEET2KSTANG · February 8th, 2008, 08:32 PM

it wont hurt, but its all about efficientcy. the hotter you can keep a spark, the more efficient, but have to be carefull about detonation too.

gills99stang · February 8th, 2008, 08:33 PM

So how do you determine what's most efficient between keeping it hot and keeping down detonation?

SWEET2KSTANG · February 8th, 2008, 08:36 PM

knowing what exactly is done on the motor, temperatures, fuel, etc. etc. a lot of data logging, pulling plugs, and even checking injectors.

May 9th, 2007, 03:38 PM	#1
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,316	Spark Plug List For Mustangs Credit given to ALLMTR2V on the corral forums. MOTORCRAFT AWSF-32C / stock heat range - copper plug AWSF-22C / 1 Heat range colder - copper plug AWSFA-12C / 2 Hea range cooler - copper plug AGSF-32C/ Recommended for FRPP heads(not sure on heat range) NGK TR-55/ 3951/ Stock Heat Range TR-6/ 4177/ 1 Step Colder BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps R5724-8 (PN - 7317) two and a half steps R5724-9 (PN - 7891) three steps R5724-10 (PN - 7993) four steps AUTOLITE 764s / Stock 103s / 1 heat range cooler AR94 / 2 heat range cooler AR93 / 3 heat range cooler AR92 / 4 heat range cooler CHAMPION YS-59C / -3 or -4 below stock heat range DENSO IT16 / stock heat IT20 / -1 heat range IT22 / -2 heat range IT24 / -3 heat range __________________ Ford/Toyota tech. -93 LX, X303 heads, F-cam, Trickflow u/l, 1.6 RR, FR wires, MSD cap/rotor, Elec. fan, a/c delete, smog delete, sn95 fuel rails with BBK regulator, 75mm TB and EGR, Vortech S-trim w/intercooler, 42lb inj/PMAS, 3.55's -

June 17th, 2007, 12:29 PM	#2
itschristorres8 I Post Entirely Way Too Much 2000 Mustang V6 n proud 13.1@107mph 2.1-60' Join Date: Aug 2006 Location: south florida Posts: 13,495	im guessing this is for only v8s cause autolite stocks are 765... all v6s are just a number up or down i believe i also hear that u dont really wana use NGK on a mustang to stick with motocraft or autolite __________________ TMA Turbo's Race kit ported heads and intakes-CRT performance- www.crtperformance.webs.com !! reground 216/216 camshaft .580-.600 springs- RPM 5.8psi goal-340-360rwhp boost control-10psi or under goal-400rwhp!! yeah on a v6

June 17th, 2007, 03:06 PM	#3
ChrisJ MM Ninjas! 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Williamsburg, Virginia Posts: 14,732	Got the same info from MPH as well...I posted it in the 99-04 section...This is for the V8 Mod Engines... __________________ My Junk www.myspace.com/cjobe

June 18th, 2007, 08:14 AM	#4
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 3,555	i run champion plugs in my car. i had the 304's which is one stage colder and now i run the 344's which are 2 stages colder. __________________ stock long block, bolt ons, slicks, and a little squeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.

June 18th, 2007, 10:10 AM	#5
03 R Code Hardcore Enthusiast unstoppable @ speed of light Join Date: Jul 2006 Location: Knees deep in dat ass Posts: 2,801	I run the NGK plug (TR-6's) and haven't had any problems out of those. I change them after about every 5-6 bottles...Just in cases! __________________ Political correctness is a doctrine fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.

July 1st, 2007, 12:22 PM	#6
mmustangsrus Newbie Join Date: Jul 2007 Posts: 2	i run ngk tr6ix`s in my cobra & they are awesome & they are the "recomened" plug for a supercharged mustang !!!!!!

July 22nd, 2007, 03:04 AM	#7
Stagray Regular Join Date: Jul 2007 Location: Hampton, VA Posts: 118	Is it possible to run higher heat stages on a stock motor and not hurt anything?

August 5th, 2007, 02:44 PM	#8
PonyXpress Newbie Join Date: Jan 2007 Location: Kuwait Posts: 30	nobody likes the bosch platinum+4's? __________________ What's the point of living if your can't keep up with life in the fast lane?

August 19th, 2007, 03:57 PM	#9
The eaglenator Hardcore Enthusiast Join Date: Sep 2006 Location: Herrin Il Posts: 2,244	How often should I change my plugs? I've got a 2000 GT V8 4.6 liter. All stock except for a CAI. Thanks __________________ Offical MM Zepplineers crew member #4-Commander http://i170.photobucket.com/albums/u...r1/egalght.gif http://i170.photobucket.com/albums/u...m134137df1.jpg

September 3rd, 2007, 08:40 PM	#10
DaNnY Newbie Join Date: Sep 2007 Location: Austin, Tx Posts: 9	I worked for Autozone a while back, and almost every single Bosch +2 or +4 that we sold, the customer almost always came back with fouled plugs, check engine light on w the car miss-firing. I don't know if the plugs are poorly made or what. -DaNnY-

September 3rd, 2007, 11:21 PM	#11
carnut59 Newbie Join Date: Sep 2007 Posts: 13	the bosch +2 and +4 just like the spitfires will damage the pistons and cause other problems. i dont know anyone who likes them.

September 4th, 2007, 12:53 PM	#12
Dennis-96GT Enthusiast 1996 Mustang GT 11h47m32s Join Date: Sep 2006 Location: ozark mo Posts: 611	ok so being a uninformed individual what exactly does getting a cooler plug do for the car ?and what ranges shoudl people run who are stock __________________ Red Mustang Society: Founder POLITICS THE MOST ACURTE USE OF A WORD POLI=MANY TICS=BLOOD SUCKING CREATURES

September 5th, 2007, 02:12 AM	#13
Dennis-96GT Enthusiast 1996 Mustang GT 11h47m32s Join Date: Sep 2006 Location: ozark mo Posts: 611	???????? hello anyone home (hears echos) __________________ Red Mustang Society: Founder POLITICS THE MOST ACURTE USE OF A WORD POLI=MANY TICS=BLOOD SUCKING CREATURES

September 17th, 2007, 05:03 PM	#14
ModMustang97GT Regular 1997 Mustang GT Join Date: Aug 2007 Location: Seattle, WA Posts: 399	For nitrous and FI cars, the step colder makes them less likely to detonate.

February 8th, 2008, 06:35 PM	#15
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,452	So is it better to go cold as possible? __________________ Brendan '99 Mustang GT [318 rwhp N/A] For Sale: 2003 Boyd Coddington / Roush California Roadster http://www.moddedmustangs.com/forums...-roadster.html

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February 8th, 2008, 08:32 PM	#16
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 3,555	it wont hurt, but its all about efficientcy. the hotter you can keep a spark, the more efficient, but have to be carefull about detonation too. __________________ stock long block, bolt ons, slicks, and a little squeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.

February 8th, 2008, 08:33 PM	#17
gills99stang Hardcore Enthusiast 1999 Mustang GT 13.4 @ 100 Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 2,452	So how do you determine what's most efficient between keeping it hot and keeping down detonation? __________________ Brendan '99 Mustang GT [318 rwhp N/A] For Sale: 2003 Boyd Coddington / Roush California Roadster http://www.moddedmustangs.com/forums...-roadster.html

February 8th, 2008, 08:36 PM	#18
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 3,555	knowing what exactly is done on the motor, temperatures, fuel, etc. etc. a lot of data logging, pulling plugs, and even checking injectors. __________________ stock long block, bolt ons, slicks, and a little squeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.