Coating Cats ??

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Jan 13, 2007 | 06:01 PM

Beatinu

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From: San Antonio TX

Coating Cats ??

Ok from what I think I understand. Cats must get hot to work is that correct so far. Cats also are the main culprit for cabin heat. When coating headers do you normally coat the cats as well. If not would it be a good Idea ? The heat would stay inside the cats but limit the exterior heat. What do you think ???

Jan 13, 2007 | 06:07 PM

TommyV

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From: Sandy Eggo Calif.

St. Jude Donor '06-'07-'08-'09-'10-'11-'12, '16

My LG cats are coated and I've had no problems. One guy said that if they get too hot, they cause the computer to dump more fuel, but my mileage didn't change.

Jan 13, 2007 | 06:44 PM

cbrf4i1

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From: az

Quote:

Originally Posted by TommyV

My LG cats are coated and I've had no problems. One guy said that if they get too hot, they cause the computer to dump more fuel, but my mileage didn't change.

tommy, there is no cat temp sensor that tells the pcm the cats are too hot. pcm use other temp sensors to make this assumption, so coating the cats will not cause the pcm to dump more fuel and i am not suprise your mileage didn't change. btw thoes coat headers / x pipe looks great.

Jan 13, 2007 | 06:48 PM

TommyV

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St. Jude Donor '06-'07-'08-'09-'10-'11-'12, '16

Thanks for the info.

Jan 13, 2007 | 08:01 PM

timd38

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From: Hudson WI

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Question, if the cats are coated and get hot, could they cause a fire? Not trying to be difficult, just trying to understand.

Jan 13, 2007 | 08:05 PM

TommyV

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From: Sandy Eggo Calif.

St. Jude Donor '06-'07-'08-'09-'10-'11-'12, '16

The coating may only get the internal temp up, the outside should be cooler than non coated.

Jan 13, 2007 | 08:07 PM

cbrf4i1

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From: az

Quote:

Originally Posted by timd38

Question, if the cats are coated and get hot, could they cause a fire? Not trying to be difficult, just trying to understand.

it is hotter inside the pips not the outside, which helps reduce cabin heat to a certain degree, so it shouldn't cause any fire from the coating.

Jan 13, 2007 | 09:14 PM

KILR-Z51

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From: Albuquerque N.M.

Quote:

Originally Posted by TommyV

My LG cats are coated and I've had no problems. One guy said that if they get too hot, they cause the computer to dump more fuel, but my mileage didn't change.

Do the LG come coated or how much more did you have to pay for Jet coating.