Originally Posted by
stevieturbo
Quite true. If the ignition system is up to scratch, it's hard to beat cheap copper plugs. And it isnt as if Cossie plugs are hard to change necessitating precious metal longlife plugs.
Originally Posted by
Stu @ M Developments
No its not, but the engine does have an issue burning weak mixtures at low speeds. P + I plugs help this immensely.
Does this apply to CVH's as well Stu (as this is what the OP is asking about), and what P or I plugs would be the correct ones for a turbo CVH?
If P or I plugs means I can run a slightly leaner idle/cruise thats very handy