brandon_01_ta

i got my plugs and wires changed today and the guy at the shop called and told me that it might not be a good idea to use those plugs because they weren't iridium plugs and that it could cause some kind of melting and cause some serious damage to my motor... but from what i've seen on here the TR55's are the way to go..... so what's the deal with that? and how many miles are those plugs good for?
btw i also used 8.5mm MSD wires with them

Johnsz

iTrader: (7)

thats what ive used on my vehicles with no problem

getusum

iTrader: (42)

I run the ngk iridiums in mine,,,,,I've used the tr55 and tr6's as well.....All 3 are fine...

That guy is a douche....

Lickeyman

iTrader: (1)

Take it to another shop. No joke. I bet they don't even gap the plugs. WTF is going to melt off the plug? Actually the iridium ones can melt off if you run nitrous. NGK without iridium are the preferred plug of MOST lsx enthusiasts (any make,model,yadda yadda actually) running ANY power adder. So if you run nitrous or make more power than stock non-iridium plugs are SAFER. Yes the standard $2 NGK tr55. Tell him to shut up and put em in.

And why don't you work on your car? Yes a plug change is hard but it isn't rocket science and you will feel better doing it yourself. Not trying to be an *** but you WILL feel better.

20-30k on the mileage. Trust me the factory replacements need replacing way way before the 100k claimed.

1FstFormulaV8

I have them in my LT1 my buddy has them in his LS1. No problems so far.

Quick Sh0t xMLx

I use NGK TR6s on my GT, know a few people with TR55s and nobody has ever had a problem at all. When I get my F-Body definitely going to use the TR6s.

brandon_01_ta

yea you're prob right but i gapped the plugs myself so i hope they didnt try to gap them any differently... i went with .055 btw
and believe me i would have MUCH rather changed them out myself but because of my schedule plus lack of tools at the moment, i couldnt...
next time i'll prob try to do it myself... but at least now i'm not worried anymore that i used the TR55's

Sbertolone

iTrader: (5)

i switched the stock plugs on my car around 50k and there was almost nothing left of them. put in the tr55s and put 30k on them and they still look good. the cars runs smoother, idles better, and gets better gas mileage. the iridium stuff is expesive junk. i think i gapped mine between 50 and 60 thousandths, cant remember though.

kicksZ28

iTrader: (33)

Tr55's with no problems.

MeentSS02

iTrader: (11)

I've put some high dollar **** into my car, and I still run the good ol' TR55s. They simply work, and don't break the bank. The last set I pulled out looked GREAT (they had been in for 25-30k).

djsanchez2

iTrader: (14)

TR55's here for over 4yrs. Not a single problem.

SweeTbone

iTrader: (8)

I bet this shop says you have to pull the motor to change plugs also. TR55s here and MSD wires with zero problems. It's funny as a regular fix it shop know so little about LS1s. Prolly 99% of the **** that see are regular passenger sedans so they know dick when it comes to performance parts and not just OEM crap.

RevGTO

iTrader: (12)

Another 100% satisfied TR55 user here.

Blazingz28

iTrader: (5)

I have them in my camaro.

I went to buy some for my girl's v6 and the lady at advanced tried to tell me they were "Import Plugs"

SpaZMaN

iTrader: (5)

Hah, I have a friend whos an import lover, he always says they originally came our with NGK's for imports. I said I use whats works good.


30k miles with Tr-55's here, no problems!

Kingc8r

iTrader: (21)

I used TR6s and MSD wires last time I changed my plugs and wires

Z28/2002

iTrader: (27)

Never had a problem with the NGKs I've ran

blue98Z

iTrader: (29)

TR55's here also. Just put in some new one's with 10.4m Taylor wires. Cars feels better than before.

jmdale1984

iTrader: (6)

I use the TR-55 Iridiums, but a lot of people would say that's a waste of cash. Pulled them at 10k the other day to check em, and all 8 looked perfect.

Doesn't matter too much, I'd say, but NGK TR-55s are used by probably 90% of the people on this site, and I don't think anyone's complaining.

EVIL z28

I use TR-55 and MSD 8.5 wires and they work great.