Spark Plug advise.
Spark Plug advise.
I'm in need of new spark plugs but need to know what I can use on a completely stock lsj.... I remember I asked Powell on a thread but cannot find that thread 
thank youss ppl
thank youss ppl
HMMM stock is platniumtip lol!! Its not copper suppresant lol!
Acdelcos uses NGks btw
Ecotec 2.0 LSJ Spark Plugs 41-106 12610767
Acdelcos uses NGks btw
Ecotec 2.0 LSJ Spark Plugs 41-106 12610767
Last edited by Chevycobaltss3; Jul 29, 2012 at 11:30 AM.
stock is not irridium we have been thru this stock is copper core with a standard standard strap plat and irridium plugs are harder to fire and even harder with high cylnder pressures
Purpose of the Metal
The metal in a spark plug serves a single basic purpose: to channel the electric energy from the plug wire through the spark plug so that it can be forced to the engine block in the form of a spark. Therefore, any metal that conducts electricity at all could potentially be used for a spark plug. The metal should also not get too hot; one of the main problems with some metals is that they overheat quickly, causing the electric charge itself to be compromised and the spark plug to not operate as smoothly.
Copper Spark Plugs
Copper spark plugs are generally considered to have the best performance of any spark plug type. This is potentially different from what advertising companies suggest, but the other metals are, unfortunately, not as conductive in general as copper is. Platinum and iridium plugs are more likely to overheat, which causes damage to the plug components and can compromise the delivery of the spark to the engine block.
Platinum and Iridium Plugs
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity. Platinum has good longevity and the worst performance. Iridium has good longevity and a performance that is decent, which is why iridium plugs tend to be more expensive than any other type. Still, the difference between these plugs in terms of overall quality is minimal, as there is a trade off for each.
Most copper plugs need to be changed every 20,000 miles or so. Platinum and iridium plugs can often go for twice that before they require changing, but the overall performance will not be as good and you may have to deal with overheating of the plugs. This is potentially not worth the added cost of both platinum and iridium spark plugs, although the decision will depend upon your preference.
Purpose of the Metal
The metal in a spark plug serves a single basic purpose: to channel the electric energy from the plug wire through the spark plug so that it can be forced to the engine block in the form of a spark. Therefore, any metal that conducts electricity at all could potentially be used for a spark plug. The metal should also not get too hot; one of the main problems with some metals is that they overheat quickly, causing the electric charge itself to be compromised and the spark plug to not operate as smoothly.
Copper Spark Plugs
Copper spark plugs are generally considered to have the best performance of any spark plug type. This is potentially different from what advertising companies suggest, but the other metals are, unfortunately, not as conductive in general as copper is. Platinum and iridium plugs are more likely to overheat, which causes damage to the plug components and can compromise the delivery of the spark to the engine block.
Platinum and Iridium Plugs
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity. Platinum has good longevity and the worst performance. Iridium has good longevity and a performance that is decent, which is why iridium plugs tend to be more expensive than any other type. Still, the difference between these plugs in terms of overall quality is minimal, as there is a trade off for each.
Most copper plugs need to be changed every 20,000 miles or so. Platinum and iridium plugs can often go for twice that before they require changing, but the overall performance will not be as good and you may have to deal with overheating of the plugs. This is potentially not worth the added cost of both platinum and iridium spark plugs, although the decision will depend upon your preference.
Last edited by mrbelvedere; Jul 29, 2012 at 01:15 PM.
HMMM stock is iridium lol!! Its not copper suppresant lol!
Ecotec 2.0 LSJ Spark Plugs 41-106 12610767
Ecotec 2.0 LSJ Spark Plugs 41-106 12610767
stock is not irridium we have been thru this stock is copper core with a standard standard strap plat and irridium plugs are harder to fire and even harder with high cylnder pressures
Purpose of the Metal
The metal in a spark plug serves a single basic purpose: to channel the electric energy from the plug wire through the spark plug so that it can be forced to the engine block in the form of a spark. Therefore, any metal that conducts electricity at all could potentially be used for a spark plug. The metal should also not get too hot; one of the main problems with some metals is that they overheat quickly, causing the electric charge itself to be compromised and the spark plug to not operate as smoothly.
Copper Spark Plugs
Copper spark plugs are generally considered to have the best performance of any spark plug type. This is potentially different from what advertising companies suggest, but the other metals are, unfortunately, not as conductive in general as copper is. Platinum and iridium plugs are more likely to overheat, which causes damage to the plug components and can compromise the delivery of the spark to the engine block.
Platinum and Iridium Plugs
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity. Platinum has good longevity and the worst performance. Iridium has good longevity and a performance that is decent, which is why iridium plugs tend to be more expensive than any other type. Still, the difference between these plugs in terms of overall quality is minimal, as there is a trade off for each.
