Stock cats with supercharger ?? - Page 2

laynlo15 · 03-27-2019, 07:25 AM

My cats looked great after 12,500 miles and 180 passes down the track. Its all about tuning. The canned tunes are usually set up rich for safety but too much fuel is a cat killer.

Chris V · 03-27-2019, 07:45 AM

Quote:

Originally Posted by laynlo15

My cats looked great after 12,500 miles and 180 passes down the track. Its all about tuning. The canned tunes are usually set up rich for safety but too much fuel is a cat killer.

For sure.

Drag racing and road course work are also going to be a big variable. 180 passes down the track is a lot of drivetrain shock, but it's still only 30 minutes of WOT time, with ample cool-down between runs.

At VIR and NJMP, I was north of 150 at least once per minute for 20 minutes at a time.

KingLT1 · 03-27-2019, 09:27 AM

Tuning plays a big part and usage. Turning off cat/over temp on a car with cats is a big no and many tuners do this. personally, I would source a set of bolt-in cat delete pipes for track days.

laynlo15 · 03-27-2019, 09:35 AM

Probably a good idea on the delete.

sal11585 · 04-23-2019, 07:21 PM

Going with the delete , Jtm is going to fab some up for me. I am going to tell them to leave the secondary and just delete the primary. Still waiting for them to get the supercharger , been almost a month :(

JCunningham · 04-23-2019, 09:46 PM

if your putting a SC on a SS you could have bought a ZL1. Think about it. your going to be what a few grand short and not have the suspension, brakes, tires, wheels, or ediff. well unless you bought a 1LE. a 2SS is a ZL1 without the SC and forged bottom end. I just did everything in my sig and could have bought a ZL1 for the same money and I still have nothing close to a ZL1. Took it in for a tune today and guy offered to buy it. If he does buy it im buying a ZL1.

Infamus · 04-24-2019, 05:45 AM

the only thing I regret from the Efroce stage 2 install on my vette was removing the cats... The smell sometimes is horrible... my tuner says it's the nature of the beast. He also sold me on the bit about heat destroying the cats. My buddy has the same set up as I do minus the cats and he has had no issues and no stinking smell. I say keep the cats unless you going for some 700 -1K HP build.

oneredry · 04-24-2019, 01:32 PM

forgive me, but are we talking primary or secondary cats. I'm assuming secondary's.

KingLT1 · 04-24-2019, 02:11 PM

Primary, the secondaries are not that restrictive and they are not made like a regular cat.

sal11585 · 04-27-2019, 01:57 PM

Just the primary, I am trying to keep the car rasp free and not extremely loud if possible. I drove catless 3" exhaust my whole life lol. Nowadays I don't feel its worth the extra 15whp or so. I don't even want to remove the cat, but I don't want to have issues. Still waiting for them to receive my supercharger, the wait is torcher. Its a month as of today i have been waiting

sal11585 · 09-06-2019, 08:54 AM

Five months later and they are finally supposed to take my car in next week. Hopefully, they don't delay it again. Now I am debating on doing the fuel pump since he said it would be cheaper now since they are installing the blower. Is the fuel pump worth it to do without injectors? I don't plan on raising the boost and would like to keep the car under 600whp to be safe

LT4Greg · 09-06-2019, 09:44 AM

I think I would find another shop to do the work sal! Seems like they are jerking you around too much! ��

Mov Ov3r · 09-06-2019, 10:38 AM

Quote:

Originally Posted by LT4Greg

I think I would find another shop to do the work sal! Seems like they are jerking you around too much! ��

I absolutely agree.. 5/6 month turn around time is not good.

Chris V · 09-06-2019, 11:02 AM

Quote:

Originally Posted by sal11585

Five months later and they are finally supposed to take my car in next week. Hopefully, they don't delay it again. Now I am debating on doing the fuel pump since he said it would be cheaper now since they are installing the blower. Is the fuel pump worth it to do without injectors? I don't plan on raising the boost and would like to keep the car under 600whp to be safe

The fuel pump won't hurt, but you ought to do the injectors while you're in there if you're already adding the LT4 fuel pump.

