Katech Stage 2 C5 Z06
Thread Starter
Advanced
Joined: Oct 2020
Posts: 50
Likes: 16
From: California
Katech Stage 2 C5 Z06
Hello,
I’m looking at purchasing the Katech stage 2 kit and was curious if anyone here had bought it yet. I was also mainly curious about the cam (Katech-7293) and what type of performance it had and numbers it made.
I’m looking at purchasing the Katech stage 2 kit and was curious if anyone here had bought it yet. I was also mainly curious about the cam (Katech-7293) and what type of performance it had and numbers it made.
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,675
Likes: 7,306
From: CT
Possibly wrong page for your post. Better off in General or Tech.
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
Thread Starter
Advanced
Joined: Oct 2020
Posts: 50
Likes: 16
From: California
Possibly wrong page for your post. Better off in General or Tech.
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
So it’s a track build, time attack and HPDE. I have an unknown GM hot cam, I believe modified by Howard’s that is worn out. I already have ported heads, I’m more interested in a cam. I was curious if anyone has that cam or similar specs and what number they made.
I can include additional info on the car if needed.
I don’t want to go supercharge route, since I’ve heard things about the car running hot with them. Especially on the track with 20 mins sessions or abuse. The car already runs hot stock with no modifications.
I’m looking to get into the 550hp range.
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,675
Likes: 7,306
From: CT
For NA track use and 460ish rear wheel, that is beyond my depth. There is a handy page on the forum for autocross, but I will also point you to facebook where "Corvette track enthusiasts" and "corvette drift community" are highly active with experienced drivers and have an unbalanced amount of LS powered cars represented likely due to the bang-for-buck aspects.
Premium Supporting Vendor
Joined: Oct 2005
Posts: 13,975
Likes: 980
From: Clinton Township MI
C7 of Year Finalist (track prepared) 2019
Possibly wrong page for your post. Better off in General or Tech.
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
But that being said... is it the $7488 kit listed here?: https://katechengines.com/i-30497597...6-stage-2.html
Because all that is is a Heads/Cam kit for 3.5 times the price.
What is your GOAL for the car? Sound mean? Drag strip ripper? Beat the local dudes? 1/2 mile runs? Just want to have XXX power? XX.XX quarter mile time?
Because you can get an entire brand new supercharger kit, INSTALLED, and have a spare $1,489 left in your pocket while making 550hp TO THE WHEELS, not just at the crank like that Katech combo and have the car still drive and handle like stock.
OR you can buy a nice set of heads, choose a cam to fit your goals and make that same 550 crank hp for about $2500 give or take. It can be done cheaper if you have a set of 243 heads to send out to be CNC milled.
Options abound. Let the group know what your goal is and there are guys with a lot better cam knowledge than myself who can chime in and point you in the right direction.
Sounds like you're moving in the right direction though. The car will be fun!
A supercharger kit installed on a c5 z06 will drastically decrease handling performance for road course use and spirited driving. For a street / strip car, they can be a much better bang-for-buck though. You will make more power anywhere without a doubt.
I don't see how you can have $1500 in your pocket after purchasing a $6000 supercharger kit, that means labor and tuning is free. I guess you are assuming DIY'ers time is worth $0, and you would just use the provided basic tune.
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,675
Likes: 7,306
From: CT
No, Randy ar Ragin Racing sells and installs for $6195 having just looked it up. Not sure if he does more than load the base file or not. I'd have to ask but I'm not the one shopping.
Don't worry, I do push the Katech remote bleeder on as many people as possible. It makes sense to have the same adapter style as factory vs the popular crush washer. I have one of each and have had no issues with either one. You guys just make the better product for those.
Don't worry, I do push the Katech remote bleeder on as many people as possible. It makes sense to have the same adapter style as factory vs the popular crush washer. I have one of each and have had no issues with either one. You guys just make the better product for those.
Thread Starter
Advanced
Joined: Oct 2020
Posts: 50
Likes: 16
From: California
I am not sure if this is clear or not, but our pricing is with installation and tuning. This package contains more than $4000 in parts/cnc services before any labor or tuning charges. You could save a significant amount of money by using OEM lifters over Johnsons, not doing the CNC work, or doing a more basic spring kit, but that is not our ideal formula for street/trackday vehicles.
A supercharger kit installed on a c5 z06 will drastically decrease handling performance for road course use and spirited driving. For a street / strip car, they can be a much better bang-for-buck though. You will make more power anywhere without a doubt.
I don't see how you can have $1500 in your pocket after purchasing a $6000 supercharger kit, that means labor and tuning is free. I guess you are assuming DIY'ers time is worth $0, and you would just use the provided basic tune.
A supercharger kit installed on a c5 z06 will drastically decrease handling performance for road course use and spirited driving. For a street / strip car, they can be a much better bang-for-buck though. You will make more power anywhere without a doubt.
