Spark Plugs
Thread Starter
Instructor
Joined: Feb 2009
Posts: 113
Likes: 0
From: Clinton MD
Spark Plugs
What NKG plugs should I use?
NGK G-Power TR-55GP Spark Plugs (.055 GAP)
NGK G-Power TR-5GP Spark Plugs (.040 GAP)
NGK Iridium IX TR-55IX Spark Plugs (.055 GAP)
NGK Iridium IX TR-5IX Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.055 GAP)
What GAP is the best for my car? Only have the Halltech.
NGK G-Power TR-55GP Spark Plugs (.055 GAP)
NGK G-Power TR-5GP Spark Plugs (.040 GAP)
NGK Iridium IX TR-55IX Spark Plugs (.055 GAP)
NGK Iridium IX TR-5IX Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.055 GAP)
What GAP is the best for my car? Only have the Halltech.
Tech Contributor
Joined: Jan 2007
Posts: 19,360
Likes: 1,127
From: Dyer, IN
What NKG plugs should I use?
NGK G-Power TR-55GP Spark Plugs (.055 GAP)
NGK G-Power TR-5GP Spark Plugs (.040 GAP)
NGK Iridium IX TR-55IX Spark Plugs (.055 GAP)
NGK Iridium IX TR-5IX Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.055 GAP)
What GAP is the best for my car? Only have the Halltech.
NGK G-Power TR-55GP Spark Plugs (.055 GAP)
NGK G-Power TR-5GP Spark Plugs (.040 GAP)
NGK Iridium IX TR-55IX Spark Plugs (.055 GAP)
NGK Iridium IX TR-5IX Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.040 GAP)
NGK V-Power TR-5 Spark Plugs (.055 GAP)
What GAP is the best for my car? Only have the Halltech.
Drifting
Joined: Dec 2006
Posts: 1,523
Likes: 5
From: Holly, Michigan
I have the TR55IX in my FRC...They've been in for almost 2 years, and they've been great. That being said, the AC Delco iridium is a fine plug as well...
The TR55IX's are pre-gapped...(as are all fine tipped platinum/iridium plugs).
The TR55IX's are pre-gapped...(as are all fine tipped platinum/iridium plugs).
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
I'll be the spoiler and say...none of the above. Stock plugs for a stock engine..
I tend to agree--On a mostly stock engine I'd go back with what it came with & Stock gap--Mostly for longevity--As far as those new material plugs out there--My opinion is that those are all a waste--Just another way to get your money--If you hear of guys saying they made more power with them or felt the difference---chances are their plugs were bad to start with and ANY new plug would have made it run better--- The correct heat rage in a plug is the most important thing--A stock plug for a D/D has been researched by GM engineers to be the best choice---
On a modded engine although it's a differnt story-On a hds/cam car for example there is no better plug than the standard copper core plug
NGK TR-55 gapped at .040--Copper is the best material for getting rid of heat--however their drawback is they don't last long--Most new car manufacturers went with a Platinum combo plug strictly for the longevity--up to 75K miles on some just to eiminate maintenance tune-ups---
I tend to agree--On a mostly stock engine I'd go back with what it came with & Stock gap--Mostly for longevity--As far as those new material plugs out there--My opinion is that those are all a waste--Just another way to get your money--If you hear of guys saying they made more power with them or felt the difference---chances are their plugs were bad to start with and ANY new plug would have made it run better--- The correct heat rage in a plug is the most important thing--A stock plug for a D/D has been researched by GM engineers to be the best choice---
On a modded engine although it's a differnt story-On a hds/cam car for example there is no better plug than the standard copper core plug
NGK TR-55 gapped at .040--Copper is the best material for getting rid of heat--however their drawback is they don't last long--Most new car manufacturers went with a Platinum combo plug strictly for the longevity--up to 75K miles on some just to eiminate maintenance tune-ups---
