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Discussing Spark Plug List For Mustangs in the Modular Mustangs Forum. Credit given to ALLMTR2V on the corral forums. MOTORCRAFT AWSF-32C / stock heat range - copper ...

       

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Old May 9th, 2007, 03:38 PM   #1
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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
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Old June 17th, 2007, 12:29 PM   #2
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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
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Old June 17th, 2007, 03:06 PM   #3
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Got the same info from MPH as well...I posted it in the 99-04 section...This is for the V8 Mod Engines...
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Old June 18th, 2007, 08:14 AM   #4
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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.
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Old June 18th, 2007, 10:10 AM   #5
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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!
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Old July 1st, 2007, 12:22 PM   #6
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i run ngk tr6ix`s in my cobra & they are awesome &

they are the "recomened" plug for a supercharged mustang !!!!!!
 
Old July 22nd, 2007, 03:04 AM   #7
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Is it possible to run higher heat stages on a stock motor and not hurt anything?
 
Old August 5th, 2007, 02:44 PM   #8
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nobody likes the bosch platinum+4's?
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Old August 19th, 2007, 03:57 PM   #9
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How often should I change my plugs? I've got a 2000 GT V8 4.6 liter. All stock except for a CAI. Thanks
 
Old September 3rd, 2007, 08:40 PM   #10
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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-
 
Old September 3rd, 2007, 11:21 PM   #11
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the bosch +2 and +4 just like the spitfires will damage the pistons and cause other problems. i dont know anyone who likes them.
 
Old September 4th, 2007, 12:53 PM   #12
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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
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Old September 5th, 2007, 02:12 AM   #13
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???????? hello anyone home (hears echos)
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Old September 17th, 2007, 05:03 PM   #14
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For nitrous and FI cars, the step colder makes them less likely to detonate.
 
Old February 8th, 2008, 06:35 PM   #15
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So is it better to go cold as possible?
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Old February 8th, 2008, 08:32 PM   #16
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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.
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One died for your soul, the other for your freedom.
 
Old February 8th, 2008, 08:33 PM   #17
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So how do you determine what's most efficient between keeping it hot and keeping down detonation?
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Old February 8th, 2008, 08:36 PM   #18
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knowing what exactly is done on the motor, temperatures, fuel, etc. etc. a lot of data logging, pulling plugs, and even checking injectors.
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stock long block, bolt ons, slicks, and a little squeze
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2. The American G. I.

One died for your soul, the other for your freedom.
 
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