Spark plug indexing... a waste of time???
#1
#4
I just finished changing my plugs to NGK iridiums. My plugs must have been really bad, because for some reason this was the most noticable butt dyno so far. Wow! My car accelerates so much smoother and faster. I also cleaned my MAFS and filter on the pop charger so this could help also. I decided not to index the plugs. Maybe my car is now running like it should have been all along. The plugs had 86K on them.
edit: old plug...
What do you all think?
edit: old plug...
What do you all think?
Last edited by Still2Slow; 12-27-2007 at 07:29 PM.
#5
Originally Posted by Still2Slow
I just finished changing my plugs to NGK iridiums. My plugs must have been really bad, because for some reason this was the most noticable butt dyno so far. Wow! My car accelerates so much smoother and faster. I also cleaned my MAFS and filter on the pop charger so this could help also. I decided not to index the plugs. Maybe my car is now running like it should have been all along. The plugs had 86K on them.
#6
Originally Posted by Still2Slow
I'm getting ready to change my plugs over the holidays and I just bought some NGK iridiums. Wouldn't it be a waste of time to index the plugs due to the location of the plugs in our engines?
#7
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#9
#10
Originally Posted by Still2Slow
I just finished changing my plugs to NGK iridiums. My plugs must have been really bad, because for some reason this was the most noticable butt dyno so far. Wow! My car accelerates so much smoother and faster. I also cleaned my MAFS and filter on the pop charger so this could help also. I decided not to index the plugs. Maybe my car is now running like it should have been all along. The plugs had 86K on them.
edit: old plug...
What do you all think?
edit: old plug...
What do you all think?
#11
i indexed the plugs on my altima and yes, i did feel a difference. and when you index them you want the back of the electrode facing the intake valves. that way at high rpm's the incoming air charge doesnt ''blow out'' the spark. thats mostly for f.i. applications but it does help n/a as well. if you do index your plugs youll either get one of two things, more hp and crisper acceleration at higher rpm's or, your car will be the same. its not like your going to lose any hp. i say just do it. the indexing washers are not expensive ne way.D-O I-T.
#13
Originally Posted by joe603
What do you guys use to clean the MAF? Also, how exactly do you index the plugs?
I'm not an expert at indexing but, you just index the gap to the valves... the problem is that if you torque the plugs, they might not line up right unless you over tighten or don’t tighten enough... so to do it right you need several sets to be sure the threads allow you to tighten properly and have them facing the right direction.
GeePasta is you guy to ask about this stuff, or DaveO (but neither post out here much anymore, which is really a shame)
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