Spark plug gap question

[bmxer89]

Throwing on a 2.76 pulley and a port. I got the tr6 plugs, was looking for a gap size, didn't find much. What the best gap for my setup, I heard like .032-.034?

Click to read more...

 

[ChitownSVT04]

I was told to do .035 I have the same setup minus the port and is working just fine

 

[Zack]

Is this turning into SVTP? The land where everyone is CLUELESS how to gap their plugs properly?

OP, no offense to you. at 15psi, I would personally go no wider than .030, but for my own car I would gap them at .028

Im sure you will get 1 million opinions.

 

[Bob_Kurgan]

i can tell you from dyno testing plug gaps, that most cars make more power with a smaller gap, then a larger gap... there is a CLEANER spark and less chance for misfire under WOT... we personally run my gap at .018 on my race car at 23psi

on 03/04 cobras, i recommend .025-.028

 

[Zack]

Thanks for not making me look like a Tool Bob!

 

[VenomousDSG]

Good thread, i was just about to ask before I put my new plugs in and get a tune.

 

[Bob_Kurgan]

Thanks for not making me look like a Tool Bob!

no comment LOL..

btw, call my cell pls..

 

[wizdawg]

I have a ported 2.93/4# and have had BR7EFS gaped at 0.028" since 2006 and it seems to run good. At times I feel like it might be missing slightly at idle, but if it even is, its almost unnoticeable. I gaped them at 0.028" based on forum recommendations, but them when I had Herman tune the car he suggested 0.032". But since it seemed to run fine at 0.028", I just left it. I may go a little smaller next time I change the plugs.