This is near perfection correct? This is pulled right after a nitrous run...Somewhere between a 150-175 shot....

 

Cant read it with those pictures
Here is a great link on reading plugs
http://members.uia.net/pkelley2/sparkplugreading.html

 

Thanks dude....Thats the **** right there!

 

hard to see it good but it Looks rich to me.


Here is a good pic of mine on a 350 shot......

 

Is that a TR6 plug? if so you might want to try a step colder.

 

Yep that's a TR6....Man I went to the BR7EF's and melted a plug....Yea I know I dont understand it either but I have had no problems with the TR6's...

 

If I melted a 7 I would have went to an 8 and backed the timing off more.

What timing are you running on the motor? how much do you pull for the 150 shot?

Did you drive to the track on those plugs? they have alot of color on them for 1 pass.

 

Im running 24*....Those are the daily driving plugs....They just got a lot browner after I leaned it up....They were all black and sooty...I have an 11.5 AFR on Nitrous, I wanted to lean it up a little and went up on the N pill...This is what I got...It used to be black where the brown is now.....

 

24* when your spraying? how much do you pull for 150 shot?

It needs to be leaner and it will go faster.

put a new plug in right before the pass then kill it at the end of the track and pull it... best way to know for sure whats going on with it.

 

Yep 24* when spraying...No KR on the dyno or 3 1/4 track runs while data logging...I keep the same tune so I dont have to switch for motor/nitrous

 

Did your knock sensors go off when you melted the plug? They aint gonna save your motor.

What timing does the motor like N/A?

I pull 6* out for 150 shot. Which is 19* total for me.

 

It starts KR'ing at 28* on motor...

 

I Run 28-29 Na And About 20-21 On A 150 Shot

 

You guys have to stop using knock sensors for timing tuning. just put the timming in that runs the best MPH on the motor ATV is right the plug should not be a 6 and if you melted a 7 put an 8 in and pull more timing. lack of timing will not kill it so put 19-20 in it and get the A/F correct. cut it down like atv did and post that pick but you can't drive around on the plugs or it will mess up the reading. Put a a fresh set of 8's in and cut it off at the stripe switch out 1. then do it again and pull the 1 with a single pass and one with 2 passes. cut them down and post them up. Id bet A/f needs to be 12.2 at its richest. maybe 12.5