360 Modena Red Cats - Ferrari Life
 
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post #1 of 6 Old 12-14-2010, 06:12 PM Thread Starter
 
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360 Modena Red Cats

Hi All,

Today I noticed, after a long drive that, in the dark I cn see some part of the cats glow. Is this supposed to be normal? I understand that cats work at really high temperatures but no idea how much is OK.

Thanks
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post #2 of 6 Old 12-14-2010, 09:43 PM
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I don't ever remember seeing my cats glow but it does get very hot in the 360 engine bay. Hence a challenge grill is highly recommended.
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post #3 of 6 Old 12-15-2010, 04:10 AM
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i'm no mechanic, but i believe there is a sensor that will tell you if they get too hot.



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post #4 of 6 Old 12-15-2010, 04:56 AM
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If they overheat, the dreaded check engine light will come on.
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post #5 of 6 Old 12-15-2010, 08:25 AM
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There are a few threads over on that "other" site, including pictures of cats glowing red. However, there doesn't seem to be consensus on whether that is "normal" or not.

As an engineer, I will hazard a guess: Most metals will begin to glow red about 800 degrees F. By 900 degrees or so, glowing cats would be visible in daylight. So, depending on how close the cats are to the exhaust ports, I think it is reasonable to expect they could get red hot. This is why some manufactures have placed ceramic coatings on their exhaust manifolds (Jaguars come to mind). This reduces the radiated heat in the engine compartment.

So, as Boxer states, I think if they were "too" hot, the CEL would illuminate.
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post #6 of 6 Old 12-15-2010, 06:59 PM Thread Starter
 
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Thanks guys. I also checked with the local dealer and they can't say if there is a problem just by the cats glowing so it measn that it could be a normal thing (...if that's the only thing going on of course).
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