Posted: Sun Apr 15, 2012 11:18 pm Post subject: spark plugs...
Coming up on that time to change my plugs again. They were changed at 75k and I'm about to hit 130k. Can't hurt to change them early, plus I've been getting a little bit of KR* that I want to kill & I think that changing the plugs can't hurt because they're not too expensive to change just as a precautionary measure.
Would it benefit me any to get Autolite 104's? A 1-step colder plug? I get a SLIGHT misfire under WOT load in the upper RPM range. I want to change the plugs and wires to rule that out. My next step would to check all the coil packs.
_________________ 2002 Impala LS 3.8 -121,749 miles 11/13/2011
2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
2010 Malibu LTZ 3.6 - 16,014miles. 8/20/2011.
IMO, there is no reason to run anything other than 41-101s unless you are highly modded. Did you swap the wires out last time you did the plugs? If not, I'd start there with either AC Delco wires or some PRJs if you plan on hanging onto the car for a while
Protip: If you don't know what you're doing, don't do it.
Yeah, honestly until you do top swap or start getting into cams or valvetrain work, the stock ones should be fine.
I've got everything up until rockers done on my mod list, and running stock heat range plugs (zzp wires) with no problems. I will be doing ER rockers (LS6 springs just got here today) soon, so I can report back if you want once I have rockers in and a retune done and see what happens
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