TORCHD 02 TA

iTrader: (39)

What plug should i run for my application? I am currently running TR6 plugs, but is that too cold?

I was reading on NGKs website that the TR55s are for a NA motor. And the TR6s plugs are for high compression motors or N20....

I am currently running the TR6s plugs in my CAM ONLY stock H/I car. I am making 415/378 at the rear.

Now in the spring i am adding 42# injectors, 85mm Lid, 85mm Maf and an E-CutOut.

Should i be running the TR55s or TR6 plugs? What should they be gapped?

Soul TKR

iTrader: (4)

you were telling me to go TR6's this whole time and you don't even know what kind you wanna use?

TORCHD 02 TA

iTrader: (39)

i know i am such a shiit. but you have a higher compression motor. so if i were you i would use the TR6 plugs.

I have been using TR6 plugs, i am cam only and NA.. That is what my tuner told me to use. So i have been reading and been getting mixed reviews...

Strahley

iTrader: (4)

I'd just stick with the TR6s. I run them on mine when I'm NA (obviously not spraying every moment that engine is running), and I don't notice it running any different than with the TR55s that were in here before

jmm98LS1

iTrader: (28)

No need to run the colder plug for what you've got, but it's not going to hurt anything or make any difference in power.......the colder plug just won't last as long. If it were me, I'd probably run the 55's in your car.

vsocks1

iTrader: (6)

You should be fine with Tr55's!

TORCHD 02 TA

iTrader: (39)

i keep getting mixed results

99firehawk

iTrader: (1)

If it matters or not, I have run stock pluggs, Denso's, TR55's, and now a few months with TR6 in my car. I have not noticed any diffrence other than slightly less detonation with the TR6's (but I also put in a 160' thermo at the same time). I will stay with the TR6's. I cant remember the gap, I think I set them to .40

Runing just a bunch of bolt on mods on the LS1...

LS6427

iTrader: (2)

Detontation....you have a problem with your engine if you're detonating. 160 t-stat has nothing to do with detonation or plug choice.

LS6427

iTrader: (2)

TR55 or TR5 is what you want, gapped to .050

Those two plugs are identical plugs, just gapped differently from the manufacturer.

highgear

I've had the TR6's in since 2003 and they have not missed a lick. Gapped at about .045 I think.

davidz28man

iTrader: (11)

Run the tr6 plugs they may not last as long but there a good plug and only $15.00 a set I,m spraying so I may gap mine a little diffrent. Mine are at .043 Thats what my tunner bluecat(phill) told me and they always worked great.

Damian

iTrader: (89)

There's absolutely no reason to run a TR6 plug on an N/A cam car or heads/cam car.

TR55's, and gap according to your compression ratio.

bww3588

iTrader: (49)

I run tr6's in my car gapped to .036 but I have 11.3:1 compression.

hitmanws6

iTrader: (20)

run the TR 55s

muayyadf1

I heard TR6 plugs handle more timing = more power.

TORCHD 02 TA

iTrader: (39)

Been running TR6s on my car since 2006. Not 1 problem. I am making 420/385 at the rear

Cam only on stock 241 heads

SOMbitch

iTrader: (8)

We make virtually the same power and my tuner who sprays a low 8 sec car at 160mph told me tr55's. I trust he knows what is best.... I am at 10.7 compression and gap at .050 IIRC

TORCHD 02 TA

iTrader: (39)

Hey man I am going off of what my tuner told me too! Dunno what to tell ya.

I am running the colder plug with 0 problems

muayyadf1

They reason for me to decide running tr6's is they minimize engine knock when ECT goes above 210. It's very hot here in SA