Stock cats with supercharger ??

sal11585 · 03-25-2019, 02:02 PM

If I stay in the mid 500s will my stock cats hold up? I really don't want headers or a cat delete

Chris V · 03-25-2019, 03:05 PM

Survey says:

That was on the Whipple canned tune on an otherwise stock SS 1LE.

sal11585 · 03-25-2019, 03:39 PM

Dam lol, How many miles did that take to happen? Maybe ill just do cat deletes to save some money and keep it quieter. But I am afraid the stock npp will sound like crap after

DenverTaco07 · 03-25-2019, 03:42 PM

Chris, how long were you running that canned tune before the cats went? Did Whipple have anything to say?

Sal, I've been running a S/C for a few thousand miles, custom tune, no codes so far - which i assume means they are still good.

does the tune have anything at all to do with it or is it simply the amount of air and heat generated from the S/C?

blk 2013 · 03-25-2019, 09:42 PM

Quote:

Originally Posted by sal11585

If I stay in the mid 500s will my stock cats hold up? I really don't want headers or a cat delete

edelbrocks supercharger does 580 to tires with stock cats and air cleaner

sal11585 · 03-26-2019, 12:25 AM

Yeah, all the kits say they work with stock cats and headers just fine. He made it seem like I should just do it now to avoid a headache later on. I didn't get the vibe that he was just trying to upsell me or anything either. He didn't push it but he just said he thinks it could go bad later on. I hope i will be fine with the stock cat

SJFGTO · 03-26-2019, 07:17 AM

Quote:

Originally Posted by sal11585

If I stay in the mid 500s will my stock cats hold up? I really don't want headers or a cat delete

You have too much invested. Do not skimp on something as critical as cats. Either go no cats or, for a mild build up, use GESI green cats available from Kooks. The heat generated by a supercharged engine can lead to cat melt down, may never happen, but the risk is real. Invest the money to remove cats and retune or use GESI style cats which are designed for supercharger use.

sal11585 · 03-26-2019, 08:38 AM

I defiantly like to do things the right away the first time around. I agree with what you are saying for sure. But I am def not trying to skimp on the headers or cat-delete pipes. I just really wanted to keep the stock setup cause I am happy with the sound and like being able to make it quiet when I want. But maybe I will order some Gesi cats, it will def be better to do it now on the first tune. Or maybe ill just put the extra money and get the ARH headers with cats from JTM. I was really trying to keep this not over the $10k mark. Headers will def push it to 12k which is not an issue but makes me start feeling like I should have just got a Zl1 lol. Also then i need better wires to handle the heat if i do the headers right? The extra heat was another reason I didn't want the headers. You know how the starters on these cars start acting up with heat , i don't want to have issues starting the car from it

MR 45TH · 03-26-2019, 06:13 PM

Still running stock cats.

SJFGTO · 03-26-2019, 06:17 PM

You do not need new wires if you add LTs. Just get some plug sleeves for a little extra protection. ARH headers fit fine, no worries about harming the starter. You could have the LTs jet hot / ceramic coated. Cuts down underhood heat significantly.

Chris V · 03-26-2019, 09:12 PM

The cats melted in about 5,000 miles, which included two track days and 50 or so autocross runs. Trips from the NYC area to NJMP, VIR, and Indiana.

The Whipple tune is garbage. They turned off the cat overtemp warning, so there wasn’t even a warning. I didn’t call Whipple because the fine print of their “warranty” is that it has to be installed by an ASE certified mechanic, and I did it myself.

Driveability on the canned tune needs help too, as the throttle pedal vs throttle body map seems designed to give you big tip-in for an extreme sensation of power. It feels cool, but it makes performance driving harder.

I just got the car back from Jannetty and haven’t had it on track yet, but throttle feels a lot better. I have both catless and green cat setups now.

Learning from my experience, I’d use the Whipple tune to get it to a tuner, and get cat deletes for track work.

avalonandl · 03-26-2019, 09:41 PM

ZL1's run stock cats and manifolds......

blk 2013 · 03-26-2019, 09:54 PM

Quote:

Originally Posted by avalonandl

ZL1's run stock cats and manifolds......

Chris V · 03-26-2019, 10:11 PM

I know of at least one ZL1 owner who melted his cats. All stock.

03-25-2019, 02:02 PM	#1
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Stock cats with supercharger ?? If I stay in the mid 500s will my stock cats hold up? I really don't want headers or a cat delete __________________ ACS front spoiler, rear spoiler, side skirts and rock guards (gloss black). Real carbon fiber dash insert, real carbon fiber gear bezel, GM dark tail lights, Gm black badges(Emblems and ss) Powder-coated gloss black factory 5 spoke split wheels Roto fab Biggulp CAI Full paint correction with cquartz finest ceramic coating Whipple 2.9 ARH Long tube headers with High flow cats 1le sway bars F&R BMR Upper and lower trailing arms Hurst short throw shifter

03-25-2019, 03:05 PM	#2
Chris V Drives: 2017 1SS 1LE Join Date: Aug 2017 Location: New Jersey Posts: 391	Survey says: That was on the Whipple canned tune on an otherwise stock SS 1LE. __________________ www.facebook.com/1lap1le 2017 1SS 1LE - 663 whp/623 wtq Rotofab/Whipple/Kooks 2"/LT5 TB/LT4 Fueling/E85/MCS Coilovers/Ground Control/GOODAero/Apex Wheels/Race Louvers

