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-   -   Ignition issues (https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/ignition-issues-327338/)

Thegoose97 01-22-2019 06:49 PM
Ignition issues
 
Hey guys, recently bought my 07 cobalt ss, maybe 2 months ago. I'm not 100% on all mods done previously. Stage two clutch and stage 2 pulley system. She's pushing 15lbs from the stock S/C

What spark plugs/ gap spacing are you guys using? Stock says .035 and the ones I pulled were all right around 0.048. and I've read some people go as low as 0.025. can't get a clear idea for what I should try
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currently waiting on ZZP for some high voltage lsj coil packs. Any other advice? Or should I just keep playing with gap spacing till she runs right?

Johnny Bliss 02-07-2019 06:24 PM
stock is .043

my engine won't rev past 6000rpm with that big of a gap.

i have mine around .030

Flarfignewton 02-10-2019 12:38 PM
With those mods you should run 1 step colder plugs from stock at .035 gap. I believe they should be NGK BKR7E


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