LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

SMOKE at high rpms's what si it?

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Old 08-15-2003, 06:53 PM
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SMOKE at high rpms's what si it?

The smoke looks whiteish and it only happens at high rpms. I noticed it at the dyno today it is not a lot by any means but the guys there said it could be from having an or y pipe no cats or condensation. what do you guys think?
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Old 08-15-2003, 07:37 PM
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it only happens at around 6k rpms. My oil is not milky so probably not blown head gasket. My coolant looks a bit rusty but it always has due to radiator rusting I think, also I am not losing any coolant at all. could it maybe be bc of having no emmissions equipment on the car? no cats, egr, air pump? please help me
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Old 08-15-2003, 07:56 PM
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it could be from not running any cats but im not really sure. it sound more like a head gasket is starting to go even though the oil is not milky.
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Old 08-16-2003, 01:56 AM
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the car will run rich at high rpm, so it's normal to see black smoke coming out when you get close to red line
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