03-25-2019, 03:39 PM	#3
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Dam lol, How many miles did that take to happen? Maybe ill just do cat deletes to save some money and keep it quieter. But I am afraid the stock npp will sound like crap after __________________ ACS front spoiler, rear spoiler, side skirts and rock guards (gloss black). Real carbon fiber dash insert, real carbon fiber gear bezel, GM dark tail lights, Gm black badges(Emblems and ss) Powder-coated gloss black factory 5 spoke split wheels Roto fab Biggulp CAI Full paint correction with cquartz finest ceramic coating Whipple 2.9 ARH Long tube headers with High flow cats 1le sway bars F&R BMR Upper and lower trailing arms Hurst short throw shifter

03-25-2019, 03:42 PM	#4
DenverTaco07 Drives: 2017 SS 1LE, 2017 Volt, 2013 Pilot Join Date: May 2014 Location: Colorado Posts: 4,274	Chris, how long were you running that canned tune before the cats went? Did Whipple have anything to say? Sal, I've been running a S/C for a few thousand miles, custom tune, no codes so far - which i assume means they are still good. does the tune have anything at all to do with it or is it simply the amount of air and heat generated from the S/C? __________________ 2017 SS 1LE \| HBM \| Vortech V3-Si supercharger (620RWHP and 575ft lbs) \| PDR \| Black Bowties \| Illuminated Front Black Bowtie \| Illuminated Door Sills \| Smoked Tails \| vented seats mod Last edited by DenverTaco07; 03-25-2019 at 03:54 PM.

03-26-2019, 12:25 AM	#6
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Yeah, all the kits say they work with stock cats and headers just fine. He made it seem like I should just do it now to avoid a headache later on. I didn't get the vibe that he was just trying to upsell me or anything either. He didn't push it but he just said he thinks it could go bad later on. I hope i will be fine with the stock cat __________________ ACS front spoiler, rear spoiler, side skirts and rock guards (gloss black). Real carbon fiber dash insert, real carbon fiber gear bezel, GM dark tail lights, Gm black badges(Emblems and ss) Powder-coated gloss black factory 5 spoke split wheels Roto fab Biggulp CAI Full paint correction with cquartz finest ceramic coating Whipple 2.9 ARH Long tube headers with High flow cats 1le sway bars F&R BMR Upper and lower trailing arms Hurst short throw shifter

03-26-2019, 08:38 AM	#8
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	I defiantly like to do things the right away the first time around. I agree with what you are saying for sure. But I am def not trying to skimp on the headers or cat-delete pipes. I just really wanted to keep the stock setup cause I am happy with the sound and like being able to make it quiet when I want. But maybe I will order some Gesi cats, it will def be better to do it now on the first tune. Or maybe ill just put the extra money and get the ARH headers with cats from JTM. I was really trying to keep this not over the $10k mark. Headers will def push it to 12k which is not an issue but makes me start feeling like I should have just got a Zl1 lol. Also then i need better wires to handle the heat if i do the headers right? The extra heat was another reason I didn't want the headers. You know how the starters on these cars start acting up with heat , i don't want to have issues starting the car from it __________________ ACS front spoiler, rear spoiler, side skirts and rock guards (gloss black). Real carbon fiber dash insert, real carbon fiber gear bezel, GM dark tail lights, Gm black badges(Emblems and ss) Powder-coated gloss black factory 5 spoke split wheels Roto fab Biggulp CAI Full paint correction with cquartz finest ceramic coating Whipple 2.9 ARH Long tube headers with High flow cats 1le sway bars F&R BMR Upper and lower trailing arms Hurst short throw shifter

03-26-2019, 06:13 PM	#9
MR 45TH Drives: 2018 ZL1 Join Date: Oct 2011 Location: Huntingtown, MD Posts: 1,138	Still running stock cats. __________________ 2018 ZL1…Many mods to come

03-26-2019, 06:17 PM	#10
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	You do not need new wires if you add LTs. Just get some plug sleeves for a little extra protection. ARH headers fit fine, no worries about harming the starter. You could have the LTs jet hot / ceramic coated. Cuts down underhood heat significantly. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

03-26-2019, 09:12 PM	#11
Chris V Drives: 2017 1SS 1LE Join Date: Aug 2017 Location: New Jersey Posts: 391	The cats melted in about 5,000 miles, which included two track days and 50 or so autocross runs. Trips from the NYC area to NJMP, VIR, and Indiana. The Whipple tune is garbage. They turned off the cat overtemp warning, so there wasn’t even a warning. I didn’t call Whipple because the fine print of their “warranty” is that it has to be installed by an ASE certified mechanic, and I did it myself. Driveability on the canned tune needs help too, as the throttle pedal vs throttle body map seems designed to give you big tip-in for an extreme sensation of power. It feels cool, but it makes performance driving harder. I just got the car back from Jannetty and haven’t had it on track yet, but throttle feels a lot better. I have both catless and green cat setups now. Learning from my experience, I’d use the Whipple tune to get it to a tuner, and get cat deletes for track work. __________________ www.facebook.com/1lap1le 2017 1SS 1LE - 663 whp/623 wtq Rotofab/Whipple/Kooks 2"/LT5 TB/LT4 Fueling/E85/MCS Coilovers/Ground Control/GOODAero/Apex Wheels/Race Louvers Last edited by Chris V; 03-27-2019 at 07:42 AM.

03-26-2019, 09:41 PM	#12
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	ZL1's run stock cats and manifolds...... __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

03-26-2019, 10:11 PM	#14
Chris V Drives: 2017 1SS 1LE Join Date: Aug 2017 Location: New Jersey Posts: 391	I know of at least one ZL1 owner who melted his cats. All stock. __________________ www.facebook.com/1lap1le 2017 1SS 1LE - 663 whp/623 wtq Rotofab/Whipple/Kooks 2"/LT5 TB/LT4 Fueling/E85/MCS Coilovers/Ground Control/GOODAero/Apex Wheels/Race Louvers

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