have the same question...what kind of spark plugs are most ppl using..denso iridium or ngk? or ne thing else

 

I use the Denso iridiums.They are expensive but worth it.The NGK iridums are cheaper(price).Platinium is good for longevity,but not performance.Platinum is not a graet electrical conductor.Copper is good but has to be changed more often because its a soft alloy.Iridium is the best of both worlds.4x as hard as platinium and 2x the melting point but less resistance than copper=more spark at the plug.

 

...hardness would not help sparkplug life, only resistance to electrochemical breakdown would. Hardness is a marketing ploy. Iridium do last longer, but it has nothing to do with the hardness of the material.

 

Hardness is what keeps the gap intact.And yes it has everything to do with why they last longer.

 

thanks for the info guys

 

pictures and all

http://www.scoobymods.com/forums/showthread.php?t=511

http://www.scoobymods.com/forums/showthread.php?t=3017

 

approx how long does it take to swap out the spark plugs and is it pretty easy...especially with the coil on the plugs? i am used to yanking out the boot wires, but wondering how much different this is...thanks for the info and the scoobymods link is helpful also

 

Depending on the tools you have i would say its a good 1hr-1.5 hour job.Make sure you have a good sparkplug socket(bushing intact/inside).The bushing/grommet is what holds the plug in the socket.

 

short number for the plugs is 4793 NGK those are the factory ones

long is pfr6g

 

I ordered mine from www.sparkplugs.com and they arrived quickly and were well packaged. I highly recommend them, as some plugs are hard to get from auto retailers.