How Or can you re gap Iridium Spark Plugs ? They are gaped to .31 And I need to drop them down to .25 w/out messing them up....
like how high are we talking here? i am planning on running about 10-12 lbs. what should i gap them to then?jdub said:At stock boost, they will. High psi boost on the std gap plugs = high rpm miss.
SupraDreamPDR said:like how high are we talking here? i am planning on running about 10-12 lbs. what should i gap them to then?
IJ. said:I was getting blowout after 16 psi dropped the gaps and it was fine at 20 until I did a few sustained high speed pulls and it developed a high speed miss I think was the fine tip glow plugging.
IJ. said:JDub: Pre-Ignition yes correct !
Swapped em out for same heat range Coppers same gap and it was fine to 7700 sustained