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hammering the cat converter 200 84Turbo

posted by  someone claiming to be David McArthur ['81 240, 68K, B21F, M46(OD)] on  Mon Dec 4 05:06 CST 2000 [RELATED]

Car starting fine after hammering the cat is not really strange. I've had mechanics swear to it. The explanation lies in the contrasting ability of the engine to run fine (which itself demands very low horsepower and produces a small amount of exhaust) and it's total lack of "guts" when you stepped on the accelerator. The back pressure developed by the broken off internal in the cat robbed you ("I wuz robbed!") of the horsepower that should have been developed by the engine. With a richer exhaust can easily come burning in the exhaust manifold and extraordinary heat at the manifold and turbo.





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