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Forum namePerformance/Engine
Topic subjectPlug gap with Ignition boxes, do you increase it?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=48770
48770, Plug gap with Ignition boxes, do you increase it?
Posted by Kirby, Apr-10-03 05:49 AM
When you install a new ignition unit do you change the plug gap? I will be installing the Crane box here in a little bit and I wanted to know what the plug gap would change due to the added power of the spark.
48774, RE: Plug gap with Ignition boxes, do you increase it?
Posted by Michael_97RS, Apr-10-03 08:29 AM
The instructions for the CD Box actually state what gap to use depending on turbo NA etc. If memory serve They say to increase gap to .045" (stock being .035")



15.9 @ 86.7mph

Injen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC
48781, RE: Plug gap with Ignition boxes, do you increase it?
Posted by J, Apr-10-03 09:09 AM
Gap 4 N/A is .050 & Turbo is .035 (I think on the turbo)

P.S.
That's stock

- J
48785, RE: Plug gap with Ignition boxes, do you increase it?
Posted by shuwa29, Apr-10-03 09:56 AM
i too am wondering this. i've had the msd dis-2 for 2 years now and i'm wondering about somethings:

1. should i go with a hotter plug and if so what should i go with(meaning part number...i prefer ngk's)
2. i am running ngk wires now but should i get some better ones like magacore or msd or what?

thanks guys.
later
48835, RE: Plug gap with Ignition boxes, do you increase it?
Posted by shuwa29, Apr-11-03 08:47 AM
bump.
later
48845, RE: Plug gap with Ignition boxes, do you increase it?
Posted by fly1, Apr-11-03 10:08 AM
If you are N/A, the NGK wires should be fine. As for the plugs, you could run hotter plugs. I've always used NGK's: bkr5e's for N/A cars and either stock or one range colder for turbocharged cars. I'm currently running stock plugs because I didn't/couldn't tell any difference between the 7e's (one range colder).
48955, RE: Plug gap with Ignition boxes, do you increase it?
Posted by Kirby, Apr-13-03 08:07 AM
Yeah the crane says na is .45 but does not give a spec for turbo. Should I stay with .35 then?
49019, RE: Plug gap with Ignition boxes, do you increase it?
Posted by Michael_97RS, Apr-14-03 05:29 AM
I find something very interesting. Neon 420A recommended plug gap .035" our 420A recommended .048" hmm...



15.9 @ 86.7mph

Injen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC