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»	Northern California Ford Owners » Automotive » Tech Talk » WHAT SPARK PLUGS

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Topic: WHAT SPARK PLUGS

2SIK GT
¯
Member # 3381

posted

SHOULD I GO REGULAR COPPER AUTOLITE 3924'S OR STAY WITH THE AUTOLITE XP3924 IRRIDIUMS.... THEY SEEM TO RUN GOOD BUT I HAVE A BUILT MOTOR AND JUST SLAPPED THE VORTEC ON IT.......

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all u see is tail lights if u where driving a chevy

Posts: 979 | From: San Jose Ca | Registered: Oct 2003 | :

DIRTY SALLY
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Member # 7845

posted

run bosh one there good

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Savage Habits
instagram @2cheezen

Posts: 9145 | Registered: Aug 2007 | :

LQ9SN95
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Member # 7080

posted

autolites copper [Wink]

[ November 20, 2008, 07:35 PM: Message edited by: F8LSN8K ]

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http://www.fastgms-teamfast.com
http://www.facebook.com/aop.fresno?ref=ts&fref=ts
Lq9 swap
102 fast intake
Trick flow heads
T rex cam

Posts: 8031 | From: Fresno, Ca | Registered: Sep 2006 | :

2SIK GT
¯
Member # 3381

posted

f@#$ IT COPPER IT IS I HEARS COPPER IS BEST FOR BLOWERS

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all u see is tail lights if u where driving a chevy

Posts: 979 | From: San Jose Ca | Registered: Oct 2003 | :

JohnB
Tech Moderator
Member # 969

posted

What cylinder heads and what PSI level are you running?

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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500

Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002 | :

LQ9SN95
¯
Member # 7080

posted

quote:
Originally posted by 2SIK GT:
f@#$ IT COPPER IT IS I HEARS COPPER IS BEST FOR BLOWERS

wait u have alum heads and blower so try autolite 3923 and try gapping them at like .032

let me know if it works for ya

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http://www.fastgms-teamfast.com
http://www.facebook.com/aop.fresno?ref=ts&fref=ts
Lq9 swap
102 fast intake
Trick flow heads
T rex cam

Posts: 8031 | From: Fresno, Ca | Registered: Sep 2006 | :

2SIK GT
¯
Member # 3381

posted

trickflow and 10psi

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all u see is tail lights if u where driving a chevy

Posts: 979 | From: San Jose Ca | Registered: Oct 2003 | :

92stangLX
¯
Member # 3252

posted

Autolite copper.. one heat range colder than stock [patriot]

Posts: 5302 | From: San Francisco | Registered: Sep 2003 | :

LQ9SN95
¯
Member # 7080

posted

quote:
Originally posted by 92stangLX:
Autolite copper.. one heat range colder than stock

He needs 2 steps colder autolite 3923 cuz he has heads and blower

Someone correct me if I'm wrong but I'm pretty sure I'm right

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http://www.fastgms-teamfast.com
http://www.facebook.com/aop.fresno?ref=ts&fref=ts
Lq9 swap
102 fast intake
Trick flow heads
T rex cam

Posts: 8031 | From: Fresno, Ca | Registered: Sep 2006 | :

93PONY
Mr. Valve Events
Member # 60

posted

Never EVER run a platinum or iridium spark plug on a boosted application.

Hell, I pulled the stock platinum plugs out of my wife's VW Passat cause it was pinging under high loads. Good'ol Autolite 3924's went in & it hasn't pinged since. (all-motor 10.5:1 compression)

In a mustang, 3924's for under 500RWHP, 3923's for over 500RWHP.

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www.advancedenginedevelopment.com
SCT dealer
Dynotuning

(916)715-7569

Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000 | :

2SIK GT
¯
Member # 3381

posted

3923's it is then thanks........ [Smile]

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all u see is tail lights if u where driving a chevy

Posts: 979 | From: San Jose Ca | Registered: Oct 2003 | :

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