Spark plugs choice
02-11-2023, 03:27 PM
#1
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Spark plugs choice
I recently had a breakdown due to an open injector on cylinder 7. I changed all injectors, oil an filter plus spark plugs. I have an ecu tune and ipe headers and exhaust and had some kind of special ngk spark plugs. I went for oem spark plugs for the M156 and the car runs fine again after fearing the worst with a petrol filled cylinder 7. I have been told that I do not benefit from other spark plugs (Racing or colder) as long as the tune doesnt exceed 100 whp. The plugs I had in it when the injector failed was apparently from a SLS. What do you guys recommend ? Keep my now original plugs or change them for colder or the SLS type NGK ?
02-12-2023, 07:07 AM
#2
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12 C63BS Magno Alanite Grey, 22 X3M Brooklyn Grey, 08 BMW E93, 22 Ducati Desert Sled, John Deere 3R
Unless you are running boost no real reason to change from OEM specs as you won't see any benefits.
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LARSLEMANS (02-12-2023)
02-12-2023, 01:38 PM
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I tried one step colder plugs, Brisk from Weistec, but they had a miss every once in a while so I switched back to the OEM NGK plugs and have been happy since.
02-12-2023, 01:42 PM
#4
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Just heard from the guy that did the ECU programming, that it is supposed to run on SLS NGK plugs (due to the ignition programming), so I will change the originals