Most copper plugs need to be changed every 20,000 miles or so. Platinum and iridium plugs can often go for twice that before they require changing, but the overall performance will not be as good and you may have to deal with overheating of the plugs. This is potentially not worth the added cost of both platinum and iridium spark plugs, although the decision will depend upon your preference.
If you have any other questions about spark plugs and which are right for your vehicle,
Purpose of the Metal
The metal in a spark plug serves a single basic purpose: to channel the electric energy from the plug wire through the spark plug so that it can be forced to the engine block in the form of a spark. Therefore, any metal that conducts electricity at all could potentially be used for a spark plug. The metal should also not get too hot; one of the main problems with some metals is that they overheat quickly, causing the electric charge itself to be compromised and the spark plug to not operate as smoothly.
Copper Spark Plugs
Copper spark plugs are generally considered to have the best performance of any spark plug type. This is potentially different from what advertising companies suggest, but the other metals are, unfortunately, not as conductive in general as copper is. Platinum and iridium plugs are more likely to overheat, which causes damage to the plug components and can compromise the delivery of the spark to the engine block.
Platinum and Iridium Plugs
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity. Platinum has good longevity and the worst performance. Iridium has good longevity and a performance that is decent, which is why iridium plugs tend to be more expensive than any other type. Still, the difference between these plugs in terms of overall quality is minimal, as there is a trade off for each.
Most copper plugs need to be changed every 20,000 miles or so. Platinum and iridium plugs can often go for twice that before they require changing, but the overall performance will not be as good and you may have to deal with overheating of the plugs. This is potentially not worth the added cost of both platinum and iridium spark plugs, although the decision will depend upon your preference.
If you have any other questions about spark plugs and which are right for your vehicle,
ac delco supply NGK , Mr.Belvedere is generally right, but in this case, ac delco oem is the real NGK deal.
tighten the plug to torque spec, undo a half turn and retorque. 15 ft lbs...
tighten the plug to torque spec, undo a half turn and retorque. 15 ft lbs...
Mrbelvedare I hope you notice those acdelcos are mfg by ngk. Also, the stockers are plat tipped but copper core. But are still considered plat. Direct replacement From gm you can get iridium. I've seen more misfires and other issues with Lsjs and lnfs with copper suppressant plugs and I've seen little to no misfiring with iridium which is why they are used mainly. Coppers are fine if they are changed annually. But I will still not recommend coppers.
Mrbelvedare I hope you notice those acdelcos are mfg by ngk. Also, the stockers are plat tipped but copper core. But are still considered plat. Direct replacement From gm you can get iridium. I've seen more misfires and other issues with Lsjs and lnfs with copper suppressant plugs and I've seen little to no misfiring with iridium which is why they are used mainly. Coppers are fine if they are changed annually. But I will still not recommend coppers.
Maven wrote this: he knows.
1. The Spark Plug thread
Lets see here,
2005-10 2.2/2.4 Stock : ILTR5B11, ILTR5C11, ILTR5E11 All of these plugs are virtually identical and interchangeable, its impossible to tell them apart visually except by part number, the "E" plug is most likely only available as an ACDelco unit from the dealer (LTR5IX-11 is a slightly less expensive but still Iridium stock plug)
One step colder: ILTR6B11 same plug as stock listings, just one step colder, this is the stock plug for almost every 2007-8 GM product with the 3.6 V6, as well as 2007 Ions with 2.2/2.4( a slightly less expensive but still iridium one step colder plug is the LTR6IX-11)
Two steps colderThe only acceptable NGK iridium in two steps colder is the LTR7IX-11
LNF stock: ILTR5D (same as 2.2/2.4 plug but pregapped at .035" instead of .043") ac delco 41-102 (12590701) superseded to 41-108
LNF 1step colder: ILTR6A-8G This is an expensive plug, but its the only acceptable NGK iridium plug that comes gapped in the proper range for the LNF. In a pinch you could use the same ILTR6B11 or LTR6IX-11 as the 2.2/2.4, but just know that you’ll have to gap them....something not desirable to do on an expensive IR plug
LNF 2 steps colder: LTR7IX-11 The only 2 step colder NGK IR plug, as above you’ll need to reduce the gap. Unless you’re making stupid power though a #6 at .031" will probably be fine anyway
LSJ Stock: IFR6D10 (Iridium upgrade, I like IR plugs ) Stock Platinum PFR6H10/PFR6T-10G (again almost identical afaik, its jus that one is also an ACDelco plug) Cheapy plugs would be the BKR6E, this should be available everywhere as about 19456million different cars from Audi to Aveo to BMW to VW to Aston Martin use these but they come gapped to .031" which is too small for stock.(though they are conventional plugs so gapping isnt an issue)
LSJ 1 step colder: PFR7H-10(platinum, gapped to stock spec of .040")
BKR7EIX-11 is iridium gapped to .043"
BKR7EIX is iridium gapped to .031"
BKR7E(THE LSJ plug it seems, its just a plain old chapy Vpower gapped to .035" again pretty universal)
LSJ 2 step colder: BKR8EIX (Iridium gapped to .031")
All of these numbers are NGKs, I prefer NGKs, and always use them unless they arent available, in which case I resort to Densos. If you feel like you want to run Autolites or Champions thats on you, but please use this list to cross reference to your favorite brand of plug. If anyone has anything theyd like to add or me to edit please post it up there always seems to be loads of confusion when it comes to plugs.
