Just wondering what everyone recommends for spark plugs in a 2.4L NA. im planing to buy em next payday, A Part Number would also be perfect..i want the best "preformance" ones

thanks again CSS.NET community

 

no idea for a n/a but i bought 2 step colder for use with my n2o. and i have to say that the engine runs much smoother with them. they are made by zex. i also hear good things about ngk plugs

 

I got bosch platinum 4s and they were not really any different from the delcos,some say ngk coppers are best for us.

 

sorry for jackin ur thread, but if it works good on a N/A wood it work good on a 2.2 too?

 

i dont see why it wouldnt..

mike can u get me a part number..?

 

Bosch Platinum are horrible spark plugs, dear god take those out. and The platinum-4 is just a marketing scheme it doesnt do anything, it can only fire off of one electrode

 

Really? I've had them for a year and they've been fine. IF so, what should I change them out to.

 

i have the bosch +4 platinum and they work great. no problem so far.

 

I had ngk iridium ix in mine for a while, they worked fine, I wouldnt say any better than stock though. I pulled them out to look at them and they all started life gapped at 0.042 and after a couple months 3 had opened up to 0.043 and the other had opened p to 0.045 so I put the stockers back in but didnt notice a difference, I still have the ngks for when the stockers go south. I dont think youll notice much of a difference if any by changing spark plugs unless the old ones are worn out

 

Yea, mine were probably the biggest waste of money ever...a guy I work with said they are good with higher out put ignition system....so don't really know. I think my next kind will be the NGK's.

 

im not going with the bosh ones..the guy at canadain tire didnt even recommend them lol..whats the NGK ones i want?

 

i put bosh's in my oldd 2.2 and it missfired from day one. i just used autolite platinums and never had a problem. im not sure what to use for a performance app tho.

 

Guys, plugs aren't going to do anything to help you out. The stock plugs are perfectly fine and probably the best bet for your engine unless you upgrade to F/I or N2O. If you just have bolt-ons, just grab some stock AC Delco's and be on your way.

 

lol its best if everyone that was wondering gives Edubs a "too shay"

 

how much are ngk copper spark plugs? they r recommended for the 2.4 s/c

 

^What he said.

 

What about Autolite Extreme Plugs ... thats what i was thinking about going with when i got to about 60k??

 

Stock AC Delco are better...

 

What's the best range of mileage to change them at? This is my first new car. I have like 32k on it now. All of my other cars I just changed the mas soon as I got them so it didn't matter. But I figured it'd be about time by now...

 

Technically, they're manufactured to last 100K, but we all know how these things go. Changing them every 30K is a bit neurotic, but it won't hurt anything. It's not like you're dropping a new engine in, this kinda thing won't break the bank...

 

Exactly. I could care less about 30 bucks. I'm a sucker for 100% over-maintencing my car. haha

 

I personally wouldn't use bosch or champion. Autolite, NGK, AC Delco are the best choices. JUST DONT USE COPPER PLUGS. The 2.2L and 2.4L come with double platinum plugs from the factory. These are not the cheapest and Chevy didn't use them just to waste money. The ignition in our cars is a "waste-spark" system; it fires twice as often as a conventional ignition system. It fires once on the compression stroke from the center to the side electrosde and AGAIN on the exhaust stroke from the center to the side electrode. The is caused by a polarity-reverse from the coil. DOUBLE PLATINUM PLUGS ARE REQUIRED for any kind of decent plug life. Your car will run on the $1.50 copper plugs, but the plugs wont last long due to the fact that they are pulling a double duty they were not designed for. The term "Double Platinum" means that both the side and center electrodes are platinum (stronger than copper). 2x platinum plugs will typically go 80-100K miles in GM cars.