I am sure I saw this here, but can't find it now.

SO who has the correct plug numbers for going a couple steps cooler when running N2O? Autolight, NGK, champion.

Also is it .35 gap you set it to?

Thanks.

 

it depends on the size of the shot, if it's only a little 75 shot a stock plug and gap would be fine....

 

Heat ranges:
http://www.accufabracing.com/denso_2.htm

 

Well while I will start w/ low HP, eventually it will be to the 150 shot. So I am guessing 2-3 ranges colder?

 

That page is about right on for every 50hp in boost or spray drop one range down. I have been running HGK in my motor when spraying. Also use the ford motorsports plugs as well. I havent had any probs with them as daily plug to spray now and then.

 

I Like the NGK Irridium plugs for spray and boost.

 

I am a motocraft copper guy :-)

Use whatever your tuner suggests if you can't make up your mind...I am sure you will be happy with the final decision

 

Well Wayne in Vancouver will be the one tuning it so I guess it will be NGK's.

 

Im using NGK UR55 gapped at .032. For a 125 shot.

 

Get Autolite 23's, NAPA can get them next day.... They're perfect, 2 heat ranges colder AND pregapped for .035

I use them religiously for my NX 150 shot, best plugs you can get for a 5.0 on spray.