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Old 08-04-2013, 07:27 PM   #1
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CATS

So tell me how many guys haven't melted their cats with a supercharger? I had a chance to go to a test and tune today(1/4 mile) and I was somewhat paranoid about my cats blowing the motor. My tune hasn't disabled the COT. I just haven't got around to gutting them.
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Old 08-04-2013, 07:41 PM   #2
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I had some high flow...can't remember the name but came from Jannetty. They were shot at 6000 miles of blown use. I was over 650 for most of that time but was 575 for the first couple thousand, and they seemed fine then.
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Old 08-04-2013, 08:50 PM   #3
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So what are you guys with emissions doing? Tuning the car without cats? Then putting cats on the car to emissions test then removing them again?
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Old 08-05-2013, 06:42 AM   #4
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Yep, I have a set in the attic for that purpose. If you can some states have a show car exemption.
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Old 08-05-2013, 07:00 AM   #5
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Hollowed out shells work fine for me
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Old 08-05-2013, 08:29 AM   #6
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see I was going to hollow them out also but didnt think they would pass here in denver without the cats doing what they do to to reduce the emission. Guess its different everywhere.
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Old 08-05-2013, 04:28 PM   #7
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Quote:
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Hollowed out shells work fine for me
Quote:
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see I was going to hollow them out also but didnt think they would pass here in denver without the cats doing what they do to to reduce the emission. Guess its different everywhere.

in California and Colorado they do more than a visual inspection..
all they have to do is use an infrared temp on the cat housing and they will know in about 1 second if you actually have a cat or a shell..
just a thought.. I am sure other states do this as well..
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Old 08-05-2013, 04:41 PM   #8
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25,000 miles on s/c with cats. Still look good.
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Old 08-05-2013, 05:33 PM   #9
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Took cats off. NJ does not visually check. To pass inspection you just can't be throwing any CELs. Cats and boost is no bueno.
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Old 08-05-2013, 07:51 PM   #10
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so should this COT be disabled or not when running high flows with FI and why or why not please
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Old 08-05-2013, 08:54 PM   #11
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I'll be gutting mine once I get in upwards of 600whp+
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Old 08-05-2013, 09:00 PM   #12
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nevermind I found out more about it I am just going to go catless as well I will be selling my highflows they have under 2500 miles on them and only 200 since going FI. If you know anyone looking for them they will be in the classifieds
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Old 08-05-2013, 10:56 PM   #13
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ARH cats . 600 range. No problems yet
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Old 08-06-2013, 11:03 AM   #14
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Quote:
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so should this COT be disabled or not when running high flows with FI and why or why not please
Not, COT is for Protecting the Cats, it adds fuel to cool the cats when they get hot.

I talked about this at great length in the Check your Cats Thread.

Many times the fuel pump and injectors are too small to support the Supercharger and COT fueling together, so not enough fuel to cool the cats.

Ted.
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Old 08-06-2013, 11:12 AM   #15
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100cpi metal cats, Teds tune and more than sufficient fuel...
this department is the least of my worries at this stage of my build!
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Old 08-06-2013, 06:03 PM   #16
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I spoke with Stainless Works earlier today and they are confident that with my set up and Jannetty's tune, I should be just fine. He was talking about many other guys with their high flow cats and a Jannetty tune that are in the 650+ HP range that have had no issues with cats burning up. Just thought I'd throw that out there. He admitted that the "tuner" has a LOT to do with it. Yet again, happy that I chose Jannetty to tune my ride! Thanks Ted!!!
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