Sparkplug questions???
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Evolving Member
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From: St.Marys,Georgia
Sparkplug questions???
i just got tuned again and am getting knock..i think my plugs may need to be changed..i made 355hp and 344tq..my question is..Should i go to a step colder plug..and if so,which one..and why are the plugs for the evo 9 so damn expensive??any help appreciated..justin
did you purchase and install any aftermarket underbraces?
I had an issue not too long ago where my carbing 6point underbrace was loose and missing a bolt and under boost would rattle ever so faintly and caused my car to knock!
Check your factory braces if you dont have any aftermarket ones and make sure they are tight.
Exhaust rattles can cause knock too.
Seems like your making good power for your mods.
I had an issue not too long ago where my carbing 6point underbrace was loose and missing a bolt and under boost would rattle ever so faintly and caused my car to knock!
Check your factory braces if you dont have any aftermarket ones and make sure they are tight.
Exhaust rattles can cause knock too.
Seems like your making good power for your mods.
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Evolving Member
iTrader: (1)
Joined: Apr 2006
Posts: 217
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From: St.Marys,Georgia
Thanks for the compliment..I was happy with the power scott squeezed out of my motor..Ill check the braces 2morrow..But i have 23000 miles on the car now..Probably wouldnt hurt to change the plugs..Justin
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