Spark plug gap?
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Spark plug gap?
Whats the rule of thumb for spark gap? What should you decrease the gap per every 50hp?
475rwhp motor should have a .xxx plug gap
same motor + 150 shot .xxx
same motor + 200 shot .xxx
same motor + 250 shot .xxx
475rwhp motor should have a .xxx plug gap
same motor + 150 shot .xxx
same motor + 200 shot .xxx
same motor + 250 shot .xxx
Team Owner
Joined: Jul 2003
Posts: 20,474
Likes: 2
From: Detroit
Re: Spark plug gap? (Phil97SVT)
I think spark plug type and gap selection is also influenced not only by hp level, but, by how the hp level is achieved. For example, in the FI world many of us are using NGK TR6 plugs (generally gap'd between .32 and .35) as an effort to prevent pre-ignition.
Mark
