NKG TR6's: Who's satisfied, who's not?

[03snkvert]

What is the stock number on the NGK TR7ix ?

Never mind.... I found it 3690

 

[lucheski]

I got the TR6IX and they are awesome, I gained about 1MPG

 

[WHT03SVTCOLO]

So what plug is the best to run?
TR7IX #3690
TR6IX #3689
TR55IX #7164
ITR5F13 #6044
XP103
IT22
IT20
Champion IR #9204

 

[SIr RicCuS]

So what plug is the best to run?
TR7IX #3690
TR6IX #3689
TR55IX #7164
ITR5F13 #6044
XP103
IT22
IT20
Champion IR #9204

A lot of people say it's the TR7ix. I couldn't tell you why though... :shrug:

 

[WDW MKR]

A lot of people say it's the TR7ix. I couldn't tell you why though... :shrug:

Because a colder plug gives better protection against detonation in boosted applications. Most will say you should run as cold as you can without causing low-speed fuel fouling.

 

[SIr RicCuS]

Because a colder plug gives better protection against detonation in boosted applications. Most will say you should run as cold as you can without causing low-speed fuel fouling.

So the NGK TR6's aren't as sufficient I'm assuming, right?

 

[WHT03SVTCOLO]

Because a colder plug gives better protection against detonation in boosted applications. Most will say you should run as cold as you can without causing low-speed fuel fouling.

So is it a balancing act to get a hot enough plug but not to hot that it doesn't cause detonation? Parts store computer says I should go wit TR55ix but if I increase boost then should I step to a colder plug a TR6ix?

 

[WDW MKR]

So the NGK TR6's aren't as sufficient I'm assuming, right?

That is entirely dependant on your combination. The TR6 and TR6ix are sufficient for a lot of combinations.

 

[WDW MKR]

So is it a balancing act to get a hot enough plug but not to hot that it doesn't cause detonation? Parts store computer says I should go wit TR55ix but if I increase boost then should I step to a colder plug a TR6ix?

If you're going to the trouble of changing plugs, I would run the 6 with even a stock combination. Haven't seen any adverse effects from doing so.

 

[WHT03SVTCOLO]

If you're going to the trouble of changing plugs, I would run the 6 with even a stock combination. Haven't seen any adverse effects from doing so.

I was going to change my plugs with a 2.76 upper pulley only install. Went to Autozone computer said to run TR55ix...My cobra came with the 22's so are the TR6ix the correct plug for my set up? The added boost you want to step to a cooler plug?