Just curious as to whose changed their spark plugs out, and what they're using now? I've got 42,000 on my stock plugs, so I figure it wouldn't hurt to get some new ones. I'm either gonna try those new E3 diamondfire plugs out, or maybe get some NGK iridium's. Any input?

 

I know Celicabalt has some NGK iridium's (in his sig).

Im curious if he tried a colder plug or not with the turbo.

 

Do spark plugs make a difference ?

 

Only if you are having spark related issues.

 

If they are old you could lose some power.

If you are adding nitrous or forced induction, you need to go several steps colder on the plug as well.

 

Yeah, im aware plugs arent gonna make a huge difference. But since mine are well overdue for changing, I figured i'd see what other people had switched the stock ones out for.

 

I run NGK BKR7Es, I change them about every 10K miles, but thats only because I run nitrous and they are cheap, I've never really noticed a difference. I was cleaning up the other day, and I found 3 sets of used plugs that came out of my car.

 

im running the ones in my sig 1 step colder but i would rather have copper plugs with my boost.

 

Plugs Make A Difference The Better The Ignition Source The Faster The Explosions The Faster It Moves The Cylinder, Am I Right?

 

The stockers are the best for N/A....and don't get any Bosch unless your looking to get an aftermarket ignition system, big waste of money.

Not the faster the explosion, the better the explosion. You want a bigger better spark or pulse so you burn all the gasses. And not the faster it moves the cylinder, more gasses you ignite the bigger the explosion so the more power you get. Or something like that lol....

 

If your running stock Id just get the same plugs. If you feel like changing them go ahead. I usually change mine once every few years but not very often. The stock plugs in our cars work pretty good. They have too to make that little four cylinder run effeciently and make decent power.

 

I chaged mine at 100000km's and they looked great, with slight wear.

 

if you have higher than stock boost you use colder plugs do a search\nevermind i see your not boosted

 

How often should I change the spark plugs? I have over 50K miles on the stockers. Also what type would be recommended for full bolt-ons(I/H/DP/E)...i mean would it make a difference? And would changing spark plug wires make any difference on the NA engine? I don't know anything about ignition systems

 

or cars in general lol

 

hmm...real funny... I asked a question and i get dissed instead. Who are you to tell me what i don't know? You don't know me and you sure as hell don't know what i do and do not know. Sure i asked because i don't know much about that subject due to the fact that i never really messed with that stuff. All the work done on my car was done by me. All engine mods and exterior mods. So you really can't say i don't know anything about cars in general. So yea, I know enough to work on the car. Anyways..if you're such a fountain of knowledge why don't you answer the questions instead of making rude comments?

 

what youve experienced above is the NORM here unfortunately. people who dont know the answers will fall all over themselves to make a smartass comment, or yell "do a search!".

gm says you can go 100K miles on your plugs, but since its so easy to change them, you are best off changing them early so there are no problems with corrosion, etc ruining your threads. 50K or 30K is probably good. and these engines dont use plug wires, so no worry there.

 

Yea i know what you mean. Ask enough questions and it's bound to happen. Anyways, thanks for the input chief. Since i have over 50k on mine i'll probably change them out soon.

 

with some basic research ive done.

the Stock Bosch plugs (while expensive), are the best setup for a N/A setup.

If you were turboed or supercharged, id go 2-3 steps colder, and make sure its a copper plug.

Basically, when your running your car, (with a turbo/supercharger) it tends to build heat.

At higher coolant temps (on my Stock N/A plugs), i would misfire like a ************.

If i had 2-3 steps colder, it would ultimately help my coolant temps (to an extent), and quite possibly help with my misfires.