best spark plugs to get?????

[n.j.gt]

could someone tell me what would be the best plug i could get for my car. would it be worth it to go with a one step cooler plug. dont know? any suggs would be great. thanks

 

[Jay99]

denso iridiums.

 

[n.j.gt]

denso iridiums.

cool. thanks

 

[NicksBullitt]

I have heard that iridiums are the way to go. However the Denso iridiums were a bit pricey for me.

When I get the time I'm gonna install NGK iridiums set of 8 $50 shipped off ebay.

 

[twogts4us]

cheapo autolite coppers here...no, they won't last as long as these pricey iridiums or platinums, but copper is a better conductor and chging them more often gives you a chance to get a good reading on what's going on inside.
Chging plugs on the SOHC 4.6L isn't really as hard as it may seem. Taking my sweet time, I can do both our GTs in about an hour....maybe an hour and a half.

 

[CaliSS2001]

I love changing plugs on my Cobra, Soooo easy anyways I'm running NGK Tr-55 in my Cobra N/A and Tr-6's in my SS a step colder for my N20 set-up and I love em no probs. ever.

 

[Dstyle00]

Can you pick up the idiums at a place like kragen or autozone? I'm installing a vortec on my car this weekend, and I don't have time to order them online. Thanks for the info.

 

[Fast02]

You can check to see if there is a store near you here

WoW! Only $104 for all eight plugs.

 

[GOLDENPONY]

Plugs

Denso Iridiums here!

 

[Go HoTO!]

Denso Iridiums here!

Coppers! Don't waste your money on all that other crap. Guys with the fastest Mustangs out there use coppers...what does that tell you? You get the best spark with coopper. I use Autiolite 103's (one step colder)cand they are like a $1.25 each. You have to change them more frequently, but they last 15k. You should be pulling plugs and looking at them anyway from time to time to see what is going on.

As far as heat range, you can use one step colder if you want as long as they don't get fouled which they should not. You should use the coldest plug possible w/o getting fouled plugs. So, stay stock or one step colder. In the winter, the colder plugs will cause the car to run rough at first or may even not start.

 

[GOLDENPONY]

Plugs

Coppers! Don't waste your money on all that other crap. Guys with the fastest Mustangs out there use coppers...what does that tell you? You get the best spark with coopper. I use Autiolite 103's (one step colder)cand they are like a $1.25 each. You have to change them more frequently, but they last 15k. You should be pulling plugs and looking at them anyway from time to time to see what is going on.

As far as heat range, you can use one step colder if you want as long as they don't get fouled which they should not. You should use the coldest plug possible w/o getting fouled plugs. So, stay stock or one step colder. In the winter, the colder plugs will cause the car to run rough at first or may even not start.

I have Denso's in two of my cars, my '00 GT(one step colder) and my wife's '90 Miata. Neither car has ever run better. Just one opinion.