NGK-TR55 plugs right for these mods?
08-11-2009, 01:22 PM
#1
Racer
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NGK-TR55 plugs right for these mods?
I'm debating what plugs to put in. Its a 98 soon to be pushing around 420 whp. Cam but no heads. Is the TR55 right for me? Would I be better off with Iridiums?
I'd like longevity but not if it means sacrificing performance.
I'd like longevity but not if it means sacrificing performance.
08-11-2009, 03:55 PM
#3
Le Mans Master
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I ran the Tr-55 until I broke 450 rwhp. Now if you are using nitrous you definitely need to upgrade to a different plug. I think you will be fine with the Tr-55s, just know you will have to change them every 20k miles or so.
08-12-2009, 12:00 AM
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Melting Slicks
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St. Jude Donor '13
You won't need 6's until you add a blower, turbo, or possibly nitrous, depending on how big a shot.
