CSP Headers and 1700hp gen2 cats - Page 6

swisstyphoon · 07-01-2021, 05:43 PM

Quote:

Originally Posted by Camaro1973

Nice bud keep me posted. Your pulley combo is similiar to mine too. 90mm upper and 9.06 lower i have (13%). I make about 15lbs boost.

Will do. I'm around 16.6 psi to 17psi peak. My heads are done by LME also.

Camaro1973 · 07-04-2021, 11:41 AM

So I’ve put some hard 60-130 pulls on these new cats in past few days. So far so good. Only time will tell.

Z OH 6 · 07-04-2021, 12:30 PM

Quote:

Originally Posted by Camaro1973

So I’ve put some hard 60-130 pulls on these new cats in past few days. So far so good. Only time will tell.

Camaro1973 · 07-19-2021, 10:31 PM

Still holding up. Usually by now I would see some type of failure with the old cats.

swisstyphoon · 08-15-2021, 08:11 AM

Just checked mine, they are still looking good also.

Z OH 6 · 08-15-2021, 09:12 AM

That's great news guys. Thanks for the update.

KingLT1 · 08-15-2021, 09:50 AM

Glad to hear they are working out!

gtfoxy · 08-15-2021, 11:22 AM

Very promising & Im hopeful you high powered guys have a more long term solution.

Camaro1973 · 08-15-2021, 11:59 AM

Quote:

Originally Posted by gtfoxy

Very promising & Im hopeful you high powered guys have a more long term solution.

Long term solution if these don't hold is ripping the cats out and dealing with it. These LT4's sound like shit with headers and no cats though. On a positive note, the older gen 1's never lasted even 1 month. These so far have looked fine.

FoundNemo · 08-16-2021, 03:59 AM

Quote:

Originally Posted by Camaro1973

Long term solution if these don't hold is ripping the cats out and dealing with it. These LT4's sound like shit with headers and no cats though. On a positive note, the older gen 1's never lasted even 1 month. These so far have looked fine.

Looks great! Very glad we bought these.

*radz28* · 08-16-2021, 08:58 AM

Excellent news!

Cleancoupe · 09-08-2021, 06:57 AM

Are the cats still holding up? Any issues with the CSP headers and clearance?

L78toLT1 · 09-08-2021, 08:02 AM

I think if your making 650-700 max I think the original Gen 1's might be safe BUT and this is a BUT the tune would need to be perfect and boost cant be crazy high or they'll def not last.
[/QUOTE]

I think you hit the nail on the head. I have been running Kooks high flow cats for 15k miles without issue. I haven't dynoed my car, but based on several, virtually identical builds that Ted Jannetty has done, I'm just under 700 whp on 93 and 725ish on e60. I'm really surprised that my cats are still alive. I have done at least a dozen track days on fast tracks.

Camaro1973 · 09-08-2021, 09:51 AM

Quote:

Originally Posted by Cleancoupe

Are the cats still holding up? Any issues with the CSP headers and clearance?

Both cats still good. No issues with headers.

07-04-2021, 11:41 AM	#72
Camaro1973 Drives: 2019 ZL1 Join Date: Mar 2019 Location: NJ Posts: 1,537	So I’ve put some hard 60-130 pulls on these new cats in past few days. So far so good. Only time will tell. Attached Images __________________ 928rwhp - 93 \| 1040rwhp/898rwrq - E65 SAE LME 377 LT4 Short Block \| Magnuson 2650 80mm upper w/13% lower (9.06) \| DSX Lid & Valve Covers \| CSP Custom Cam w/32% fuel lobe \| CID Heads \| NW 103mm TB \| Roto Fab Big Gulp \| CSP 2" Headers w/Green GESI Gen 2 Cats \| Borla 3" Full Cat Back w/ S-Type\| Mighty Mouse Wild Catch Can\| Custom Holley Low side Fuel system\| TooHigh PSI Port Injection w/Holley Controller \| Forced Inductions Interchiller w/2 gallon fender tank \| TK Performance built 10L90

07-19-2021, 10:31 PM	#74
Camaro1973 Drives: 2019 ZL1 Join Date: Mar 2019 Location: NJ Posts: 1,537	Still holding up. Usually by now I would see some type of failure with the old cats. Attached Images __________________ 928rwhp - 93 \| 1040rwhp/898rwrq - E65 SAE LME 377 LT4 Short Block \| Magnuson 2650 80mm upper w/13% lower (9.06) \| DSX Lid & Valve Covers \| CSP Custom Cam w/32% fuel lobe \| CID Heads \| NW 103mm TB \| Roto Fab Big Gulp \| CSP 2" Headers w/Green GESI Gen 2 Cats \| Borla 3" Full Cat Back w/ S-Type\| Mighty Mouse Wild Catch Can\| Custom Holley Low side Fuel system\| TooHigh PSI Port Injection w/Holley Controller \| Forced Inductions Interchiller w/2 gallon fender tank \| TK Performance built 10L90

08-15-2021, 08:11 AM	#75
swisstyphoon Former GM Technician Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009 Location: Switzerland Posts: 396	Just checked mine, they are still looking good also. Attached Images __________________ 2018 Camaro ZL1 A10 Rotofab Big Gulp, Nick Williams 103, Magnuson 2650, 9.17" (14%) lower, 90mm upper, Vengeance Racing Heads (LME) Cam Package (Cammotion Stage 1), Johnson Lifters, DSX dual intank pump, Lingenfelter high flow check valve, Motion Raceworks Flex Fuel adapter, LPE Big Bore Hpfp, XDI 30% Injectors, BBK shorty headers, Custom 2.75" down pipes, Gesi Gen2 high flow cats, MM catch can. 2006 Silverado Duramax Diesel MPI Compound Turbo 40% over Injectors Efi Live DSP5 Tuning Follow me on Instagram: SwissZL1

08-15-2021, 09:50 AM	#77
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,561	Glad to hear they are working out! __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

08-16-2021, 08:58 AM	#81
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,789 View My Garage	Excellent news! __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

08-15-2021, 09:12 AM	#76
Z OH 6 Drives: 2021 Red Hot ZL1 Join Date: Sep 2020 Location: GA Posts: 3,493	That's great news guys. Thanks for the update.

08-15-2021, 11:22 AM	#78
gtfoxy Account Suspended Drives: '21 Wild Cherry ZL1 Join Date: Aug 2018 Location: WI Posts: 2,082	Very promising & Im hopeful you high powered guys have a more long term solution.

09-08-2021, 06:57 AM	#82
Cleancoupe Drives: 18 ZL1 1LE Join Date: Apr 2013 Location: Florida Posts: 705	Are the cats still holding up? Any issues with the CSP headers and clearance?

09-08-2021, 08:02 AM	#83
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,810	I think if your making 650-700 max I think the original Gen 1's might be safe BUT and this is a BUT the tune would need to be perfect and boost cant be crazy high or they'll def not last. [/QUOTE] I think you hit the nail on the head. I have been running Kooks high flow cats for 15k miles without issue. I haven't dynoed my car, but based on several, virtually identical builds that Ted Jannetty has done, I'm just under 700 whp on 93 and 725ish on e60. I'm really surprised that my cats are still alive. I have done at least a dozen track days on fast tracks. __________________ Baby Blue 2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned

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