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Thread: NGK Iridium Gap Issue
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05-18-2008, 09:54 AM #1
- Join Date
- Aug 2005
- Location
- Deltona, FL
- Age
- 62
- Posts
- 18
Light Metallic Pewter- 2001 Camaro Z28
NGK Iridium Gap Issue
Regarding the gap for NGK Iridium's (p/n 7164) I just bought them and they are all gapped at 57. I've read other posts that said the gap s/b 60; another said the Iridiums are pregapped at 55.
Should I regap them to 55 or 60, or should I just leave them alone?
My engine is stock no headers and such, my mods are only an SLP MAF, SLP
lid and a Magnaflow catback.
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05-18-2008, 10:35 AM #2
- Join Date
- Dec 2005
- Location
- Huntington Beach, California
- Age
- 54
- Posts
- 416
navy blue metallic- 2001 trans am
I just got a set of Denso Iridiums and have the same question. I was always told that all iridiums are pre-gapped.
GMPP LS6 crate motor,racetronix,Wilwood 6 piston,HID's,200mph speedo,full dynomat, GY F1's,17" Y2K, Alpine audio upgrade,3" ele cutout, LT's, catted-Y, full suspension
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05-18-2008, 10:38 AM #3
Anywhere from 55-60 should be fine.
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05-18-2008, 06:07 PM #4
They should be gapped @ .055 in a NA engine.
SteveC
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05-18-2008, 08:05 PM #5
- Join Date
- Dec 2005
- Location
- Huntington Beach, California
- Age
- 54
- Posts
- 416
navy blue metallic- 2001 trans am
I have 2 sides to my plug gapper, inches and millimeter, mine says .55 ,is this the same as .055?
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05-19-2008, 03:56 AM #6
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05-19-2008, 03:49 PM #7
- Join Date
- Aug 2005
- Location
- Louisville, KY
- Age
- 43
- Posts
- 32
Black- 1999 Trans Am
You should be fine with 57.
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05-20-2008, 03:47 PM #8
Be very careful if you gap them not to snap electrode.
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