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Old 05-14-2006, 03:59 PM   #1
Frank de Jonge
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Changed plugs but got a problem I think......

Hey guys.

Maybe some out here can help me with this.

I've changed my sparkplugs this weekend and the old ones where all 6 white instead of brown how they should be......

I'm running the M50 intake manifold.
Ported and polished head.
Schrick cams .
CAI.

When plugs are white usually the car is running lean right??

What can I do to this problem???

Bigger Injectors??
Custom software perhaps??? (which I'm planning to do after some other mods to the engine)

Can someone help me out here???
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Old 05-14-2006, 04:32 PM   #2
Justin e36
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Need more information than just.. "it was white".

Take some pictures of the sparkplug tips close up and we can give better advice as to what the problem is.

If the insulators were white, and the electrodes were melted.. then you have a problem with preignition, the plugs are the wrong heat range.

If it was a white/gray color, then they're running too hot.

The could be ash on the plugs over-worn, glazing.. all types of things.. we'd have to see it to understand better.
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Old 05-14-2006, 04:38 PM   #3
Frank de Jonge
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Here is a blurry picture of the 6 old ones.

On the picture they look darker then they realy are.

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