If you're going to stick to LT1 injectors, sell the LT4 HPFP and recoup some costs.

The LT4 pump, injectors, and voltage booster on my car with E85 was good for 660+ whp in 90 degree weather (I have supporting mods too, but a stock LT1 from valve cover to oil pan).

All JMHO.

03-27-2019, 07:25 AM	#15
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	My cats looked great after 12,500 miles and 180 passes down the track. Its all about tuning. The canned tunes are usually set up rich for safety but too much fuel is a cat killer. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

03-27-2019, 09:27 AM	#17
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,787	Tuning plays a big part and usage. Turning off cat/over temp on a car with cats is a big no and many tuners do this. personally, I would source a set of bolt-in cat delete pipes for track days. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

03-27-2019, 09:35 AM	#18
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Probably a good idea on the delete. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

04-23-2019, 07:21 PM	#19
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Going with the delete , Jtm is going to fab some up for me. I am going to tell them to leave the secondary and just delete the primary. Still waiting for them to get the supercharger , been almost a month :( __________________ 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

04-23-2019, 09:46 PM	#20
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,071	if your putting a SC on a SS you could have bought a ZL1. Think about it. your going to be what a few grand short and not have the suspension, brakes, tires, wheels, or ediff. well unless you bought a 1LE. a 2SS is a ZL1 without the SC and forged bottom end. I just did everything in my sig and could have bought a ZL1 for the same money and I still have nothing close to a ZL1. Took it in for a tune today and guy offered to buy it. If he does buy it im buying a ZL1. __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

04-24-2019, 05:45 AM	#21
Infamus Drives: 2018 Camaro ZL1 Join Date: Feb 2019 Location: FL Posts: 345	the only thing I regret from the Efroce stage 2 install on my vette was removing the cats... The smell sometimes is horrible... my tuner says it's the nature of the beast. He also sold me on the bit about heat destroying the cats. My buddy has the same set up as I do minus the cats and he has had no issues and no stinking smell. I say keep the cats unless you going for some 700 -1K HP build.

04-24-2019, 01:32 PM	#22
oneredry HYPER SS Drives: 2016 Supercharged 2SS Join Date: Feb 2014 Location: Troy OH Posts: 1,252	forgive me, but are we talking primary or secondary cats. I'm assuming secondary's. __________________ Ordered: 1/15/2016 2000 status 02/01/16 3000 status 02/29/16 3400 status 03/07/16 TPW of 03/14/16 4200 status 03/17/16 in transit! Delivered 03/23/16 2SS Hyper Blue \| 6M \| NPP \| Mag ride \| ceramic white Int. \| Black out bow ties \| P3 Gauge\| Front splitter. \| 6 pot upgraded brembo brakes. \| Magnuson Supercharger/95MM pulley \| Rotofab Intake \| ZL1 side skirts \| HRE FF04 wheels - Michelin PSS4 \| ZL1 add ons rock guards and lift points. \| AWE touring - resinated catback with link pipes.

04-24-2019, 02:11 PM	#23
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,787	Primary, the secondaries are not that restrictive and they are not made like a regular cat. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

04-27-2019, 01:57 PM	#24
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Just the primary, I am trying to keep the car rasp free and not extremely loud if possible. I drove catless 3" exhaust my whole life lol. Nowadays I don't feel its worth the extra 15whp or so. I don't even want to remove the cat, but I don't want to have issues. Still waiting for them to receive my supercharger, the wait is torcher. Its a month as of today i have been waiting __________________ 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

09-06-2019, 08:54 AM	#25
sal11585 Drives: 2017 Camaro SS 2ss Nightfall Gray Join Date: Aug 2018 Location: New york Posts: 149	Five months later and they are finally supposed to take my car in next week. Hopefully, they don't delay it again. Now I am debating on doing the fuel pump since he said it would be cheaper now since they are installing the blower. Is the fuel pump worth it to do without injectors? I don't plan on raising the boost and would like to keep the car under 600whp to be safe __________________ 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

09-06-2019, 09:44 AM	#26
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,809	I think I would find another shop to do the work sal! Seems like they are jerking you around too much! �� __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

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