Right now the car is running great. Aside from dialing in the AFR, no misfires and no KR. Your right, I don't want to fix it if it ain't broke. I was just wondering if I should be doing something different with the plugs. I saw an article that LGM is using the TR6's gapped at .048" (I think) on the AFR's milled to 59cc with the G5X3. That what got me wondering. I have a C5 so pulling the plugs and changing the gap isn't an issue. I am installing a set of Jesel SS's next wekend, so I will probably pull the plugs then so I can turn the motor over to get the lifters on the cam base for the install.

 

My new AFR H/C setup I'm running .045 on a TR55 plug.

 

Please look at what people are gapping the IRIDIUMS at...you are not supposed to mess with the gaps on the IX plugs.

 

Ok, not regapping. Leaving at factory setting. I must have had a brain fade and not taken into account the TR6's from LGM were not Iridium. Thanks!

 

You should be running the TR5 plug. It's the same heat range as the TR55, but comes out of the box at .039, compared to the TR55 which comes out of the box at .059. Spark plug makers recommend you should only change the preset gap by .010 either way. So the TR5 is much closer to where you want to set the gap. If you go too far from the preset gap, the ground to electrode relationship isn't as square anymore.

 

Cool, I'll go pick some up. I haven't fired up the new motor yet so no harm no foul.

 

There it is.