Which NGK Plugs to Use?
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From: Mantelli Drive, CA
Which NGK Plugs to Use?
On a 98 vvti SC400, which plug do you recommend if I'm running a 75 wet shot of nitrous.
pfr6g-11 = 1 step colder
pfr7g-11 = 2 steps colder
pfr6g-11 = 1 step colder
pfr7g-11 = 2 steps colder
Is the stock plug on the 98 vvti hotter than the pre-vvti motors? I know the heat level is 6 on the earlier models. According to what you're saying, the heat level on the 98 is a 5....
I don't have any experience with nitrous, so I cannot tell you. But call NGK tech support and they can and will assist you.
Ryan
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