07-14-2019, 08:13 PM | #1 |
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Bootmod3 and spark plugs
I seem to have fouled a plug at a track event today, having issues with cyl 3 misfiring. Started off really shutting and thrower a soft code. Over time got way better and no more codes but can feel some shuddering.
I’m just running stage1 93 with 94 oct gas and upgraded charge pipes intercooler and downpipe. What plugs are recommended and what are they recommended being gapped to? |
07-14-2019, 08:45 PM | #2 |
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Would recommend running a 91 tune or stock for track days
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18 M2 6 Spd AW - VRSF DP / CP & Race FMIC, ER TIC & GFB DV+ with BM3 Stage 2 Retired 09 135 JB4 G5 ISO w/BEF, N54 Tuning Performance DPs, BMS DCI, ER Charge Pipe |
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07-14-2019, 10:10 PM | #3 |
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Might do that from now on before getting a custom tune, I’ve logged a 93 stage 1 a few times and haven’t seen any knock but I suppose better safe than sorry. I don’t think that would have caused the plugs to foul though?
Any recommendations on plugs and spacing? |
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07-15-2019, 03:04 AM | #4 |
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OEM Bz spec N2x NGK plugs gapped at 0.5mm/0.020"
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07-15-2019, 09:01 AM | #6 | |
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I'm running NGK SILZKBR8D8S spark plugs BMW oem part no 12120039664.
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07-22-2019, 12:04 PM | #8 | |
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12-02-2019, 03:34 PM | #9 | |
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Re these plugs, please can you let me know if you got them from BMW under their part number? If so, did them come gaped correctly (with the gap Bootmod3 suggest) or did you have to alter the gap yourself? My car is in for a service tomorrow and I pretty sure the plugs are due, so will ask them to put in a step colder if possible. Not sure if they will go for it, but worth asking. Cheers. |
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12-03-2019, 01:10 AM | #10 | ||
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I bought them from BMW parts dept and had to change gaps to what I wanted BP
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