Spark plugs for 4.0L - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-28-2004, 12:37   #1 (permalink)
Registered User
 
Join Date: Sep 2003
Location: Sydney
Posts: 141
Spark plugs for 4.0L

Which spark plugs do most peolpe use in their EL 4.0L, the NGK specified for XR6, the NGK specified for "4.0L except XR6" , not sure what the difference is? or JMM's Autolite plugs? which ones are they anyway?
__________________
My tag line sucks, can I borrow yours?
edv8wagon is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-28-2004, 14:16   #2 (permalink)
In-line 6, DOHC, 24V
 
johnydep's Avatar
 
Join Date: Sep 2004
Location: On the coast
Posts: 562
Re: Spark plugs for 4.0L

XR6 & LPG use a smaller gap
I have had good results with Denso plugs, which are also the genuine plug.

Standard - W16EXRU-11 this is 1.1mm
XR6 & LPG - W16EXRU this is .08mm
johnydep is offline   Reply With Quote
Old 11-28-2004, 16:48   #3 (permalink)
Registered User
 
madmelon's Avatar
 
Join Date: Apr 2003
Location: Shire :D
Age: 29
Posts: 439
Re: Spark plugs for 4.0L

Atm has ford plugs in it. used to have NGK's..they were pretty good till they all burned out...my fault, not plugs. Can widen the gap well past 1.1mm if you want to without hurting idle.
__________________
1987 Jaguar Sovereign - Metallic Green
3.6L DOHC 24 Valve
140KW@4750rpm
307Nm@3750rpm (Flywheel)
madmelon is offline   Reply With Quote
Old 11-28-2004, 17:48   #4 (permalink)
96 EF Futura
 
SiX_iN_a_RoW's Avatar
 
Join Date: Aug 2002
Location: Now Residing in Brisbane
Age: 31
Posts: 2,494
Re: Spark plugs for 4.0L

In my EA i used the NGK XR6 plugs ( slightly cooler heatrange ) which gave better idle, havent noticed any difference between the standard and XR6 plugs on the EF though. All I can say is stay away from the Bosch plugs, ran like crap and didnt last long at all
__________________
Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )
SiX_iN_a_RoW is offline   Reply With Quote
Old 11-29-2004, 00:49   #5 (permalink)
Registered User
 
Join Date: Jun 2004
Location: QLD,Australia
Posts: 79
Re: Spark plugs for 4.0L

I was going to try the autolite 985 (like jmm) but i think they are going to be too hot plug - ngk equiv ZFR4F-11 or ZF4A11 - the 4 indicades hotter than standard = 5 XR6=6 (bigger number the cooler)

NGK XR6 = ZGR6B-11 @ 1.1mm
smee is offline   Reply With Quote
Old 11-29-2004, 03:19   #6 (permalink)
what u lookin at
 
needturbo6's Avatar
 
Join Date: Sep 2004
Location: WA
Age: 30
Posts: 777
Re: Spark plugs for 4.0L

im using iridiums atm and until something else went wrong on my car, it definitly pulled a lot better though for 15 bucks each they oughta, plus u get 100,000 k's out of em.
a cheap mod that is effective is to grind/file the plugs' ground electrode down, ill post a thread on this sometime soon.
needturbo6 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cold Air Intake and Spark plugs for my Ka... GedKealmen Ford Fiesta Forum | Ford kA Forum 2 11-04-2007 14:35
what spark plugs to run in my windsor? 302_supra Windsor Tech 26 10-19-2004 04:51
Cold Air Intake and Spark plugs for my Ka... GedKealmen Ford Fiesta Forum | Ford kA Forum 0 09-09-2004 18:34
EF Spark Plugs and Leads RedEF6 Inline 6 Tech 12 08-14-2004 06:57
Recommended spark plugs for straight gas Rhett Cleveland Tech 3 06-22-2004 05:22

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 09:18.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.