Spark Plugs
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Le Mans Master
Joined: Jan 2008
Posts: 6,457
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From: corpus christi Texas
Spark Plugs
I have a 08/Z51,with a cam,long tubes,K/N and borla stingers.It is tuned to 448 to the wheels.I'm pushing 48,000 miles.I want to change out the sparks plugs and I'm not sure which one to use? I have read many threads on plugs on this forum.Most say NGK,i have heard that Denso plugs are great also ?.So help me make up my mind on the right plug....Thanks..Enjoy the Super Bowl 
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I have a 08/Z51,with a cam,long tubes,K/N and borla stingers.It is tuned to 448 to the wheels.I'm pushing 48,000 miles.I want to change out the sparks plugs and I'm not sure which one to use? I have read many threads on plugs on this forum.Most say NGK,i have heard that Denso plugs are great also ?.So help me make up my mind on the right plug....Thanks..Enjoy the Super Bowl
Elmer
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Le Mans Master
Joined: Jan 2008
Posts: 6,457
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From: corpus christi Texas
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
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Elmer
Safety Car
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From: Maryland
The LS9 (638hp) plug is also the Z06 (LS7) 505 hp plug which I have been using of late in my bolt on LS3. Don't know if anything has improved or not but the car runs fine. I will get around to checking them sometime.
Drifting
Joined: Oct 2004
Posts: 1,790
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From: STL MO
St. Jude Donor '09-'10
Unless you have increased your compression from stock all I would recommend you doing would be to replace the plugs with a new set of stock AC Delco's and a new set of MSD plug wires.
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
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From: corpus christi Texas
I have MSD wires on it now.Which NGK is recommended ??
Last edited by Cherokee Nation; Feb 5, 2012 at 10:47 AM. Reason: Add
Safety Car
Joined: Sep 2006
Posts: 4,075
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From: Wilmington NC
The TR5 for stock compression, the TR6 (colder plug) if your SC'd.
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
Last edited by j_digi454; Feb 5, 2012 at 11:34 AM.
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Safety Car
Joined: Apr 2010
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From: Maryland
Talk to people who have been around the block a few times.
Most people "think" that using something different is better than OEM; well the AC plugs for the newer C6 are "top shelve" plugs made by a top shelve company and the stock plug wires are hard to beat too in the real world, period. 
PS: Do a little research.
Race Director
Joined: Dec 2005
Posts: 11,885
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From: God's Country, ID
The TR5 for stock compression, the TR6 (colder plug) if your SC'd.
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
I've been running TR6's (TT set-up) and change them out every 3500 miles. At $2/each it's cheap and I like having fresh plugs on an FI set-up. 
With all due respect, the stock wires are single crimped and junk. More than once I've seen the oem plug wires come apart, where the wire is crimped at the boot, when just attempting to separate the wire from the spark plug. MSD spark plug wires are worth every penny.
Last edited by DSOMC6; Feb 5, 2012 at 04:38 PM.
Drifting
Joined: Oct 2004
Posts: 1,790
Likes: 29
From: STL MO
St. Jude Donor '09-'10
good call on the MSD wires, they should serve you for a while. As mentioned, the NGK TR 5 is the correct replacement plug but I prefer the AC Delco's on a stock headed LS2 NA setup.
I've been running TR6's (TT set-up) and change them out every 3500 miles. At $2/each it's cheap and I like having fresh plugs on an FI set-up.
guys are having great results with the LS9 plugs for FI setups
With all due respect, the stock wires are single crimped and junk. More than once I've seen the oem plug wires come apart, where the wire is crimped at the boot, when just attempting to separate the wire from the spark plug. MSD spark plug wires are worth every penny.
Mine came apart on me the second time I had to remove them when doing my header swap, the MSD's are a great replacement wire!
I've been running TR6's (TT set-up) and change them out every 3500 miles. At $2/each it's cheap and I like having fresh plugs on an FI set-up. guys are having great results with the LS9 plugs for FI setups
With all due respect, the stock wires are single crimped and junk. More than once I've seen the oem plug wires come apart, where the wire is crimped at the boot, when just attempting to separate the wire from the spark plug. MSD spark plug wires are worth every penny.
Tolero Apto Victum
Joined: Jul 2007
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From: Woodlands TX
I have been using http://www.briskusa.com/ for many many miles with no problems, as always each to their own.
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
The TR5 for stock compression, the TR6 (colder plug) if your SC'd.
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
See the following link.
http://www.ngksparkplugs.com/part_fi...uv/results.asp
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
I've been running TR6's (TT set-up) and change them out every 3500 miles. At $2/each it's cheap and I like having fresh plugs on an FI set-up. With all due respect, the stock wires are single crimped and junk. More than once I've seen the oem plug wires come apart, where the wire is crimped at the boot, when just attempting to separate the wire from the spark plug. MSD spark plug wires are worth every penny.
Race Director
Joined: Dec 2005
Posts: 11,885
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From: God's Country, ID
Are the NGK's only $2.00 a piece?? I checked on the Denso plugs on Parts House Warehouse & they are on sale for about $16.00 a plug,must be a good plug ? Those plugs that Gering is using are expensive also.I look at it this way,the more it cost the better the product is (could be wrong tho)
Oriely's matches the lowest price I found (which is $2/each).
http://www.texas-speed.com/p-102-ngk...ark-plugs.aspx
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
The Iridiums are expensive. I use just the standard TR6's because the car is a twin turbo set-up and I change the plugs every 3500 miles.
Oriely's matches the lowest price I found (which is $2/each).
http://www.texas-speed.com/p-102-ngk...ark-plugs.aspx
Oriely's matches the lowest price I found (which is $2/each).
http://www.texas-speed.com/p-102-ngk...ark-plugs.aspx