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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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