Catalytic converter deletes
Thread Starter
Instructor
Joined: Feb 2009
Posts: 161
Likes: 0
From: Duncanvill TX
Catalytic converter deletes
My car has been smelling kind of strange for a while now, i took it to a mechanic that specializes on corvettes, he says is fine but don't know where the smell is coming from.
I have a feeling I may need new catalytic converters, I took it to the muffler shop they said the only way to tell if is going out is a bad smell and lack of power,
Im thinking of installing the Cat conv deletes, any idea of the benefits, pros and cons of going with deletes?
am i still going to pass the Texas State inspections and will any lights come out? is there any plugs i have to delete? anyone know?
I have a feeling I may need new catalytic converters, I took it to the muffler shop they said the only way to tell if is going out is a bad smell and lack of power,
Im thinking of installing the Cat conv deletes, any idea of the benefits, pros and cons of going with deletes?
am i still going to pass the Texas State inspections and will any lights come out? is there any plugs i have to delete? anyone know?
Burning Brakes
Joined: Dec 2009
Posts: 963
Likes: 23
Unless you are building a 9 second car and you are trying to squeeze and extra 3 to 5 hp out you should leave them on. Your stock cats actually flow very well and removing them will only cause you to keep setting codes on the DIC, have exhaust fumes actually come into the vehicle, and create loud occasional backfires. It's really a waste of time unless like I said, you are building a race car. And as far as passing inspection it depends on who is inspecting your vehicle and what kind of mood they are in. It's hit or miss on that.
Drifting
Joined: Feb 2007
Posts: 1,993
Likes: 7
From: LaPine Oregon
Can you smell that smell.......?
Generally if you have an exhaust smell thats odd it will be from old fuel or fuel additives. If the Cat(s) are functioning , the exhaust temperture going into the Cat is lower than the temperture coming out. That's what a catalytic conveter does , burn off unburned fuel. Use a infrared temp. gun. This is standard practice.
Obvuiosly if you have performance problems (terrible acceleration/ no top end speed) or show a trouble code the Cat is a likely candidate. You have the older single 'brick' Cat design. I'm not sure if Texas required the 'pup' converters ( as California did ) to meet the LEV emissions.
If you have to meet emissions test standards, why would you want to remove the Cat(s)? There are low backpressure performance Cat conveters ( the 2002- C5 dual brick converters have slightly lower backpressure then OEM)
Obvuiosly if you have performance problems (terrible acceleration/ no top end speed) or show a trouble code the Cat is a likely candidate. You have the older single 'brick' Cat design. I'm not sure if Texas required the 'pup' converters ( as California did ) to meet the LEV emissions.
If you have to meet emissions test standards, why would you want to remove the Cat(s)? There are low backpressure performance Cat conveters ( the 2002- C5 dual brick converters have slightly lower backpressure then OEM)
Last edited by dieseldave56; Apr 8, 2010 at 06:05 AM.
Thread Starter
Instructor
Joined: Feb 2009
Posts: 161
Likes: 0
From: Duncanvill TX
Unless you are building a 9 second car and you are trying to squeeze and extra 3 to 5 hp out you should leave them on. Your stock cats actually flow very well and removing them will only cause you to keep setting codes on the DIC, have exhaust fumes actually come into the vehicle, and create loud occasional backfires. It's really a waste of time unless like I said, you are building a race car. And as far as passing inspection it depends on who is inspecting your vehicle and what kind of mood they are in. It's hit or miss on that.
Thread Starter
Instructor
Joined: Feb 2009
Posts: 161
Likes: 0
From: Duncanvill TX
Generally if you have an exhaust smell thats odd it will be from old fuel or fuel additives. If the Cat(s) are functioning , the exhaust temperture going into the Cat is lower than the temperture coming out. That's what a catalytic conveter does , burn off unburned fuel. Use a infrared temp. gun. This is standard practice.
Obvuiosly if you have performance problems (terrible acceleration/ no top end speed) or show a trouble code the Cat is a likely candidate. You have the older single 'brick' Cat design. I'm not sure if Texas required the 'pup' converters ( as California did ) to meet the LEV emissions.
If you have to meet emissions test standards, why would you want to remove the Cat(s)? There are low backpressure performance Cat conveters ( the 2002- C5 dual brick converters have slightly lower backpressure then OEM)
Obvuiosly if you have performance problems (terrible acceleration/ no top end speed) or show a trouble code the Cat is a likely candidate. You have the older single 'brick' Cat design. I'm not sure if Texas required the 'pup' converters ( as California did ) to meet the LEV emissions.
If you have to meet emissions test standards, why would you want to remove the Cat(s)? There are low backpressure performance Cat conveters ( the 2002- C5 dual brick converters have slightly lower backpressure then OEM)
