Check your cats... - Page 38 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TinyToasta · 01-06-2013, 04:49 AM

HJS Cats - extremely expensive - but those should do

http://www.hjsna.com/products/HJS-Hi...9095-0050.html

I've found cheaper cats here in Germany around 250$ each, 100cpi metal cats similar to the HJS. There usually used for the big Porsche and Audi Biturbos....

I'll give it a try...

blackswan · 01-06-2013, 06:00 AM

How do the ZL1s cats hold up if cats with blower is bad?

grocerygetter · 01-06-2013, 07:20 AM

We've discussed...stock cats may or may not flow less than certain aftermarkets....but there is a reason they cost so much.

PIC · 01-06-2013, 10:22 AM

Quote:

Originally Posted by blackswan

How do the ZL1s cats hold up if cats with blower is bad?

Stock cats are made of ceramic which is less likely to "melt down", although it is still possible. If you were to put a full exhaust system onto a zl1 with high flow cats, they would be able to last. Its when you get up into the higher boost and horsepower ranges where the cats start to fail.

TCAT · 01-06-2013, 12:08 PM

Quote:

Originally Posted by grocerygetter

We've discussed...stock cats may or may not flow less than certain aftermarkets....but there is a reason they cost so much.

Exactly, and that's why I am forced to use stock CATS currently. They are definitely made of higher quality components.

cornfield camaro · 01-06-2013, 01:09 PM

Just a FYI, I bought a cheapie bore scope($100) from Oreilly auto parts to check my cats on my supercharged SS. I took all the o2 sensors out and view the inside easily. Worked good. I don't have to diassemble the exhaust to check them.

TinyToasta · 01-06-2013, 01:33 PM

Is there a reason that nobody (?) here uses metal cats rather than the stock/aftermarket ceramic versions? Those 100cpi converters are "proven" to hold up to 400+hp each. Even the 200cpi metal versions seem to be superior to aftermarket cats...

lewylew · 01-06-2013, 03:23 PM

Quote:

Originally Posted by TinyToasta

Is there a reason that nobody (?) here uses metal cats rather than the stock/aftermarket ceramic versions? Those 100cpi converters are "proven" to hold up to 400+hp each. Even the 200cpi metal versions seem to be superior to aftermarket cats...

Have you used them yet? I tried the variant ones. They are rated 500-850. They didn't last 2500 miles and cost me over $800 to figure that out.

TCAT · 01-06-2013, 03:26 PM

Quote:

Originally Posted by lewylew

Have you used them yet? I tried the variant ones. They are rated 500-850. They didn't last 2500 miles and cost me over $800 to figure that out.

That still pisses me off for you. Did they have any warranty at all, and what did the company say (if you contacted them)?

TinyToasta · 01-06-2013, 03:46 PM

Quote:

Originally Posted by lewylew

Have you used them yet? I tried the variant ones. They are rated 500-850. They didn't last 2500 miles and cost me over $800 to figure that out.

I've seen your post - and I hate the idea that even those have failed

Which ones did you get - these?
http://vibrantperformance.com/catalo...1022_1063_1111

I'm still going for 100 cell metal cores, not the vibrant though!

My kooks we're holding up just fine and I'll have'em checked soon, but still I think these new cats can't be worse.. The do work for other big cube / boosted cars here in Germany running far more horses than I do...

Fingers crossed they won't let me down...

lewylew · 01-06-2013, 04:39 PM

The ones I used i think were the 7830 high flow. There is a link in this thread somewhere.

TinyToasta · 01-06-2013, 04:51 PM

The 7830 are 300cpi cats right?

At least it is stated here:
http://thmotorsports.com/vibrant/vib.../i-530501.aspx

Still sucks though that they failed...

PIC · 01-06-2013, 07:44 PM

Quote:

Originally Posted by TinyToasta

The 7830 are 300cpi cats right?

At least it is stated here:
http://thmotorsports.com/vibrant/vib.../i-530501.aspx

Still sucks though that they failed...

if those are in fact 300 cpi, that would more than likely be why they failed. 300 is really not meant for boost despite what most companies claim, theres just not enough flow. the ideal situation would be to have a 100 cpi cat made of thicker material, thicker brazing alloy and a heavier precious metal coat on them. I wish I could go into detail on ours but unfortunately I cant.

PIC · 01-06-2013, 07:45 PM

Quote:

Originally Posted by TinyToasta

I've seen your post - and I hate the idea that even those have failed

Which ones did you get - these?
http://vibrantperformance.com/catalo...1022_1063_1111

I'm still going for 100 cell metal cores, not the vibrant though!

