It appears that number 3 isn't gettin enough fuel. Ill list mods quick.
Accell injectors 15lbs part number 0101128 they have about 6 races on them.
1.6 ratio crane roller tip rockers.
Custom cold air intake.
Custom duel exhaust, exits just under the car.
Gasket matched intake and heads.
180 degree T-stat.
Removed EGR valve.
It has stock internals except whats listed, have to run the automatic trans.
Now to the problem. The car has been perfect up until 2 weeks ago. I was running the feature, and with about 3 laps to go we had a caution. As we ran around under yellow, the car started to miss. It never got any better, went from leading to finish second, to a ffffford.
Well I pulled the plugs the next day and the number 4 cylinder plug was snow white. (I run bosch platinum) So I chenged the plugs, changed fule filter, and ran injector cleaner through it. Took it out this past Friday and it idled fine, ran fine, till I got about 4 laps into the heat race, then it started the miss again. Same thing in the feature. Pulled the #4 and 6 plug, 4 looks a bit light, but they really didn't have enough time on em to get a good color. So i changed the injector and put a different throttle position sensor on it since my old one had the tab missing. Started the car afterward, and let it run, was smooth during idle and reving, but when I tested it in front of the house after it warmed up, it started the miss again, I really noticed it if I power break it at about 1500 rpm.
I am wondering if maybe the coil packs are going out once they heat up a bit? Thing I don't quite get is the plug color. Maybe I should run a conventional type plug?
