11-20-2011, 09:03 PM | #29 | |
I used to be Dragoneye...
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I'm curious....do any of these Hi-flow cat's claim to be for use with FI applications? Nope. Because they've been designed from the factory to handle their own power, heat, and pressures. I'm not sniping at the aftermarket when I say this...but there is an inherent advantage to OEM equipment where durability is concerned... |
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11-20-2011, 09:24 PM | #30 |
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The ones I know of are all FI motors( one a built stroker motor with less than 5000 miles)
In Febuary,when the TVS goes on my car the cats are gone. |
11-20-2011, 10:31 PM | #31 |
Ooops - sorry - 600rwhp
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11-20-2011, 11:03 PM | #32 | |
Camaro SS Lover
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Quote:
My engine actually went; piston #6 damaged too. I've done research on my exhaust and supposed to be the best of the best from the partular vendor I used. However, I'm still going to have my CATs looked at just to make sure they're not melted. I don't want 2nd. motor busted if this was the cause. There was no detonation, no codes, but valve bent, and hole in piston. We just assumed it was due to crappy hollow GM exhaust valves and we should have changed them along with the rest of the head assembly. This is quite rediculous in my mind. I can't get my head wrapped around, upgrading exhaust, with HF CATS which are designed for high performance engines and they melt, blowing back into cylinders? I don't understand that logic. I've never seen a vendor quote their CATS will melt if more than x-hundred HP. There is really something very wrong with this picture, and I agree with 69 Rebel could be cause for lawuits if this is in fact causing engine issues for most people. Might be a good idea to post brand and model of CATS everyone has to get the vendors and / or manufacturers to pipe up and let us know whats going on or how to avert this type of issue. Buying CATS just to gut them, just to avoid a blown engine doesn't seem the way to go. |
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11-20-2011, 11:14 PM | #33 | |
Building the Beast
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interesting.....cant believe it.
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11-21-2011, 09:33 AM | #34 |
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Interesting.... I have a rattle in my left HF cat.. I've not opened the pipes to look at them though..
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11-21-2011, 09:44 AM | #35 | |
Drives: Has Wheels Join Date: May 2011
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Quote:
I wonder if these cars (ZL1 and GT500) will start to see stock cat issues when the power is raised to the levels some folks have on here 600rwhp or more). It's so true though, OEM and aftermarket parts may have two different ideas of what "quality" components are. Now I'm trying to figure out whether I should sell my High Flow Cats (JBA) that I haven't installed yet, and just go with Mid-pipes without cats. I don't want to have future problems with the cats. Once I get them installed and have the car retuned, I plan to hit 600-650rwhp. |
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11-21-2011, 09:54 AM | #36 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
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Most Cat Converters are Sized and designed around the Cubic inches of the Engine.
In this case 6.2 Liters, they will live a Happy and Productive Life. Add a Supercharger with Say 7-8 PSI they 6.2 Liter Engine just became 9.3 Liters which far exceeds the Cat Design which causes Overheating and Failure. The Cats need to be Double they're current Size to handle the Additional cubic inches. Ted.
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11-21-2011, 09:58 AM | #37 | |
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Quote:
I wonder if it would be better to go with mid pipes w/out cats. High flows would be a waste of money if they keep blowing out all the time. I'm nervous about this and I'm on the stock cats. |
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11-21-2011, 10:26 AM | #38 |
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11-21-2011, 10:45 AM | #39 |
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Thanks Ted. Well, I guess I'm selling my high flow cats and getting mid pipes, lol.
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11-21-2011, 11:25 AM | #40 | |
Camaro SS Lover
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Quote:
Last edited by calbert1999; 11-21-2011 at 11:36 AM. |
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11-21-2011, 11:37 AM | #41 |
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If they existed
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11-21-2011, 11:43 AM | #42 |
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Edit
Last edited by TCAT; 11-21-2011 at 12:12 PM. |
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