Kooks Green Cats question

Doc_Scott_PT · 01-14-2021, 09:54 PM

I'm looking at a bolt on ported blower build, no meth, no cam, no e85, with kooks headers, 2.30 pulley, and new heat exchanger with larger coolant tank at around 650/700 who, how well will the green cats hold up to that power and to being daily driven? I need reliability more than anything else.

Camaro1973 · 01-15-2021, 01:02 AM

Quote:

Originally Posted by Doc_Scott_PT

I'm looking at a bolt on ported blower build, no meth, no cam, no e85, with kooks headers, 2.30 pulley, and new heat exchanger with larger coolant tank at around 650/700 who, how well will the green cats hold up to that power and to being daily driven? I need reliability more than anything else.

Fine. I would be concerned when you go over 800rwhp

SJFGTO · 01-15-2021, 06:40 AM

If you are going to run cats, those are the ones to have. At your power level they will be fine.

Z OH 6 · 01-15-2021, 07:00 AM

Quote:

Originally Posted by Doc_Scott_PT

I'm looking at a bolt on ported blower build, no meth, no cam, no e85, with kooks headers, 2.30 pulley, and new heat exchanger with larger coolant tank at around 650/700 who, how well will the green cats hold up to that power and to being daily driven? I need reliability more than anything else.

They will hold up just fine. My car makes more power than that with Kooks 2" headers and green cats and its a daily driver.

hawk02 · 01-15-2021, 07:04 AM

Quote:

Originally Posted by Doc_Scott_PT

I'm looking at a bolt on ported blower build, no meth, no cam, no e85, with kooks headers, 2.30 pulley, and new heat exchanger with larger coolant tank at around 650/700 who, how well will the green cats hold up to that power and to being daily driven? I need reliability more than anything else.

If you need reliability more than anything else, I don’t understand why you want to mod the car? Keeping the car stock gives you the most reliable vehicle plus keeps your power train warranty intact.

L78toLT1 · 01-15-2021, 07:36 AM

Green cats will be fine with your proposed mods. In fact, you would most likely be ok with the standard Kooks cats. I've been running the "high flow" cats for 10k miles with the mods in my signature. I do run e60 almost exclusively which helps keep things cool. I read that std cats are good for 1500 F, greens 2300.

Markoz28 · 01-15-2021, 01:39 PM

Kooks cats should have no problems.

Nice build BTW. Any 103 TB and Big Gulp?

Repman · 01-15-2021, 01:49 PM

If you road race your car at that level they will not hold up , ask me how I know !

ZLAV1N · 01-15-2021, 02:32 PM

Quote:

Originally Posted by Repman

If you road race your car at that level they will not hold up , ask me how I know !

are you speaking about the - Green Cats? or Kooks Cats?

What would classify as road racing? Time? Track days? Speeds?

Z OH 6 · 01-15-2021, 03:41 PM

Quote:

Originally Posted by CS10SS

are you speaking about the - Green Cats? or Kooks Cats?

What would classify as road racing? Time? Track days? Speeds?

There's no reason to believe the green cats will not hold up if the car is tuned correctly, I believe each cat is rated to 400hp per cat so its really only above 800hp that they might start to become restrictive. That being said, I ran stock cats on my 1000hp Hellcat for almost 2 years without any issues and those were stock. The Kooks Green cats are made by GESI and are the best available, they are not cheap and they are very durable.

Doc_Scott_PT · 01-18-2021, 11:15 PM

Quote:

Originally Posted by hawk02

If you need reliability more than anything else, I don’t understand why you want to mod the car? Keeping the car stock gives you the most reliable vehicle plus keeps your power train warranty intact.

Another way of saying "I want more power conservatively as necessary".

Doc_Scott_PT · 01-18-2021, 11:17 PM

Quote:

Originally Posted by Markoz28

Kooks cats should have no problems.

Nice build BTW. Any 103 TB and Big Gulp?

Yup and yup! Basically bolt on power, good horsepower without affecting drivability, with more cooling and can road trip the car cross country.

01-14-2021, 09:54 PM	#1
Doc_Scott_PT 66,144 hrs in the making Drives: 2021 ZL1 Riverside Blue Join Date: Oct 2019 Location: League City, TX Posts: 42	Kooks Green Cats question I'm looking at a bolt on ported blower build, no meth, no cam, no e85, with kooks headers, 2.30 pulley, and new heat exchanger with larger coolant tank at around 650/700 who, how well will the green cats hold up to that power and to being daily driven? I need reliability more than anything else. Last edited by Doc_Scott_PT; 01-14-2021 at 10:05 PM.

01-15-2021, 06:40 AM	#3
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	If you are going to run cats, those are the ones to have. At your power level they will be fine. __________________ 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...

01-15-2021, 07:36 AM	#6
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,786	Green cats will be fine with your proposed mods. In fact, you would most likely be ok with the standard Kooks cats. I've been running the "high flow" cats for 10k miles with the mods in my signature. I do run e60 almost exclusively which helps keep things cool. I read that std cats are good for 1500 F, greens 2300. __________________ 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

01-15-2021, 01:39 PM	#7
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	Kooks cats should have no problems. Nice build BTW. Any 103 TB and Big Gulp?

01-15-2021, 01:49 PM	#8
Repman Drives: 18 Black ZL1-1LE Join Date: Jun 2017 Location: Kennesaw, Ga Posts: 201	If you road race your car at that level they will not hold up , ask me how I know !

User Name		Remember Me?
Password