Curious about vast difference in plug color

DorkMissile · 12-13-2018, 11:03 PM

So I am in the midst of doing a s/c install on my 1SS1LE, and as advised by my tuner I am switching to heat range 7 plugs.

After completing the work - while I was getting ready to throw the stockers in the recycling - I noticed there is a vast difference in color from one plug to the next.

Is this the multi-cylinder condition? Or is it looking to me like one plug is running significantly richer than the other? I am also so surprised how fouled they look for only having 5000 miles on them.

About the car - 4300miles / manual
Oil changed at 100 miles, 500 miles and 1000 miles. Car has had a Elite E2 can on it since it had 150 miles on it (intake has zero oil residue in it). Car had a RotoFab and BDX tuner on it prior (with canned map)

Thoughts?

Joey Soul · 12-14-2018, 06:56 PM

Strange. Probably has something to do with that canned map. I just checked mine last month. 7k, self tuned on hptuners, Intake and header and mine didnt look like that. Clean burn and all even

6spdhyperblue · 12-14-2018, 07:46 PM

The very tip looks clean and not fouled to me. I try not to read plugs unless they are fresh from a pass.

laynlo15 · 12-14-2018, 09:15 PM

One plug looks good, the other 3 look a little too rich on those cylinders.

6spdhyperblue · 12-15-2018, 05:51 AM

Cot? We’re they from the same bank?

12-13-2018, 11:03 PM	#1
DorkMissile Drives: DZ Join Date: Aug 2018 Location: Alaska Posts: 612	Curious about vast difference in plug color So I am in the midst of doing a s/c install on my 1SS1LE, and as advised by my tuner I am switching to heat range 7 plugs. After completing the work - while I was getting ready to throw the stockers in the recycling - I noticed there is a vast difference in color from one plug to the next. Is this the multi-cylinder condition? Or is it looking to me like one plug is running significantly richer than the other? I am also so surprised how fouled they look for only having 5000 miles on them. About the car - 4300miles / manual Oil changed at 100 miles, 500 miles and 1000 miles. Car has had a Elite E2 can on it since it had 150 miles on it (intake has zero oil residue in it). Car had a RotoFab and BDX tuner on it prior (with canned map) Thoughts?

12-14-2018, 06:56 PM	#2
Joey Soul The Mechanic Drives: 1SS M Join Date: Dec 2017 Location: NJ Posts: 304	Strange. Probably has something to do with that canned map. I just checked mine last month. 7k, self tuned on hptuners, Intake and header and mine didnt look like that. Clean burn and all even __________________ BTR 225 w/CNC Heads\|JLT intake\|Speed Engineering 1"7/8 long tube and mid pipe\|LT2 manifold w/95mmTb\|Self tuned w/HPtuners\|Silvers 2Way coilovers\|Hotchkis front sway\|Advan AD08R\|BMR solid cradle bushings\|Recaro SR7\| Work ZR10 19"

12-14-2018, 07:46 PM	#3
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	The very tip looks clean and not fouled to me. I try not to read plugs unless they are fresh from a pass. __________________

12-15-2018, 05:51 AM	#5
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	Cot? We’re they from the same bank? __________________

12-14-2018, 09:15 PM	#4
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	One plug looks good, the other 3 look a little too rich on those cylinders.

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