To all the xB's running supercharges.What type of plugs are you using?( if you would like to share) I remeber eight08customs saying in a thread, to run a colder plug. Has anybody done this, and got somefeedback? Or just opinions on what to run. There are alot of threads on sparkplugs but not a lot mention SC's. So let me know what you think or what you have used on your own setup, thanks. And before you ask,Greddy SC.

to my knowledge it is good to run colder plugs to reduce the risk of detonation

to my knowledge it is good to run colder plugs to reduce the risk of detonation

But is anybody using a colder plug yet and if so what kind and how much colder?

Here is a link to an earlier thread on the same topic:

http://www.scionlife.com/forums/viewtopic.php?t=102139&highlight=spark

Here is a link to an earlier thread on the same topic:

http://www.scionlife.com/forums/viewtopic.php?t=102139&highlight=spark

Thanks Baine, your thread didn't pop up when i searched, a million others did but not that one. So did you go with the NGK's or did you go with coppers like Simplyscion suggested? Got any feedback on the 1 colder plug? And if you did go with the NGK's whas that the model number for them? Thanks for anybody helping with this thread.

I went with the NGK Iridium #BKR6EIX. It idles a little rough but the I'm happy
with them. We will have to wait a while for the long term results.

Thanks Baine for the info. Anybody else changed there's out yet??

My friend did it to his SC xb. He went 2 stages colder and his motor runs much better and there isnt a pinging noise anymore.

I'm still using the stock plugs and no problems. The pinging will stop when you start using 93 oct gas. If you are running a SC you will need to use 93 oct gas from now on to prevent the detonation problem. I've had the SC for about 3 months now and have had no problems at all.

I'm still using the stock plugs and no problems. The pinging will stop when you start using 93 oct gas. If you are running a SC you will need to use 93 oct gas from now on to prevent the detonation problem. I've had the SC for about 3 months now and have had no problems at all.

What supercharger are you running? Are you thinking about running a colder plug?

I really didn't know it would make a difference until I read this post. What plug should I get?

I just got some NGK's 1 stage colder. #BKR6ES. NGK has some good info onthere web site.

http://www.ngk.com/default.asp

I just got some NGK's 1 stage colder. #BKR6ES. NGK has some good info onthere web site.

http://www.ngk.com/default.asp

You notice any differnce yet Rocket? and thanks for the link to NGK.

I'm still using the stock plugs and no problems. The pinging will stop when you start using 93 oct gas. If you are running a SC you will need to use 93 oct gas from now on to prevent the detonation problem. I've had the SC for about 3 months now and have had no problems at all.

he cant run 93, he is CA where 91 is premium.

I see. The 93 oct. is getting very expensive here in Florida. $2.90+ per gal. now. But still we can only buy 10 gallons at a time anyway.

My boss drives a boosted suburban and he said it's $115 each time he fills up!!

I just got some NGK's 1 stage colder. #BKR6ES. NGK has some good info onthere web site.

http://www.ngk.com/default.asp

You notice any differnce yet Rocket? and thanks for the link to NGK.

I have not installed them yet. I will post when I do!

So only two people that have SC's are running a colder plug, there are proably more but they haven't chimed in yet. Both are running NGK's , but two differnet types, #BKR6ES and # BKR6EIX.

BKR6ES- $2.24 each
NGK: Traditional spark plug

14mm, 3/4" reach, 5/8" hex, gasket seat, resistor, ISO length, projected tip

NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.


Iridium:

Iridium is a precious metal that is 6 times harder and 8 times stronger than platinum, it has a 1,200(=F) higher melting point than platinum and conducts electricity better. This makes it possible to create the finest wire center electrode ever. Prior till now, platinum had been favored for long life or performance spark plugs due to its high melting point, also the technology did not exist to machine and bond iridium on a spark plug electrode(at least in a cost effective manner). Iridium industrial spark plugs have been around for years, but still sells for over a hundred dollars per plug. Just now is the technology available to effectively use iridium in a spark plug for automotive applications. The strength, hardness and high melting point of iridium allows NGK to manufacture their iridium ultra-fine wire center electrode to 0.7mm. One of the finest firing points in the industry! (Thus far there has been no problems reported regarding use of iridium plugs with nitrous oxide.)



BKR6EIX-$6.95
NGK: IX Iridium
Iridium IX plug, 14mm, 3/4" reach, 5/8" hex, gasket seat, resistor, ISO length, projected tip, fine wire (0.6mm) iridium center electrode, tapered cut ground electrode, .030" gap

NGK iridium plugs represent the ultimate evolution of spark plug technology and performance. The iridium center electrode is both stronger and harder than platinum. This allows NGK engineers to design an ultra-fine (0.6mm)center electrode reducing the voltage requirement for spark. This allows for a brighter, stronger spark from your existing ignition system. The ground electrode has a tapered cut at the firing end which reduces quenching for better flame core growth and increased ignitability. The combination of fine wire center electrode and tapered cut ground will increase performance, improve acceleration, and fuel efficiency.


So there is all the info on the two, now which one to buy, hmmm. Baine has rough idle issues with what looks like is the better of the two and Rocket has not installed his yet . Hopefully once he does he will let us know if there are any improvments or issues. One thing i didn't ask Baine was... How often does your car have a rough idle all the time or just everyonce in awhile? Maybe soon we will be able to put our finger on what plug will be best. If anybody else has somthing to say or an opinion please do.

As a follow up to the above post. The rough idle has gone away. It was only rough
after a long drive then coming to a stop. The ECU seems to have adapted itself
and fixed the problem. I'm still getting between 26 and 27 MPG. My wife is only
getting 27-28 in her auto 3.0.

As a follow up to the above post. The rough idle has gone away. It was only rough
after a long drive then coming to a stop. The ECU seems to have adapted itself
and fixed the problem. I'm still getting between 26 and 27 MPG. My wife is only
getting 27-28 in her auto 3.0.

Woohaaa Baine thanks for the follow up info, glad to hear the rough ideal went away. I think we are slowly going to narrow this question down, just waiting for Rockets info on his plugs.. And thats still some great MPG even with a SC, i ll take that MPG any day. Thanks agin.

I know crap about plugs. I am currently running iridiums from Champion. Are these colder than stock??

I know crap about plugs. I am currently running iridiums from Champion. Are these colder than stock??

Depends on the model number of the plug..