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Forum namePerformance/Engine
Topic subjectPlug Gaps.
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=71237
71237, Plug Gaps.
Posted by Blizare, Mar-22-04 06:53 PM
Okay. I never check my plug gaps when I put the new NGK's in. Sue Me. Anyways, I decided to pull them out today cause of a little sputter/misfire. They were all .44, shouldn't they be .60? I think thats what I read????? So I gapped them to .60. Now it's being a little wierd atill. What is correct? I don't wanna search. NooBs!...search!
71242, RE: Plug Gaps.
Posted by speedtek, Mar-22-04 07:31 PM
hmmm, im havin the same problem with my car....when i give it gas or even when i floor it sputters, studders, pops and all that crap... i replaced the plugs with some Bosch (heard worst brand to buy) but oh well...yeah the day i instaleld them it ran fine, but the next day, the porblem even got worse... so i did some readin and the gap should be between .40 and .50 if im not mistaken....thats what ive read in the search forums.....but thats juss my 2 cents

71243, RE: Plug Gaps.
Posted by bullox, Mar-22-04 07:48 PM
~ .050 for NA
71250, RE: Plug Gaps.
Posted by Blizare, Mar-23-04 02:49 AM
COOL! Thanks
71251, RE: Plug Gaps.
Posted by DR1665, Mar-23-04 02:59 AM
90% of the misfire problems here can be solved with new plug wires. Get the Bosch at AutoZone for like $30 and a lifetime warranty. Should take care of it. If you've never changed them, now might be a good time. If they don't solve the problem, further investigation is required. :P
71256, RE: Plug Gaps.
Posted by Blizare, Mar-23-04 04:36 AM
Brian, There ain't no Autozone here...lol But anyways, I just bought new 7mm Wires. I'm gonna gap at .50 and go from there.
71260, RE: Plug Gaps.
Posted by ez, Mar-23-04 06:57 AM
People seem to gap anywhere between .035 to .05 for our cars. I gap to the smaller range, b/c the gap expands over time. I gapped my previous set of plugs to .035. When I changed them later (when the car was stuttering) I remeasured them and gap increased to .05+. Last set of plugs I happed to .039
71312, RE: Plug Gaps.
Posted by JWoodley, Mar-23-04 04:36 PM
im at .065 which is what howell recommends for the SD coil. =)
71347, RE: Plug Gaps.
Posted by Blizare, Mar-24-04 05:42 AM
I gapped at.060 and it kind of stuttered under throttlr. So I droped it down to .050. Now she runs and idles nice.
71375, RE: Plug Gaps.
Posted by JWoodley, Mar-24-04 11:04 AM
Originally posted by Blizare
I gapped at.060 and it kind of stuttered under throttlr. So I droped it down to .050. Now she runs and idles nice.



Do you have any ignition upgrades?
76572, RE: Plug Gaps.
Posted by miamilakeseclipse, Jun-25-04 10:17 AM
Soryr to bring this back from the dead. I hace msd 8.5mm wires & ngk plugs, waht should i gap the spark plugs to? looks like ~.50 seems to be the number
76582, RE: Plug Gaps.
Posted by EclipsedChef, Jun-25-04 05:43 PM
i have ngk wires and plugs(one range hotter) and i have them gapped to .042, it seems to give me the best idle, acceleration. But then again i have a weird hesitation problem that no one can solve so go figure