i'm about to install my vortech supercharger w/aftercooler. trying to find some good spark plugs to go with????????????

 

stock and a step colder

 

NGK 7173's are popular for a SC.

Moving to FI

 

I was having a rev limit problem and put in a set of Iridiums, one heat cooler than stock, at Viper's recommendation. That seems to have totally solved my problem. I forget the actual make and model number off hand. I just also talked to the Vortech Paxton tech guys at the SEMA show in Vegas who also advised me to locate the black box out of the engine compartment and to gap the plugs in a supercharger application a little tighter .032 -.035. Also he advised that on the newer units they are adding an auxuillary injector.

 

There have been numerous posts lately on which Spark Plugs are best. It seems the most popular right now are the NGK 7173's (Copper), which are one heat range colder. I recommend though if you do invest in a set to check the gap every 3k miles just to make sure it is right.
I have been using these on my Comptech Unit - which saw 7psi for about 4k miles and 11psi for about 2k miles. I now have invested in a set of NGK 7405's (Copper) which are two heat ranges colder - since I am turning up the boost a bit more.
Hope this helps.

 

wheres the best/cheapest place to get the NGK?

 

They're only $1.98/per from autozone.

 

i thought they were more, just like everything else for the s2k

 

Stock ones are like $16-18.00 per. My jaw dropped when my total bill for all 4 7173's was less than $9!

 

Plan on taking out a loan if you go with iridiums!!