3800 Changed front 3 spark plugs

[SaturdaysGS]

Cylinders
1--3--5


-The Autolite 104 Copper plugs are about 10-15k miles old
-3 is the "whitest" had a gap of .66 (cylinder I have been getting misfires on)
-5 is "tanish white" had a gap of .64
-1 has a little white forming at the tip of the arm had a gap of .62
-I have not run any fuel additives, and run only 93 octane.
-My ltfts are in the negatives constantly, I have a 97.5 is it backwards for us where negative is positive and positive is negative? I know it reads something like that with the timing when scanned IIRC. I could be wrong.

edited: forgot to mention the car only misfires after being WOT more then a few times, the first time or two it'll be fine, but the more it happens, the more it acts sluggish when downshifting and hesistates then misfires. I am going easy on it from now on, dont need a chipped piston.

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[1quick]

genral rule of thumb white is lean golden brown just like a perfect marshmello running good verry dark or black runing rich now if one cylinder is runing lean I'm not shure what would cause that but If I remember right the center cylinder in the front and back are prone to run more lean than the rest but if you look at a dhp file they have them tuned richer than the rest to counter this lean condition, not shure if they do that form the factory though


brett

 

[SaturdaysGS]

Hmm.. I do have a DHP, so maybe I need the injectors cleaned??

 

[zeez gtp]

why are they gapped so big?

do they expand overtime?

 

[SaturdaysGS]

I have no idea, but I know when I put them in they were gapped to only .54, that was at around 10-15k ago, closer to 15.

edited: Whenever the Mod day at Harvard was.. so maybe 15k ago..

 

[syP]

see ya tomorrow nick

 

[MIKES3]

Originally posted by SaturdaysGS@Feb 23 2006, 10:51 PM
I have no idea, but I know when I put them in they were gapped to only .54, that was at around 10-15k ago, closer to 15.

edited: Whenever the Mod day at Harvard was.. so maybe 15k ago..

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I hope you mean 0.054 or .055

 

[SaturdaysGS]

Haha yeah .054

the old ones then were .06#

F' this car!

Btw: I put the 3.3" pulley on lastnight and saw.. 13.9Lbs of boost at the top of second.

 

[MIKES3]

Originally posted by SaturdaysGS@Feb 24 2006, 01:47 PM
Haha yeah .054

the old ones then were .06#

F' this car!

Btw: I put the 3.3" pulley on lastnight and saw.. 13.9Lbs of boost at the top of second.

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I would gap your plugs to .055

 

[1quick]

what other mods do you have 13.9 sounds right for that pully if you are mild moded


brett

 

[SaturdaysGS]

HAI, 3' DP w/highflow cat, GTP catback, no resonator, ported/coated exhaust manifolds, DHP.

 

[Royalgtp]

I still remember the kid who said he wasnt going to do anthing with the car...

 

[SaturdaysGS]

Originally posted by RoyalGTP@Feb 24 2006, 08:27 PM
I still remember the kid who said he wasnt going to do anthing with the car...

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Where do I sign up for MA (modders anonymous)? :lol:

 

[1quick]

lol I was affraid to do anything to my car now I am trying to be the fastest regal in the country lol