My kooks we're holding up just fine and I'll have'em checked soon, but still I think these new cats can't be worse.. The do work for other big cube / boosted cars here in Germany running far more horses than I do...

Fingers crossed they won't let me down...

pretty much all aftermarket cores are made of stainless steel foil unless they are designed to be factory replacements.

01-06-2013, 04:49 AM	#519
TinyToasta Drives: way too fast.... Join Date: May 2010 Location: Germany Posts: 297 View My Garage	HJS Cats - extremely expensive - but those should do http://www.hjsna.com/products/HJS-Hi...9095-0050.html I've found cheaper cats here in Germany around 250$ each, 100cpi metal cats similar to the HJS. There usually used for the big Porsche and Audi Biturbos.... I'll give it a try... __________________ custom build forged LSA, 379ci, TVS2300@15psi, 696rwhp/688ft-lbs, built by DH Individual, Customkingz, tuned by Jannetty Racing JRE rough idle cam, JRE ported lower intake manifold, OD cog drive, 6% OD crank pulley, ported ls3 heads, NW102mm TB, 1/2'' RDS spacer, IW 8-rib drive Pfadt Cradle Bushings, Arms & Rods, Pedders Supercar w/FE4 conversion, ZL1 sways, HE Twin Carbon Street Slayer, ZL1 Rear End (3.73) CTS-V Brake upgrade, Street: 22'' Vossen CV1, Strip: 18'' Forgestar F14 on MT Street Radials

01-06-2013, 07:20 AM	#521
grocerygetter instigator Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010 Location: 72034 Posts: 3,979 View My Garage	We've discussed...stock cats may or may not flow less than certain aftermarkets....but there is a reason they cost so much. __________________ -John S.

01-06-2013, 01:33 PM	#525
TinyToasta Drives: way too fast.... Join Date: May 2010 Location: Germany Posts: 297 View My Garage	Is there a reason that nobody (?) here uses metal cats rather than the stock/aftermarket ceramic versions? Those 100cpi converters are "proven" to hold up to 400+hp each. Even the 200cpi metal versions seem to be superior to aftermarket cats... __________________ custom build forged LSA, 379ci, TVS2300@15psi, 696rwhp/688ft-lbs, built by DH Individual, Customkingz, tuned by Jannetty Racing JRE rough idle cam, JRE ported lower intake manifold, OD cog drive, 6% OD crank pulley, ported ls3 heads, NW102mm TB, 1/2'' RDS spacer, IW 8-rib drive Pfadt Cradle Bushings, Arms & Rods, Pedders Supercar w/FE4 conversion, ZL1 sways, HE Twin Carbon Street Slayer, ZL1 Rear End (3.73) CTS-V Brake upgrade, Street: 22'' Vossen CV1, Strip: 18'' Forgestar F14 on MT Street Radials

01-06-2013, 04:39 PM	#529
lewylew Drives: 2010 ZL550& 2021 C8 Z51 Join Date: Feb 2010 Location: Near Philadelphia Posts: 1,577 View My Garage	The ones I used i think were the 7830 high flow. There is a link in this thread somewhere. __________________

01-06-2013, 04:51 PM	#530
TinyToasta Drives: way too fast.... Join Date: May 2010 Location: Germany Posts: 297 View My Garage	The 7830 are 300cpi cats right? At least it is stated here: http://thmotorsports.com/vibrant/vib.../i-530501.aspx Still sucks though that they failed... __________________ custom build forged LSA, 379ci, TVS2300@15psi, 696rwhp/688ft-lbs, built by DH Individual, Customkingz, tuned by Jannetty Racing JRE rough idle cam, JRE ported lower intake manifold, OD cog drive, 6% OD crank pulley, ported ls3 heads, NW102mm TB, 1/2'' RDS spacer, IW 8-rib drive Pfadt Cradle Bushings, Arms & Rods, Pedders Supercar w/FE4 conversion, ZL1 sways, HE Twin Carbon Street Slayer, ZL1 Rear End (3.73) CTS-V Brake upgrade, Street: 22'' Vossen CV1, Strip: 18'' Forgestar F14 on MT Street Radials

01-06-2013, 06:00 AM	#520
blackswan Drives: 2012 2LT/RS Join Date: Oct 2011 Location: Northeast Posts: 1,443	How do the ZL1s cats hold up if cats with blower is bad?

01-06-2013, 01:09 PM	#524
cornfield camaro Drives: 2011 l99 Join Date: Aug 2012 Location: Ames, Iowa Posts: 305	Just a FYI, I bought a cheapie bore scope($100) from Oreilly auto parts to check my cats on my supercharged SS. I took all the o2 sensors out and view the inside easily. Worked good. I don't have to diassemble the exhaust to check them.

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