Is a hotter or colder spark better for a high compression motor?

 

colder... usually copper plugs they r like 2 bux a plug.

 

I hear that colder is better for turbo, so i kinda assumed that one level hotter than stock would be good for NA.

 

Why?

 

nah not at all coorect... any hotter running motor wants colder plugs, i.e. turbo high cr and nitrous. n/a high compression can get away with normal range depending on the motor but usually take better to colder. i only run copper plugs in my motor anything hotter and it causes misfires and it to run like ****.

 

I stand very well corrected

 

So whats best for a stock b16a. regular ngk $2 plugs or iridium ngk 9 $5 a piece.

 

i dont think a stock motor really matters i would stick with the stock plug... some ppl may say iridum will do better on a stock motor but i couldnt tell u.