What is the usual gap for a Supercharge Engine..

[jrgnd]

Thanks...

 

[Tom]

I was under the impression that the smaller gap helps create a consistancy when firing. When you run boost or NX there is a possibility to "blow out" the spark at higher rpms... So if you are feeling a bog at higher rpms you might try closing the gap some...

 

[mopower1958]

The more pressure you have in a combustion chamber whether it be compression or boost or nitrous, the harder it is for the ignition to fire across the spark plug gap. Even with an MSD ignition you close up the gap with more compression.

 

[Tom]

The more pressure you have in a combustion chamber whether it be compression or boost or nitrous, the harder it is for the ignition to fire across the spark plug gap. Even with an MSD ignition you close up the gap with more compression.

I have to agree. I had trouble around 5500 rpm in my blown car and I dropped the gap about .007 and she ran strong the next run...

 

[jrgnd]

So is 35 good? What does a wider gap do?