Is there an ideal plug gap for a 500BHP car running 2bar of boost?

Thanks in advance.

 

0.6 - 0.7mm depending....

The plug gap should be as wide as possible within reason so if it doesn't work (misfire on boost) at 0.7 then drop it down....if you run a Group A coil then it should cope with a wider gap due to a stronger spark.

Ultimately, ditch the coil and convert to a coil pack.

 

try around 25 thou mate

 

Thanks guys. The bloody car has a misfire now, so I need to sort that first.