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10-03-2009
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#11 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: What causes catalytic converter damage?
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 10-03-2009 at 03:33 PM. |
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10-03-2009
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#12 |
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Join Date: Dec 2008
Location: Santa Maria, CA
Posts: 33
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Re: What causes catalytic converter damage?
I was looking through some old posts and saw TomC (tccrab) had done his homework. I sent him a private message and this is what he sent back. Sounds like I might as well give it a shot;
------------------------------------------------- Nate: Howdy! It's a legal loophole that allows us to have non-CARB approved aftermarket exhaust headers on '90-92 ZR1's only. Here's how it goes: First, take the car down to a SMOG shop and have them fail it for the bad Cat. Make sure they document that the Cat is bad and needs replaced. Get the smog shop to set help you set an appointment for a referee inspection. Then go down to your local Chevy shop and have them search for a replacement exhaust header/cat. They will tell you that there are none, haven't been any for years. Have the parts manager write you a note stating this. Order up a set of headers, but be sure to have the air injection hoses and pipes installed on them. Buy a pair of Cats that are CARB approved (there are quite a selection) Take the headers and the cats down to the referee, explain to them that the old cat has failed and there are NO OEM replacements available anywhere. Remind the referee that you know that you can't legally buy a used cat here in CA so that means you have to go with aftermarket equipment. No headers for a ZR1 were ever CARB approved, so they will have to accept whatever headers you show them as long as they have all the correct SMOG hoses. The referee will write you an exemption. You can of course buy a set of good used stock manifolds and cats from a fellow forum member and install them yourself. It's not exactly legal, but nobody but you would ever know that you illegally bought a used catalytic converter and installed it on your car. This is actually the cheapest way to go, there's a lot of guys who have headers on their cars in places where the SMOG nazi's haven't taken over. I've seen them sell for as little as a couple of hundred dollars for the pair. Good luck!! TomC "Crabs" __________________ TomC '90ZR1 #792 Honorary Pirate  I can break every speed law in the country going into 2nd gear. There's 4 gears after that. |
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