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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
The only advantage of muti electrode spark plugs is that they last longer as there are a number of surfaces to burn away!, the spark will still only jump between the core and one of the electrodes - there is only ever 1 path of least resistance for electricity
Splitfires are SHITE! I put them in my very first 21turbo about 5 years ago - earthed the amal valve out - which upped the boost by about 2/3psi - 2 days later I had a hole in my exhaust valve due to the end of the spark plug melting & going through it!!!