Dodge SRT Viper Forums : ViperAlley banner
1 - 2 of 2 Posts

·
Registered
Joined
·
323 Posts
You may have used the wrong plugs. Here are the correct plug numbers:

FR5-1 = stock equivalent
BKR6E or BKR6EIX (iridium) = 1 step colder
BKR7E or BKR7EIX (iridium) = 2 steps colder

I was told by John (NGK Tech Support), that if you use a colder heat range for daily driving, it may cause the plugs to foul easily. Colder plugs are good for nitrous application.
 

·
Registered
Joined
·
323 Posts
Mojo - I'd pull those plugs out asap. If I remember correctly, that's the same plug # NX recommended to me initially. I called John/NGK to make sure, and he said it's the wrong plug. Call John/NGK at 877-473-6767, and he will tell you why it's the wrong plug (something to do with resistor and non-resistor type plugs that may cause PCM problems).
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top