iwashmycar
20+ Year Stangneter 
cevtv said:Well, if the factory opened the gap when they went to a higher output coil, then it makes sense that you could open it a bit with a higher output Accel Supercoil.............
Makes sense
Stock: SP Gap .40 or .54??
- Thread starter madonionrs
- Start date
Makes sense
5.0guy said:
I still have mine. Am I the only one??
On it it reads
Spark Plug Motorcraft AWSF32C 0.052" - 0.056"
This is on an '88. All 87-93's are the same.
cevtv
Founding Member
Mustang5L5 said:
Not true. Up to mid '90 the coil output was 40 millijoules, after it was 90 millijoules.
Just use whatever gap works best for your setup.
blkstangman88
New Member
- Apr 6, 2004
- 646
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dude, ford told me the stock gap is .44, but since i got a msd ignition system there like gap ur spugs at .54, thats is #$%#ed up
Legendary
Founding Member
I have an MSD ignition and ACCEL coil and I gapped my autolites at .054. After the tune up it didn't feel as good as before and when the car is cold it wants to back fire for the first 5 minutes of driving! I'm not happy.
cevtv
Founding Member
Mine are Autolite 25's gapped at .054" with the stock ignition...........ran like crap gapped at .044"......... 
cevtv said:
It still says on the coil cover of my '88 that the gap is 0.052- 0.056"
Yes it's the original cover
"It still says on the coil cover of my '88 that the gap is 0.052- 0.056"
Yes it's the original cover"
So does my original cover on my 1990 and I've been running 0.054" gap in my 1990 car with stock ignition since new with great results. Might want to recheck that unless cars shipped to MA are different.
Yes it's the original cover"
So does my original cover on my 1990 and I've been running 0.054" gap in my 1990 car with stock ignition since new with great results. Might want to recheck that unless cars shipped to MA are different.
Legendary
Founding Member
Luvmy88 said:
Yeah! I will try the NGK spark plugs next. People seem to like them. Is this a hotter plug? Should I gap it differently (other than .054) for my mods?
Mavrick
Founding Member
According to the May 1994 Motorcraft Spark Plugs catalog sitting in front of me:
.054" - '87-'93 (including Cobra)
.050" - '82, '84-'85 (CFI), '86
.044" - '83-'85 (Carb)
According to The Official Ford Mustang 5.0 1979 through 1993 Technical Reference & Performance Handbook:
.050" - '84-'85 (CFI), '86, '93 (Cobra)
.044" - '82-'85 (Carb), '87-'93 (exc. Cobra)
.054" - '87-'93 (including Cobra)
.050" - '82, '84-'85 (CFI), '86
.044" - '83-'85 (Carb)
According to The Official Ford Mustang 5.0 1979 through 1993 Technical Reference & Performance Handbook:
.050" - '84-'85 (CFI), '86, '93 (Cobra)
.044" - '82-'85 (Carb), '87-'93 (exc. Cobra)
FoxChasis said:
As good as the Official Mustang Handbook is, there have been a few times where i thought i have found mistakes in what they publish. This was one instance. According to the book the gap is 0.044", however as stated, the Vaccuum and Emmissions control decal on my own car lists it as 0.054"
Stump1000
New Member
closing the plugs up hurts horsepower bad. I let my friend put plugs in my car before we went to the track on night. I got there and it run like ****... pulled the plugs out and he had them gapped at .35. I put them on .52 and the problem was solved
Mavrick
Founding Member
ah so .050 i should be fine.... you guys think? I just dont want to pull all the plugs again and gap them, grease them etc.
cevtv
Founding Member
Mustang5L5 said:
It seems like everywhere you read about it, it says something different. Just use the gap that works best for you!
sweet~Low~93
New Member
FoxChasis said:
What's unique about the Plugs -? same you would use on 87-93 5.0's -?
I know the heads are different from 86-e6 -to 87-93 E7's .. 86 5.0's has flat top pistons too.
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