Gapping NKG TR6 spark plugs?

maxgst · December 28th, 2010, 04:57 PM

What should I gap my NKG TR6 for a 100 shot nitrous set up, I read from .35-.40 and someone say .45 so im lost.

stal94gt · December 28th, 2010, 05:00 PM

.35-.40 close gap would prevent it from blowing out the spark. but if your spraying a small shot you wil be ok with .40-.45.

99GT35thLE · December 28th, 2010, 07:51 PM

During my research I read .30-.35 and .45 is for normal NA use.

maxgst · December 28th, 2010, 07:55 PM

so im back to where I started lol. I think im gonna gap them at .39

TaintedStang · December 28th, 2010, 07:56 PM

I have mine gapped at .35 and haven't had any problems.

casper gt · December 28th, 2010, 08:58 PM

problem isn't the gap its TR6's in your windsor heads.

do your heads a favor & exchange them for autolite 103's.

autolite's have 1 less thread on them & don't stick out into the combustion chamber on a windsor head like the other full threaded spark plugs will (especially TR6's)

ModularHeadShop Articles on Spark Plugs

Willy Mo · December 28th, 2010, 09:25 PM

^ good info

maxgst · December 30th, 2010, 12:52 AM

oo, but everyone recommended me the tr6 for nitrous! and I just got them as well

BaznastyDave · December 30th, 2010, 01:05 AM

TR6's are great, gap them @ .035

Eagle2000GT · December 30th, 2010, 05:26 AM

That Modular Head Shop article explains why some Windsors spit out their spark plugs and some don't. Looking close at the pictures it looks to me that the spark plugs in both the bad head and the good one have the same number of threads exposed. They said it appears to be random. But why take the chance. I'm assuming that Autolite 103s are a one step colder plug same as the NGK TR6s.

casper gt · December 30th, 2010, 03:47 PM

Originally Posted by Eagle2000GT

That Modular Head Shop article explains why some Windsors spit out their spark plugs and some don't. Looking close at the pictures it looks to me that the spark plugs in both the bad head and the good one have the same number of threads exposed. They said it appears to be random. But why take the chance. I'm assuming that Autolite 103s are a one step colder plug same as the NGK TR6s.

+1^ autolite 103's are not only one step colder, they have 1 less thread.

Eagle2000GT · December 30th, 2010, 05:28 PM

Very good information. But the computer will not let me give you reps.

WonfastGT · December 30th, 2010, 06:58 PM

i had a autolite pop out? i dont think it really matters what kinda plug. i guess the ngk up the possibility?

casper gt · December 30th, 2010, 11:58 PM

Originally Posted by WonfastGT

i had a autolite pop out? i dont think it really matters what kinda plug. i guess the ngk up the possibility?

spark plugs coming out are almost always (I say almost to be nice, but it's closer to always) due to improper instalation.

it has nothing to do with what kind of plug you use.

December 28th, 2010, 04:57 PM	#1
maxgst Hardcore Enthusiast 2000 Mustang GT Join Date: Jun 2010 Location: Miami, Fl Posts: 2,392 iTrader: 1 reviews	Gapping NKG TR6 spark plugs? What should I gap my NKG TR6 for a 100 shot nitrous set up, I read from .35-.40 and someone say .45 so im lost. __________________ .............................2000 GT Vert............................. How To Cut/Remove springs

December 28th, 2010, 07:51 PM	#3
99GT35thLE Hardcore Enthusiast 1999 GT 35th LE Join Date: Dec 2009 Location: Jacksonville, Florida Posts: 1,428 iTrader: 0 reviews	During my research I read .30-.35 and .45 is for normal NA use. __________________ Drive it like you stole it

December 28th, 2010, 07:55 PM	#4
maxgst Hardcore Enthusiast 2000 Mustang GT Join Date: Jun 2010 Location: Miami, Fl Posts: 2,392 iTrader: 1 reviews	so im back to where I started lol. I think im gonna gap them at .39 __________________ .............................2000 GT Vert............................. How To Cut/Remove springs

December 28th, 2010, 07:56 PM	#5
TaintedStang MM's Taint Shaver! 2003 Mustang GT Join Date: Dec 2009 Location: Oregon Posts: 6,528 iTrader: 5 reviews	I have mine gapped at .35 and haven't had any problems. __________________

December 28th, 2010, 08:58 PM	#6
casper gt Moderator 2012 300a gt auto 12.10@116 Join Date: Mar 2008 Location: creighton pa Posts: 7,697 iTrader: 4 reviews	problem isn't the gap its TR6's in your windsor heads. do your heads a favor & exchange them for autolite 103's. autolite's have 1 less thread on them & don't stick out into the combustion chamber on a windsor head like the other full threaded spark plugs will (especially TR6's) ModularHeadShop Articles on Spark Plugs __________________ MM BRACKET RACING CREW CO-FOUNDER BAMA Performance Drag Team Founder 2012 300a GT auto

December 28th, 2010, 05:00 PM	#2
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	.35-.40 close gap would prevent it from blowing out the spark. but if your spraying a small shot you wil be ok with .40-.45.

December 28th, 2010, 09:25 PM	#7
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	^ good info __________________

December 30th, 2010, 12:52 AM	#8
maxgst Hardcore Enthusiast 2000 Mustang GT Join Date: Jun 2010 Location: Miami, Fl Posts: 2,392 iTrader: 1 reviews	oo, but everyone recommended me the tr6 for nitrous! and I just got them as well __________________ .............................2000 GT Vert............................. How To Cut/Remove springs

December 30th, 2010, 01:05 AM	#9
BaznastyDave MM Fanatic 2004 Mustang Join Date: May 2010 Location: NC Posts: 4,336 iTrader: 4 reviews	TR6's are great, gap them @ .035 __________________ 305/333 WHP/WTQ with CMS Stage II cams 440/552 WHP/WTQ on Spray 7.86 @ 89.1mph, 1.61 60 foot N/A 7.20 @ 98.8MPH 1.55 60 foot on spray Stock Longblock with Cams

December 30th, 2010, 05:26 AM	#10
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	That Modular Head Shop article explains why some Windsors spit out their spark plugs and some don't. Looking close at the pictures it looks to me that the spark plugs in both the bad head and the good one have the same number of threads exposed. They said it appears to be random. But why take the chance. I'm assuming that Autolite 103s are a one step colder plug same as the NGK TR6s. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

December 30th, 2010, 05:28 PM	#12
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	Very good information. But the computer will not let me give you reps. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

December 30th, 2010, 06:58 PM	#13
WonfastGT Regular 2000 GT Join Date: Feb 2010 Location: Rockford Posts: 332 iTrader: 0 reviews	i had a autolite pop out? i dont think it really matters what kinda plug. i guess the ngk up the possibility? __________________

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