Please dont ever put LSJ plugs in your 2.2/2.4 just because you went SC
1. The Spark Plug thread
Lets see here,
2005-10 2.2/2.4 Stock : ILTR5B11, ILTR5C11, ILTR5E11 All of these plugs are virtually identical and interchangeable, its impossible to tell them apart visually except by part number, the "E" plug is most likely only available as an ACDelco unit from the dealer (LTR5IX-11 is a slightly less expensive but still Iridium stock plug)
One step colder: ILTR6B11 same plug as stock listings, just one step colder, this is the stock plug for almost every 2007-8 GM product with the 3.6 V6, as well as 2007 Ions with 2.2/2.4( a slightly less expensive but still iridium one step colder plug is the LTR6IX-11)
Two steps colderThe only acceptable NGK iridium in two steps colder is the LTR7IX-11
LNF stock: ILTR5D (same as 2.2/2.4 plug but pregapped at .035" instead of .043") ac delco 41-102 (12590701) superseded to 41-108
LNF 1step colder: ILTR6A-8G This is an expensive plug, but its the only acceptable NGK iridium plug that comes gapped in the proper range for the LNF. In a pinch you could use the same ILTR6B11 or LTR6IX-11 as the 2.2/2.4, but just know that you’ll have to gap them....something not desirable to do on an expensive IR plug
LNF 2 steps colder: LTR7IX-11 The only 2 step colder NGK IR plug, as above you’ll need to reduce the gap. Unless you’re making stupid power though a #6 at .031" will probably be fine anyway
LSJ Stock: IFR6D10 (Iridium upgrade, I like IR plugs ) Stock Platinum PFR6H10/PFR6T-10G (again almost identical afaik, its jus that one is also an ACDelco plug) Cheapy plugs would be the BKR6E, this should be available everywhere as about 19456million different cars from Audi to Aveo to BMW to VW to Aston Martin use these but they come gapped to .031" which is too small for stock.(though they are conventional plugs so gapping isnt an issue)
LSJ 1 step colder: PFR7H-10(platinum, gapped to stock spec of .040")
BKR7EIX-11 is iridium gapped to .043"
BKR7EIX is iridium gapped to .031"
BKR7E(THE LSJ plug it seems, its just a plain old chapy Vpower gapped to .035" again pretty universal)
LSJ 2 step colder: BKR8EIX (Iridium gapped to .031")
All of these numbers are NGKs, I prefer NGKs, and always use them unless they arent available, in which case I resort to Densos. If you feel like you want to run Autolites or Champions thats on you, but please use this list to cross reference to your favorite brand of plug. If anyone has anything theyd like to add or me to edit please post it up there always seems to be loads of confusion when it comes to plugs.
Please dont ever put LSJ plugs in your 2.2/2.4 just because you went SC
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
My 07' came with Iridiums stock from the factory (NGK/AC Delco (IFR6V-10G) Laser Iridium)....
For a stock LSJ, purchase NGK's, stock heat range (6), and torque to the specs Powell listed.
On a side note:
There are so many of these threads, and there was really no need to make a new one.
If you typed lsj spark plugs in the search feature, you would have found your answer w/o all the bickering.
For a stock LSJ, purchase NGK's, stock heat range (6), and torque to the specs Powell listed.
On a side note:
There are so many of these threads, and there was really no need to make a new one.
If you typed lsj spark plugs in the search feature, you would have found your answer w/o all the bickering.
My 07' came with Iridiums stock from the factory (NGK/AC Delco (IFR6V-10G) Laser Iridium)....
For a stock LSJ, purchase NGK's, stock heat range (6), and torque to the specs Powell listed.
On a side note:
There are so many of these threads, and there was really no need to make a new one.
If you typed lsj spark plugs in the search feature, you would have found your answer w/o all the bickering.
For a stock LSJ, purchase NGK's, stock heat range (6), and torque to the specs Powell listed.
On a side note:
There are so many of these threads, and there was really no need to make a new one.
If you typed lsj spark plugs in the search feature, you would have found your answer w/o all the bickering.
Thanks to ppl who offered their help, I really appreciate it
