Spark Plugs..
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Spark Plugs..
Are the new AC/Delco Iridium Professional spark plugs better than the NGK TR6 plugs for daily driving?
Thanks,
Rsty
Thanks,
Rsty
Last edited by SLPRC5; Apr 25, 2006 at 03:50 PM.
Racer
Joined: Mar 2004
Posts: 338
Likes: 0
From: Lancaster Ohio
First off let me say that this is just my opinion. 
Unless you're spraying or running FI most people run the TR55's instead of the TR6's. My opinion is spark plugs now days are leaps and bounds above what they used to be. I feel you pretty much can't go wrong with any good named plug. You'll normally get tons of miles out of just about any plug. On my cars I tend to stay away from overly expensive plugs and keep it simple and basic. I never have issues with plugs but like I said this is all just my opinion.
Unless you're spraying or running FI most people run the TR55's instead of the TR6's. My opinion is spark plugs now days are leaps and bounds above what they used to be. I feel you pretty much can't go wrong with any good named plug. You'll normally get tons of miles out of just about any plug. On my cars I tend to stay away from overly expensive plugs and keep it simple and basic. I never have issues with plugs but like I said this is all just my opinion.
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by 0rion
First off let me say that this is just my opinion. Unless you're spraying or running FI most people run the TR55's instead of the TR6's. My opinion is spark plugs now days are leaps and bounds above what they used to be. I feel you pretty much can't go wrong with any good named plug. You'll normally get tons of miles out of just about any plug. On my cars I tend to stay away from overly expensive plugs and keep it simple and basic. I never have issues with plugs but like I said this is all just my opinion.
Unless you're spraying or running FI most people run the TR55's instead of the TR6's. My opinion is spark plugs now days are leaps and bounds above what they used to be. I feel you pretty much can't go wrong with any good named plug. You'll normally get tons of miles out of just about any plug. On my cars I tend to stay away from overly expensive plugs and keep it simple and basic. I never have issues with plugs but like I said this is all just my opinion.
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
I went with NGK TR55s. For $20, I have no problem changing them after a few thousand miles. To me, Im uncomfortable with running plugs over 100K. GM used them just because they last longer and the LS1/LS6 has really bad placement of some of the plugs.
Iridiums or TR55s, I dont think anybody can go wrong. I own turbo cars and Im just comfotable with good old copper cores. Platinum and Iridium may be OK but I'll stay with the copper ones.
Iridiums or TR55s, I dont think anybody can go wrong. I own turbo cars and Im just comfotable with good old copper cores. Platinum and Iridium may be OK but I'll stay with the copper ones.
Pro
Joined: Mar 2006
Posts: 583
Likes: 0
From: OKC OK
The TR55's. They range from $1.50-$3.00 each. My opinion is to run them 15-30k anyway, so that's what I use on normally aspirated apps, and TR6 on boosted or nitrous apps. I run .050" on the 55's, and .032-.035 on the TR6's, in a power adder app.
Using the iridiums or platinums are fine on any normally aspirated application, albeit more expensive.
Using the iridiums or platinums are fine on any normally aspirated application, albeit more expensive.
Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by hex
The TR55's. They range from $1.50-$3.00 each. My opinion is to run them 15-30k anyway, so that's what I use on normally aspirated apps, and TR6 on boosted or nitrous apps. I run .050" on the 55's, and .032-.035 on the TR6's, in a power adder app.
Using the iridiums or platinums are fine on any normally aspirated application, albeit more expensive.
Using the iridiums or platinums are fine on any normally aspirated application, albeit more expensive.
Thank everyone for their input.
Rsty
Last edited by SLPRC5; Apr 30, 2006 at 12:36 AM.
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Thread Starter
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by see5
Seems like the TR6s will remove 3-4 degrees of KR.
Thanks,
Rsty
Pro
Joined: Mar 2006
Posts: 583
Likes: 0
From: OKC OK
Knock Retard. I have not seen the different designs of spark plugs cause them to either advance or retard. If you have a nasty old set in there, and you put some new ones in, the knock retard you may have had with the old nasty plugs will go away. I have only seen this in extreme cases, like the one that had 5-90k plugs, and 3 splitfires in one engine. A new set of TR55's, and it was as if it was tuned again.
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
Originally Posted by RstyNutz
Tuner advanced my timing2 degrees for cruising speed 80+ mph with the TR6 plugs...what is KR???
Thanks,
Rsty
Thanks,
Rsty
Last edited by see5; Apr 30, 2006 at 06:59 AM.