spark plugs

[ThirdgenTa]

Just picked up some ngk tr6s and some ac delco wires and probably going to change them out tomorrow. What should I gap them at? My autolites are at 0.55 and my car runs fine.

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[G_T_O]

I gap mine at .45 and i have autolites. What's the better plug? I have heard positive reviews of the ngks

 

[bigsammoe]

i run my tr6's at .50 or .55 but running tr55's now at .55 and getting spark blow out up high i believe... still working on figuring whats going on

 

[PANDA]

I gap my TR6's at 53. TR55's might be better for your setup.

 

[Yaj Yak]

silly turbo cars.

my tr6s are at 32 ------ 38 i was getting blowout.

 

[ThirdgenTa]

Ok I am retarded. I pulled out the old ones and guess what? They are TR-6's. I thought I had Autolites in there but I forgot I bought them and exchanged them for the ngks So I just replaced all the plugs and wires with Tr6s again. I gapped them at 0.55 just like the old ones. I couldn't find my round spark plug gapper thingy so I used a ghetto one I had and it slipped and went about 3/8 under my finger nail and seperated it. That hurt. Life will go on though.
Took it for a test drive around the block and seems to be driving fine, no misfire.
I replaced the wires because I was getting a misfire when it was wet out. Didn't notice any cuts in the wires, but there was rust on my coil packs. I just used a brush to clean the rust off. Hopefully this solves my issue.

Also, how long are these supposed to last? I had this last set in for about 35k

 

[ThirdgenTa]

And wtf is spark blowout?

 

[bigsammoe]

cliff notes:: when the air is blowing out the spark plug.. aka not allowing it to fire correctly due to much air mixture.

 

[ThirdgenTa]

cliff notes:: when the air is blowing out the spark plug.. aka not allowing it to fire correctly due to much air mixture.

Weird. How do you know if you have it?

 

[ProjectGTP]

35k miles on the plugs??

 

[Yaj Yak]

Weird. How do you know if you have it?

my car was basically violently misfiring at 4500 rpm+ 10 psi+

from what ive read on cgp... its due to the gnarly velocity in the stock heads due to the turbo and stock cam. that's at least how i understand it.

s/c cars probably won't do it. xsecsomeday was the one who told me to gap my plugs even smaller to make it stop doing it... mine will misfire and pop at idle occasionally... its weird. and also my gas mileage probably suffered quite a bit as well... but fuck it. this is a fucking high performance race car we are talking about.

 

[Eagle]

:stupid:

 

[ThirdgenTa]

35k miles on the plugs??

ya roughly, why?

 

[Yaj Yak]

lol first time i changed my plugs. they probably had 90 k on em...

 

[ThirdgenTa]

Do these look bad?

 

[ProjectGTP]

I thought that with the ngks and autolites its around 3 to 5k miles?

 

[ThirdgenTa]

I thought that with the ngks and autolites its around 3 to 5k miles?

I heard on here someone say that the autolites were 6k miles. I looked on NGK's website and they say 40-60k

 

[PANDA]

I change plugs every 6 months or less.

 

[TommyGloves]

A .55 gap is fine for your mods. FWIW - I get about 2-3 oil changes (12k-18k) out of my TR6s.

Your plugs look pretty good...at least in the pictures.

 

[G_T_O]

Is 45 too small of a gap for my car? As long as I remember I've gapped them at .45

 

[Soulonfire11]

Danny don't you have a 3.4 pulley on your car? I thought your suppose to gap 104s to 50-60 range.

 

[SaturdaysGS]

Well I'd say I'm up for plugs on my car. I think I'm at ~40k for tr6's or was it the 55's?

Intake/header (stock pulley) car should use what NGK plugs??

 

[Angus]

silly turbo cars.

my tr6s are at 32 ------ 38 i was getting blowout.

I just had AL103's put in and opened up the gap to 38/40.

I couldn't stand the misfires at idle anymore. I still have some idle misfires but haven't experienced any blowout at 15/16 psi. Or maybe I just don't recognize it yet...

 

[twol8uluz]

I just put ngk iridiums in (pre gapped) and I get a very slight hesitation on low acceleration since the change. I've been told our cars don't like iridiums. So looks like I need to change plugs again soon. Ugh!!

 

[G_T_O]

Danny don't you have a 3.4 pulley on your car? I thought your suppose to gap 104s to 50-60 range.

I've heard people say .45 or 50-60. Have no clue who to believe lol