1994 Mustang GT - Spark Plugs? - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 12-21-2007 Thread Starter
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Question 1994 Mustang GT - Spark Plugs?

So what is the best kind of plug for our 5.0?
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post #2 of 12 (permalink) Old 12-21-2007
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i've always prefered Bosch Platinum +4s but thats just me, ive never ran them in a mustang so im not sure how that would work.

"never interrupt your enemy while hes making a mistake" - Napolian Bonapart
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post #3 of 12 (permalink) Old 12-21-2007
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bosh dosnt run so good in fords theyre more of german car plugs i just nought the next top og the line plugs from auto parts thaty tryed to sell me bosh but it made my car idel hard i took them back they replaced them with the 1s right under bosh theyre exepsive but they gave me great preformance
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post #4 of 12 (permalink) Old 12-21-2007
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Motorcraft factory plugs all the way. I spend hours and hours every week at work taking Bosch plugs out of all types of cars because they cause lots of runnability problems.

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post #5 of 12 (permalink) Old 12-21-2007
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dont go with bosch, autolite or motorcraft copper core is the way our engines work at its best.

2012 Mustang Gt track pack - stock for now
1994 Mustang GT - not stock
2004 Lancer Evolution 8 RS - 455whp 362tq sold
2003 Dodge Neon SRT4 - 280whp 302tq sold
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post #6 of 12 (permalink) Old 12-21-2007
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and what about NGK iridium.....
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post #7 of 12 (permalink) Old 12-21-2007
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Quote:
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and what about NGK iridium.....
A waste of money.Just stick with the autolites.
By the way whats up? Finally someone in my area.

1990 LX, Vortech Sc-Trim, UPR Power Pipe, C&L 76mm MAF, DIY ported upper, MAC 70mm T/B, BBK Equal length shorties, BBK O/R H-pipe, Flowmasters with Dumps, FRPP 4.10 gears, Strange 10 Way Shocks, BBK Springs, Electric Fan, 130 Amp Alt, FRPP Plug Wires, MSD Cap, MSD Coil.
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post #8 of 12 (permalink) Old 01-13-2008
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motorcraft are all the plug you need.
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post #9 of 12 (permalink) Old 01-13-2008
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I read many previous threads regarding this before I put plugs in my 94 GT. The plug that was recommended the most was the Autolite 25's. The Autolite Platinum part number is AP25. Putting these in and setting the timing properly. This took care of a bogging problem when the engine was cold. They seem to be good plugs.
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Quote:
Originally Posted by Pro Mustang View Post
I read many previous threads regarding this before I put plugs in my 94 GT. The plug that was recommended the most was the Autolite 25's. The Autolite Platinum part number is AP25. Putting these in and setting the timing properly. This took care of a bogging problem when the engine was cold. They seem to be good plugs.

yep this guy is correct, go with the Autolight #25, best ones you are going to get for the 94 gt and im pretty shure the gap is .54
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Quote:
Originally Posted by 76Ford90LX View Post
A waste of money.Just stick with the autolites.
By the way whats up? Finally someone in my area.
the iridiums are the best plug you could get for the mustang, even though there like 6 or $7 its worth it, they did a dyno run on one tv show and they gained 8hp with a plug change and 9mm plug wires, i use them, well worth the money you will easily feel the difference

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1987 Mustang LX 5.0 5-speed,white with smoke grey interior,MAF conversion,Perfection clutch(valeo)2.5inch Ravin exhaust, subframe connectors, ported lower intake & heads=SOLD
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Well iridium is where I'm going then!

2008 GT Mustang 4.6L, K&N CAI w/ Brenspeed 93 tune, Steeda UDPs, Flowmaster, Royal Purple Oil, and Shorty antenna, 3.55 gear ratio
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