Stock vs Iridium spark plugs
#1
Stock vs Iridium spark plugs
Guys, I would like to know if there is an improvement in performance changing the stock platinum heat range 7 to the Iridium heat range 7.
I did not mention 8 because my car is almost stock.
I bought the Ralliart RAY6601 spark plugs, it will be with me in a few weeks.
I did not mention 8 because my car is almost stock.
I bought the Ralliart RAY6601 spark plugs, it will be with me in a few weeks.
#4
Do you know the stock spark plug heat range? I thought that was 7!
BTW, Someone here know the difference between the stock and Ralliart RAY6601 spark plugs?
What are the advantages and disadvantages of going one step colder?
Thanks
BTW, Someone here know the difference between the stock and Ralliart RAY6601 spark plugs?
What are the advantages and disadvantages of going one step colder?
Thanks
#5
the stock plugs are NGK Iridium heat range 7, from what I remember the Ralliarts are NGK, yep just found them here http://www.poweraxel.com/ralliart/ca...e/evo8/c4.html If you really want them tell me, I have a contact that can get us anything listed on the Ralliart website.
#6
Originally Posted by k270kmh
What are the advantages and disadvantages of going one step colder?
Thanks
Advantage............can handle more boost without blowing out
Disadvantage........More likely to foul out than the stockers on regular driving.
#7
something to chew on for you guys, i talked to the dealer and was told that even the factory plugs they use are NGK Iridiums. does this mean they use the BKR7EIX? or perhaps some one-off one that NGK specifically makes as OEM for mitsubishi when it comes to Evos?
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#10
#14
Copper Plugs Does make a bit more power on my car as proven by my butt dyno :P
Hut if you are the lazy type, stick with Iridium stock range which is SEVEN. And stock plugs aer Iridium. Don't ever put the junky Platinum on our car.
Hut if you are the lazy type, stick with Iridium stock range which is SEVEN. And stock plugs aer Iridium. Don't ever put the junky Platinum on our car.
#15
Talked to Todd from from Trick Flow Racing (who used my SC Mustang to prototype an exhaust system). He said that on all the forced induction engines they have engine dynoed, he has never seen a decrease in power when going from a standard plug to Iridiums. He said they dont seem to suffer "spark blowout" as easy as a non Iridiums. He also stated no advantage in an N/A engine.
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