question on NGK plugs
Thread Starter
Melting Slicks
Joined: Mar 1999
Posts: 3,081
Likes: 955
From: Apex NC
Cruise-In II Veteran
Cruise-In III Veteran
question on NGK plugs
Check my sig, my car is a heads cam naturally aspirated, would you recommend NGK TR6 or TR55 and why? What gap should they be set at? I know one is in a colder range than the other but which should I go with and how many miles between changes?
Drifting
Joined: May 2000
Posts: 1,413
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From: Wildwood MO
Re: question on NGK plugs (AVETTE)
It depends on whether you are getting any detonation or not. The TR6 will reduce or eliminate any detonation (spark knock) when bumping up the timing for more power.
Gaps
TR55 = .055"-.060" max.
TR6 = .045" max.
Gaps
TR55 = .055"-.060" max.
TR6 = .045" max.
Burning Brakes
Joined: Oct 2001
Posts: 770
Likes: 0
From: DYER IN
Re: question on NGK plugs (MTWallet)
:iagree:
and in most cases where detonation isn't a problem people with a power adder such as nitrous should and most do go with a TR-6 and most naturally aspirated cars do well on a TR-55
Not to steal this topic and I was going to post about NGK this morning, so i will just add this here:
Has anyone else noticed or maybe its my imagination, but the NGK plugs specifically dont hold up like they used to....
Example I have nitrous on my car, along with a few of my buddies and have been burning the tips of the plugs lately, normally i never have any problems nor has my buddies, I have also noticed the newwer NGK's are silver finish and not the bronze like they used to be. The set-up on all the cars are the same, the plugs are checked and switch out on rgular basis.
I was wondering if anyone else has experience any troubles with them?
and in most cases where detonation isn't a problem people with a power adder such as nitrous should and most do go with a TR-6 and most naturally aspirated cars do well on a TR-55
Not to steal this topic and I was going to post about NGK this morning, so i will just add this here:
Has anyone else noticed or maybe its my imagination, but the NGK plugs specifically dont hold up like they used to....
Example I have nitrous on my car, along with a few of my buddies and have been burning the tips of the plugs lately, normally i never have any problems nor has my buddies, I have also noticed the newwer NGK's are silver finish and not the bronze like they used to be. The set-up on all the cars are the same, the plugs are checked and switch out on rgular basis.
I was wondering if anyone else has experience any troubles with them?
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: question on NGK plugs (Bugster57)
Usually too much timing or too lean an A/F ratio causes the tips of the plugs to burn. But if those haven’t changed since the plugs behaved properly then combustion chamber deposits may be the culprit. A less likely possibility is that lately the octane of the gas in your area has been lower for some reason. If the engine coolant temp has been running higher because of the weather this could be a reason as well. If NGK makes a colder plug than a TR6 (TR7?) that might be the only solution but I would try to identify what is making them too hot first.
As far as what’s best for a H/C car, TR55’s usually are the ones to get.
As far as what’s best for a H/C car, TR55’s usually are the ones to get.
Le Mans Master
Joined: Jun 2003
Posts: 5,409
Likes: 0
From: Kentucky basketball is life the rest is just details
Re: question on NGK plugs (AVETTE)
I would go with the TR55 on a N/A car. The TR6 that I have in mine are there for the smaller gap (.35) to combat spark plug blowout at high boost and because they're colder to combat higher intake temperature due to boost. Both of these problems don't exist on your car. :D
I change mine when I change the oil. It's just a way for me to keep an eye on what's going on in there and after all they're cheap. Just my .02 :flag
I change mine when I change the oil. It's just a way for me to keep an eye on what's going on in there and after all they're cheap. Just my .02 :flag
Race Director
Joined: May 2001
Posts: 15,323
Likes: 2,077
From: Guelph, Ontario
Re: question on NGK plugs (SleepieAce)
When I ran the TR6s in my LS1 Firebird, they fouled out within 13k. This resulted in a severe hesitation at high rpms, so bad that I thought the fuel pump was shot. Swapped to a fresh set of TR55s and the problem was gone.
So if you do go with TR6s (which definitely do help keep detonation lower), make sure you change them often.
So if you do go with TR6s (which definitely do help keep detonation lower), make sure you change them often.
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Drifting
Joined: May 2003
Posts: 1,367
Likes: 0
From: Greenwood SC
Re: question on NGK plugs (Bugster57)
TR55 coppers in a NA engine, sweet, smooth and @ $1.79 ea., tough to beat.
:iagree:
Put them in about 4 weeks ago....very happy. Change your plug wires too if you haven't already. :D
