Gap in spark plugs?
Registered User
Joined: Jul 1999
Posts: 1,041
From: Robinson, IL
Re: Gap in spark plugs?
Originally Posted by Mindgame
From NGK's website:
If I were running a Platinum factory type plug I would probably stay closer to the factory spec but my first try would be to run them at .040. If they run fine there, then just gap them that way every time you use that plug.
-Mindgame
If I were running a Platinum factory type plug I would probably stay closer to the factory spec but my first try would be to run them at .040. If they run fine there, then just gap them that way every time you use that plug.
-Mindgame
Also, thanks to everyone else who replied. I appreciated the comments.
Last edited by Don 97 SS; May 2, 2005 at 03:47 PM.
Registered User
Joined: Jan 2004
Posts: 1,406
From: Downey, CA
Re: Gap in spark plugs?
I spent hours reading all the posts on spark plug gap about a year ago
and finally decided to go with NGK TR5s gapped at .043". You ask why
TR5s, it's because they come gapped smaller which requres less bending
to achieve .043". TR55s are gapped at .050 to .055". Same plug, just
different gaps. It seems to be working for me with the Accel 300 and
my baby cam.
and finally decided to go with NGK TR5s gapped at .043". You ask why
TR5s, it's because they come gapped smaller which requres less bending
to achieve .043". TR55s are gapped at .050 to .055". Same plug, just
different gaps. It seems to be working for me with the Accel 300 and
my baby cam.
Registered User
Joined: Dec 2002
Posts: 1,115
From: Louisiana
Re: Gap in spark plugs?
Originally Posted by 93Z28rare
My Chilton's Manual says that factory gap is at .035 for the 5.7L engine. I'm massively confused now on what to do with my TR55's.
Registered User
Joined: Dec 2002
Posts: 1,115
From: Louisiana
Re: Gap in spark plugs?
Originally Posted by 93Z28rare
Well I'm more inclined to follow the gap setting that you guys would recommend for my engine. For a stock engine the gap should be at around or at .050 right???
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