most likley be running around 28-30psi gt35r trying to reach 500whp

 

try .021

 

VIII or IX? Ignition upgraded or stock? What fuel? The reason I ask is I'm on E85 and sparktech gapped @ .022 with bpr8es on my evo 8. I still have misfires every now an then at 27psi. Thanks!

 

Try coil on plug upgrade. You'll be surprised at how much more gap you can run.

 

Are you using an M&W CDI box?

If so M&W recommend to use a non resistor plug, and a BPR has a resistor.

 

^^^ Non CDI unit. Once I change oil and new plugs (bpr8es) I'm gonna try .020 and see if that helps.

 

i might try these plugs at .024 and if that does not help then ill shoot out and go smaller ill prob just order some more and fool around just in case these go bad from gap

 

I heard that too small of a gap will worsen MPG's.

 

Mine are tight (.022), and I still average over 20mpg on a tank, with mostly in town driving.

 

.022-.020 some where in there.

 

I run .020. Just did my plugs yesterday . Car feels alive again and runs so so so much better

 

Good thing u got that extra half tenth of a thousandth in there lol. The feeler gage must have just not rubbed quite as much.

 

I've been told by most tuners to set at .020

 

Like stated above, I've been told by most evo tuners to gap at .020

 

Spoolinup' COP changed my car! I used to run NGK coppers gapped at 0.21. I now have the COP kit and Iridium NGK's gapped to 0.26. Everything has changed for the better. The car was great, now it's amazing! Mods below in my sig.