What plugs for ported pullied eaton: ngk tr6 or ngk tr7 (iridium)

[spidartanks]

I have done a lot of research and it seems that everyone seems to be split 50/50 between the ngk tr6 and the ngk tr7

I want the iridium plugs so between these 2 what is the preferred plug and why is it a better option over the other?

My mods as of April will be:
Ported eaton blower and intake w 2.8 pulley
Return style fuel system
Borla stingers

In a couple of months after I save I'll add:
Bassini offroad xpipe
4lb lower pulley
Jlt intake

Looking to get over 500rwhp for the summer! *Looking to go viper hunting lol

Advice on what plugs to order please and thanks?

 

[spidartanks]

Gapped at .032 seems like the money gap too?

 

[tedster429]

I have the TR-6 gapped at .32 on my posi ported eaton.

 

[spidartanks]

Like I said its a 50/50 split?

Why do people run the tr6 vs the tr7 and vice versa?

Is there more power benefit to running the coolest plug aka the 7?
Just looking for a little reasoning as to why one over the other?

 

[tedster429]

Like I said its a 50/50 split?

Why do people run the tr6 vs the tr7 and vice versa?

Is there more power benefit to running the coolest plug aka the 7?
Just looking for a little reasoning as to why one over the other?

No power difference. Basically, if your running more boost than you can go colder bud IMO your fine with either or.

 

[spidartanks]

Yeah I assumed either or I was just wondering if there is. Benefit?

I guess it's like fuel injectors, stock 39s are good for 500hp but 60s are good too. If not better!?

I'm thinking I'll order the 7s?

 

[SVTDice]

People run a colder plug IE the BR7EF which is the copper version of the TR7 for the reason that it has anti-detonation property's. I run the BR7EF at .032 However I'm planning on opening the gap a bit. Maybe .035

The objective is to have the coldest plug without fouling and the widest gap without blowout. But honestly, Either one is a good plug. I have no issues with the BR7EF. Its a little bit on the cold-er side but it is safe to run for a port and pullied car.

 

[cobracide]

Running TR7IX gapped at EDIT .035

 

[SVTDice]

Running TR7IX gapped at .042

.042? No blowout at all? How does it run? I'm curious. That seems a little wide.

 

[TRBO VNM]

Guys, big difference between .032 and .32.

.032 would be accurate in what they are trying to tell you.

 

[cobracide]

.042? No blowout at all? How does it run? I'm curious. That seems a little wide.

You are correct, just checked.. they are .035 - updated.

 

[SVTDice]

You are correct, just checked.. they are .035 - updated.

I'm thinking of opening mine up to that. I have mine at .032 I think they are a bit close to be honest. What do you think, Open them up and give them a shot or leave them as is?

 

[Senkak]

Guys, big difference between .032 and .32.

.032 would be accurate in what they are trying to tell you.

Oh come on. Why can't I gap my plugs at more that 1/4"??:shrug:

I run the NGK TR6 gapped at .030
Idle is smooth and no spark blowout issues at 20+lbs.
Plus if I foul a set running a lot of leaded gas they are only $2 each.

 

[mmustangsrus]

tr-6`s here gap @ .032 posi ported eaton 2.76/ 4# lower

 

[SVT_Troy]

I'm running TR7IX's gapped at .028 but think about switching to the BR7EF as the iridums are tricking expensive to have to replace after you foul a set out.....

 

[GodStang]

Why do people still run crap iridum? NGK 7985 all the way. Tested best plug and under $2.00 each. Also do not break like iridum all the time.

 

[04dreamcobra]

well just a question. im running 20+ lbs of boost on a whipple 2.3, which plugs would the community recommend? tr6 or 7? also gapping?

 

[earico]

Why do people still run crap iridum? NGK 7985 all the way. Tested best plug and under $2.00 each. Also do not break like iridum all the time.

+100000

If you do the research copper is the better conductor and doesn't retain as much heat as iridium. Iridium plugs are great for long maintenance schedules. I don't care to have my plugs last 50,000 miles. I change my good ole copper plugs at every oil change.

 

[05satinGT]

I am also curious, my is a non-ported 2.76 upper car and I was wondering what plugs to get. So tr-6's?

 

[cobracide]

20k miles on TR7IX Iridiums and no issues. :shrug: