Spark Plugs
 

Has anyone had a problem with stock plugs failing out? Because I think mine did after stage 1 and boost control. Need Info.....

RE: Spark Plugs
 

get ngk's or denso's. the stock champions are junk. mine went at about 2k, i've been using ngk's since.

RE: Spark Plugs
 

Are you only having problems under hard acceleration? You could be experiencing spark blow out which is common with forced induction. I have used just about ever spark plug and I am sticking with Champion, I've never had a problem with them and they work great for me.

RE: Spark Plugs
 

I realize I work for a Spark Plug company... but I would strongly suggest replacing the Champions. There is a quality issue (the Champion not having a high quality) here. I, of course, would reccomend the NGK's, but any plug with a heat range similar to the LZTR5AIX-13 would work.

RoadRunner... spark blow out? could you elaborate?

RE: Spark Plugs
 

i would also strongly suggest replacing the champions. even mopar recommends the ngk's now.

RE: Spark Plugs
 

Normal driving is fine. Under partial or full throttle car putts and backfires. Tried adjusting the boost controller ordered NGKs. will install tomorrow. Hopefully problem is solved. If not could it be my boost setting?

RE: Spark Plugs
 

What is your boost setting?

RE: Spark Plugs
 

It's a condition that occurs in forced induction where the spark plugs spark is literally blown out under WOT, high RPM's and/or high boost. This is one of the reasons to get good spark plugs and good plug wires. The stronger the spark the less likely this is to ever happen.

I guess I must be the only one that has had great luck with Champions.

RE: Spark Plugs
 

My set boost is 25%
My gain is set at 23%
Set gain at 145 or in Kpa 1.00 (15 lbs)
Car is running at 15 psi consistently on low boost setting. Have not adjusted high boost setting yet. Just installed NGKs today. The car isn't backfiring anymore. Stock plugs were seriously carbon failed. Ordered MSD coil anyway because I have the wires. Should be in soon. I think I'm going to turn the low boost setting up to 16 psi.

RE: Spark Plugs
 

sorry, but what are the "ngk's " and where can you get these since everyone seems to be changing to them???[sm=smiley25.gif]