Spark Plug Question
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Registered User
Joined: Nov 2006
Posts: 14
From: Jackson, MI
Spark Plug Question
I have a 1997 TA with a PISC procharger, 8lbs boost, 42 lbs injectors.
What color are the plugs supposed to look like.
NGK TR55, gaped at .050 with a accel ignition box (300+)
My plugs are black with white on the inside. (I though white = lean, more fuel)
My fuel pressure is 81lbs at a idle. Is this too much pressure? Not really sure from here?
What color are the plugs supposed to look like.
NGK TR55, gaped at .050 with a accel ignition box (300+)
My plugs are black with white on the inside. (I though white = lean, more fuel)
My fuel pressure is 81lbs at a idle. Is this too much pressure? Not really sure from here?
Registered User
Joined: Oct 2004
Posts: 690
From: St. Charles, IL
A picture is worth a 1,000,000 words when it comes to spark plug reading...any way to post a couple of pictures of the plugs in question???
I'm suprised that you're not seeing some spark being "blown out" with a gap that big. How much boost is the motor seeing?
81lbs of fuel pressure is definately on the high side, BUT, I suppose it depends on the tune. Typically, we run around 40 psi of fuel pressure and it is boost referenced.
I'm suprised that you're not seeing some spark being "blown out" with a gap that big. How much boost is the motor seeing?
81lbs of fuel pressure is definately on the high side, BUT, I suppose it depends on the tune. Typically, we run around 40 psi of fuel pressure and it is boost referenced.
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