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05-15-2020
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#1 |
 Join Date: Mar 2013
Location: Roswell, GA
Posts: 234
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Catalytic Converter Cylinder Damage
I ran across a thread a while back that discussed this. The issue was cylinder damage due to catalytic converter dust being making its way back up into the cylinders and causing premature damage to cylinder walls and rings. The solution tossed about was to remove the headers and core out the converter material or install headers and aftermarket cats. This is not a simple task to say the least. I wanted to float this out to the group to get a better feel regarding this issue. I have a 92 with 22,000 miles on it and am wondering if I really need to add this to my list of future must do projects. Of all the little hidden gremlins that we must worry about being ZR1 owners, this one really snuck up on me and left me feeling like REALLY?
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1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp |
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05-15-2020
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#2 |
 
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,396
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Re: Catalytic Converter Cylinder Damage
I believe the risk is remote but still a possibility. Not something I would lose sleep over.
Catalytic dust reversion is most likely to occur from high rpm de-celleration driving. In 1993, the catalytic converter placement was revised for 2 reasons I can think of, (1) simplification of exhaust manifold fabrication and (2) moving the converters further back in the exhaust system.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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05-15-2020
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#3 |
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Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,168
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Re: Catalytic Converter Cylinder Damage
Just bring it down to me I'll drive it until the cats are worn out...LOL
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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05-15-2020
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#4 | |
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Join Date: Mar 2013
Location: Roswell, GA
Posts: 234
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Re: Catalytic Converter Cylinder Damage
Quote:
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1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp |
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