Remove Cats To Save Your Engine - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BigRedViking · 01-29-2015, 12:50 AM

One of the guys that I work with said that the catalytic converters regularly fail on the high feature v6. On the LFX material can enter the cylinders, and score the cylinder walls.

Has anyone else heard of this? Sounds like a good excuse to fix something that might not break

shibbs · 01-29-2015, 12:59 AM

Uh, the cats are in the exhaust... and there's no way you can get them back into the intake....

christianmotox · 01-29-2015, 01:53 AM

Unless you're engine is sucking air from the exhaust, I don't see this happening....

ToolFan66 · 01-29-2015, 04:32 AM

I would be more worried about the muffler bearings rolling up into the cylinders..

Sigelitest · 01-29-2015, 07:28 AM

It sounds better if u say u are worried the cats may break up inside and plug causing too much backpressure. With the engine not having anywhere to exhaust it could explode causing small children standing by to be injured

Good reason to tell the wife they need to be removed.

102SS · 01-29-2015, 07:40 AM

Quote:

Originally Posted by BigRedViking

One of the guys that I work with said that the catalytic converters regularly fail on the high feature v6. On the LFX material can enter the cylinders, and score the cylinder walls.

Has anyone else heard of this? Sounds like a good excuse to fix something that might not break

Unless your running a turbo downstream of the cats the probability is zero.

Mean Green Z28 · 01-29-2015, 08:30 AM

Quote:

Originally Posted by ToolFan66

I would be more worried about the muffler bearings rolling up into the cylinders..

... and blinker fluid leaking into the headlights

pickwithaustin · 01-29-2015, 08:32 AM

There should be a test one takes before they buy anything more "car" than a Prius.

JantzenOKC · 01-29-2015, 08:36 AM

Maybe he runs his exhaust strait into his air intake... Forced Induction!

MRREVINTO7 · 01-29-2015, 08:53 AM

tell that dude while he os at it go get you a bucket of steam!! and a thermostat for a vw bug!!

dmginc · 01-29-2015, 08:57 AM

Angrybird 12 · 01-29-2015, 09:00 AM

Thanks for the laugh this morning.....

BigRedViking · 01-29-2015, 09:08 AM

Very funny, maybe I'll just go check my dust cups, I think they are leaking... When he told me about the converter failures, it didn't seem probable. But what do I know, I'm just a Refinishing Technician. I also have rebuilt a relatively modern fuel injected sbc 5.7L engine, and driven it for more than 1000 miles. I'll ask if there's an actual tsb.

Angrybird 12 · 01-29-2015, 09:50 AM

Quote:

Originally Posted by BigRedViking

Very funny, maybe I'll just go check my dust cups, I think they are leaking... When he told me about the converter failures, it didn't seem probable. But what do I know, I'm just a Refinishing Technician. I also have rebuilt a relatively modern fuel injected sbc 5.7L engine, and driven it for more than 1000 miles. I'll ask if there's an actual tsb.

You would have to have a failure of the exhaust valves to suck anything backwards into the engine, remember the exhaust is pressurized by the engine, the cats are downstream from the engine. If the cats were to come apart, the pieces would be forced down the exhaust not back into the engine.

01-29-2015, 12:50 AM	#1
BigRedViking Drives: 1987 IROC-Z 5.7L 2016 1SS M6 NGM Join Date: Jan 2015 Location: Renton, Washington Posts: 280 View My Garage	Remove Cats To Save Your Engine One of the guys that I work with said that the catalytic converters regularly fail on the high feature v6. On the LFX material can enter the cylinders, and score the cylinder walls. Has anyone else heard of this? Sounds like a good excuse to fix something that might not break

01-29-2015, 01:53 AM	#3
christianmotox Drives: ( . )( . ) Join Date: Feb 2010 Location: San Diego, CA Posts: 2,827	Unless you're engine is sucking air from the exhaust, I don't see this happening.... __________________

01-29-2015, 04:32 AM	#4
ToolFan66 Drives: 2011 2SS 6.2L W/RS package Join Date: Jan 2011 Location: Colorado Posts: 3,008	I would be more worried about the muffler bearings rolling up into the cylinders.. __________________ KooKs LT Headers, Borla S-Type cat back, RotoFab CAI, Bo White PTB, RMCR tune...

01-29-2015, 07:28 AM	#5
Sigelitest Drives: White 2016 Z06 Join Date: Aug 2014 Location: Alabama Posts: 416	It sounds better if u say u are worried the cats may break up inside and plug causing too much backpressure. With the engine not having anywhere to exhaust it could explode causing small children standing by to be injured Good reason to tell the wife they need to be removed. __________________ Hmmm now where did I put that screw

01-29-2015, 08:32 AM	#8
pickwithaustin Drives: 2011 Camaro 2SS/RS Convertible and: Join Date: May 2014 Location: Central Texas Posts: 1,863	There should be a test one takes before they buy anything more "car" than a Prius. __________________ --------------------------- Currently in my Garage: 2011 Camaro 2SS/RS Convertible \| 1980 Corvette Stingray \| 1981 Firebird \| 1968 El Camino \| 2007 Crown Vic Police Interceptor \| 2001 Silverado \| 2001 Blazer \| 1965 Chevy C-10 \| 2007 Harley Softail Custom \| 2013 MX-5 in Copper Red Mica \| 2000 Corvette Convertible \| 2010 Corvette Grand Sport \| 2006 Audi A3 Turbo \| 2008 BMW 328i

01-29-2015, 08:36 AM	#9
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Maybe he runs his exhaust strait into his air intake... Forced Induction! __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

01-29-2015, 08:53 AM	#10
MRREVINTO7 Drives: 14 1Le --14 chevy ss sedan 07shelby Join Date: Sep 2014 Location: ny Posts: 357	tell that dude while he os at it go get you a bucket of steam!! and a thermostat for a vw bug!!

01-29-2015, 08:57 AM	#11
dmginc Drives: In Circles Join Date: Mar 2011 Location: South Carolina Posts: 3,433 View My Garage	Attached Images __________________ CAI Cold Air Intake, BMR Strut Tower Brace, BMR 1.2" Lowering Springs Gen5DIY Fog Lights, Big Worm Third Brake Light/Side Marker Tint (Charcoal) GTS Tail Light Covers, Purple Under Hood Lighting Magnaflow Resonated X-Pipe w/ Muffler Delete Black Plasti Dipped Wheels, Z/28 Spoiler

01-29-2015, 09:00 AM	#12
Angrybird 12 7 year Cancer Survivor! Drives: 17 Cruze RS, 07 G6 GT, 99 Astro Join Date: Dec 2007 Location: East Tennessee Posts: 21,547	Thanks for the laugh this morning..... __________________ Cancer's a bitch! Enjoy life while you can! LIVE, LOVE, DRIVE... The Bird is the word!

01-29-2015, 09:08 AM	#13
BigRedViking Drives: 1987 IROC-Z 5.7L 2016 1SS M6 NGM Join Date: Jan 2015 Location: Renton, Washington Posts: 280 View My Garage	Very funny, maybe I'll just go check my dust cups, I think they are leaking... When he told me about the converter failures, it didn't seem probable. But what do I know, I'm just a Refinishing Technician. I also have rebuilt a relatively modern fuel injected sbc 5.7L engine, and driven it for more than 1000 miles. I'll ask if there's an actual tsb.