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#1 |
Registered Member
Join Date: Mar 1999
Location: Sanford NC USA
Posts: 155
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![]() i have the RPms and am running the autolite 3934's i want a better plug(hotter) cause i am not spraying my car anymore, thankx in advance
------------------ SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi |
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#2 |
Registered Member
Join Date: Sep 1998
Location: IL
Posts: 1,155
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![]() I think you meant to type 3924's. Anyway, I believe you can get a Autolite 3926, which would be one step hotter than stock and two steps hotter than a 3924.
------------------ Craig Supercharged 93 GT Basically stock 93 Cobra "I drive way too fast to worry about cholesterol!" |
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#3 |
Registered Member
Join Date: Mar 1999
Location: Sanford NC USA
Posts: 155
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![]() No I am running the autolite 3934's they are NOS plugs. Factory says to run 3924's thats the stock heat range.. i want maybe NGK's or something I dunno
------------------ SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi |
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#4 |
Registered Member
Join Date: Sep 1998
Location: IL
Posts: 1,155
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![]() I'm not a plug expert, but it is my understanding that for a Ford, Autolite xx25 is the stock heat range, 24's are one step colder. Unfortunately Autolite doesn't make a 3925. So I guess you should look into Motorcraft or NGK's.
------------------ Craig Supercharged 93 GT Basically stock 93 Cobra "I drive way too fast to worry about cholesterol!" |
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#5 |
Guest
Posts: n/a
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![]() NGK FR5 or if you need colder the next step colder is R5672-8.
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#6 |
Sniffed too much n20
Join Date: Oct 1998
Location: Ont, Canada
Posts: 1,018
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![]() I don't know the Autolite number, but I run AC Delco R44XLS in my 6032 heads. For nitrous I run R43XLS with a smaller gap without any problems on a 125hp shot.
I tried Champions (RN12YC) and didn't care for them at all. |
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#7 |
Guest
Posts: n/a
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![]() Personally, I'd stick w/ either the autolites or Motorsport plugs.....don't waste your $$$ on NGK or any other platinum plugs.
------------------ '90 LX 5.0;12K original miles (no sh*&);3.55 gears; March pulleys;Edelbrock Performer Heads;BBK 1 5/8" equal length shorties;MSD 6AL ignition w/ blaster 2 coil;FMS E303 cam;Pro-M 75mm MAF;BBK 70mm TB; Eibach drag-launch spring kit;Southside welded subs;9" K&N cone filter charger;Hurst shifter;Cervini's 3" turbo hood;A/C delete; gutted cats;2 chamber Flomasters;Corbeau racing seats;FMS 30# injectors;JMS chip; Holley 190lb fp;TFS track heat Intake (12.299 @ 113 - 1.78 60') |
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#8 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() "don't waste your $$$ on NGK......."
NGK's are regarded by many professionals as one of the best plugs on the market, and they are not expensive, so I'm missing your point entirely? ------------------ 1993 GT/AOD '93 Mustang GT |
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#9 |
The Dude
Join Date: Feb 2001
Location: Arlington, VA
Posts: 1,262
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![]() the point is that different plugs really don't do much of anything performance wise. we've had this discussion. just buy autolite or motocraft plugs. if you want a better spark, get a better coil or ignition box, plugs aren't gonna do it.
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#10 |
Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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![]() Have you heard of higher quality construction and durability for the same price?
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#11 |
Registered Member
Join Date: Sep 1998
Location: IL
Posts: 1,155
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![]() NGK plugs are excellent plugs. No fancy gimmicks like split fires or platniums, just very well designed and constructed copper core plugs. They sell for around $1.50 each where I live. Sometimes they're a little harder to find though... just about every big auto parts chain sells Autolite, Motorcraft, and Champion.
------------------ Craig Supercharged 93 GT Basically stock 93 Cobra "I drive way too fast to worry about cholesterol!" |
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#12 |
Guest
Posts: n/a
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![]() NGK's are a bit more where I'm from. If you're not spraying/blowing.....a plug is a plug is a plug. You're not gonna get more hp or better ET's from an NGK over a Autolite/Motorsport....so the point is, it's a preference thing!
------------------ '90 LX 5.0;12K original miles (no sh*&);3.55 gears; March pulleys;Edelbrock Performer Heads;BBK 1 5/8" equal length shorties;MSD 6AL ignition w/ blaster 2 coil;FMS E303 cam;Pro-M 75mm MAF;BBK 70mm TB; Eibach drag-launch spring kit;Southside welded subs;9" K&N cone filter charger;Hurst shifter;Cervini's 3" turbo hood;A/C delete; gutted cats;2 chamber Flomasters;Corbeau racing seats;FMS 30# injectors;JMS chip; Holley 190lb fp;TFS track heat Intake (12.299 @ 113 - 1.78 60') |
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#13 |
Registered Member
Join Date: Mar 1999
Location: Sanford NC USA
Posts: 155
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![]() Thanx for all the replies, I think I will give NGK's a try and see how they do.
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