I have searched using "vortech" and "spark plugs" as my key title words, and the only definitive answers I could seem to find were from 2003 (I had actually posted in one thread I found from back then ). Not sure if anything has changed in the last 8 years or not, but what spark plugs do people recommend for a low boost (8psi) supercharger setup these days?

 

I have a Vortech V3 with the 8 psi pulley and I run NGK BKR8EIX's

 

Pick up a set of NGK BKR8EIX (2668) and be a happy camper no matter how much boost you run.

These are one step colder than stock and will run in a stock S2000 just fine.

I'm running them with 20+ psi. They are Iridium and will last for a very long time.

 

Thanks guys

 

Hay Phil good to hear your still around, been to C&C lately to scare the domestics ??

 

What size gap are you using with the these?

 

Gapped from the factory. Not to be gapped. Mine were all very similar in gap.

 

X2. Been using these for 18 months or so now boosted with a Vortech kit. Been great!

 

I just switched mine out last night, was having some hesitation issues and for the short drive I did under WOT and various other accelerations, the
new plugs (still the NGK's) seemed to correct the issue. I had done about 6k miles including ~300 miles on track with those plugs. Obviously I
could have gotten a lot more out of them if I hadn't done 2 days on track in >95 degree heat.

 

8's are too cold for most setups and will likely foul out sooner than 7's. I think people are quick to jump to the colder plug. That 907whp s2000 is running 7's with no sign of blowing out spark on the street or at the track.

http://www.ngk.com/more_info.asp?AAIA=&pid=32418