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Suitable Spark Plug For Supercharger Engine

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#1 sam138


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Posted 26 November 2021 - 03:41 PM

Could anyone recommend a suitable NGK spark plug for the following spec supercharged 1275 engine please ? I've guessing as this is tuned and runs hotter that a cooler plug is needed ?



1275cc engine  suck through  m45 supercharger set up with hif 44 carb 


- Aldon electronic Ignitor fitted inside my old 59D distributor body. 


- Running with a Aldon amethyst mapping unit. 



The car runs but seems to take a some time to fire or doesn't on the first try like the spark is weak and I feel the current NGK BR7ES might not be suitable ? 



I've installed a brand new starter motor and coil etc when building the engine so can't see any of these being an issue. 

#2 nicklouse


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Posted 26 November 2021 - 06:44 PM

Then try a 6 and see how they look like after a run.


how do your 7s look after a run?

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