I don't see how you can have $1500 in your pocket after purchasing a $6000 supercharger kit, that means labor and tuning is free. I guess you are assuming DIY'ers time is worth $0, and you would just use the provided basic tune.
Zach,
I’m curious on the HP gains from the cam. I see there is a targets HP number of 550. Is that to the wheels or crank? I also am interested in the numbers of the cam; 219 / 227 @ 0.050, 0.607/0.614 lift, 112 LSA. I saw that other other cams have a higher duration and lift. A higher duration would some what increase the HP, correct?
I have LT headers, ported heads, and will be getting the FAST 92mm intake and TB.
Any experience with a C5 with similar mods and what type of numbers it made?
Le Mans Master
Joined: Sep 2017
Posts: 5,236
Likes: 1,529
From: Pasadena, MD
2023 C5 of the Year Finalist - Modified
Zach,
I’m curious on the HP gains from the cam. I see there is a targets HP number of 550. Is that to the wheels or crank? I also am interested in the numbers of the cam; 219 / 227 @ 0.050, 0.607/0.614 lift, 112 LSA. I saw that other other cams have a higher duration and lift. A higher duration would some what increase the HP, correct?
I have LT headers, ported heads, and will be getting the FAST 92mm intake and TB.
Any experience with a C5 with similar mods and what type of numbers it made?
I’m curious on the HP gains from the cam. I see there is a targets HP number of 550. Is that to the wheels or crank? I also am interested in the numbers of the cam; 219 / 227 @ 0.050, 0.607/0.614 lift, 112 LSA. I saw that other other cams have a higher duration and lift. A higher duration would some what increase the HP, correct?
I have LT headers, ported heads, and will be getting the FAST 92mm intake and TB.
Any experience with a C5 with similar mods and what type of numbers it made?
No way 550 is rwhp.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,675
Likes: 7,306
From: CT
You REALLY should talk to the guys competing with these cars regularly. Katech knows its business, but they come from a different part of the industry. A lot of guys are edging towards fat torque bands and keeping RPM limit to 6000 or so. Basically smaller cams or truck style cams without extreme lift. Reason for this is ease of maintenance and lack of stress on the typically stock or lightly modified valvetrain, but also because of the speeds reaches and transmission gears used for HPDEs where they're anticipating running in 2nd for most of a cone course where they're accelerating out of turns frequently and want to maximize power for the rpm range they are using.
But to each their own. Maybe spend more time talking and going back and forth with some guys or hit a few events FIRST to see what you like. Because it sounds as though you have a goal you wish to reach - and there are a thousand ways to get there - but that you don't have a firm grasp of cam design or how it will affect car performance in the way you're going to use the car. Events first. Build later.
But to each their own. Maybe spend more time talking and going back and forth with some guys or hit a few events FIRST to see what you like. Because it sounds as though you have a goal you wish to reach - and there are a thousand ways to get there - but that you don't have a firm grasp of cam design or how it will affect car performance in the way you're going to use the car. Events first. Build later.
Premium Supporting Vendor
Joined: Oct 2005
Posts: 13,975
Likes: 980
From: Clinton Township MI
C7 of Year Finalist (track prepared) 2019
Zach,
I’m curious on the HP gains from the cam. I see there is a targets HP number of 550. Is that to the wheels or crank? I also am interested in the numbers of the cam; 219 / 227 @ 0.050, 0.607/0.614 lift, 112 LSA. I saw that other other cams have a higher duration and lift. A higher duration would some what increase the HP, correct?
I have LT headers, ported heads, and will be getting the FAST 92mm intake and TB.
Any experience with a C5 with similar mods and what type of numbers it made?
I’m curious on the HP gains from the cam. I see there is a targets HP number of 550. Is that to the wheels or crank? I also am interested in the numbers of the cam; 219 / 227 @ 0.050, 0.607/0.614 lift, 112 LSA. I saw that other other cams have a higher duration and lift. A higher duration would some what increase the HP, correct?
I have LT headers, ported heads, and will be getting the FAST 92mm intake and TB.
Any experience with a C5 with similar mods and what type of numbers it made?
You REALLY should talk to the guys competing with these cars regularly. Katech knows its business, but they come from a different part of the industry. A lot of guys are edging towards fat torque bands and keeping RPM limit to 6000 or so. Basically smaller cams or truck style cams without extreme lift. Reason for this is ease of maintenance and lack of stress on the typically stock or lightly modified valvetrain, but also because of the speeds reaches and transmission gears used for HPDEs where they're anticipating running in 2nd for most of a cone course where they're accelerating out of turns frequently and want to maximize power for the rpm range they are using.
But to each their own. Maybe spend more time talking and going back and forth with some guys or hit a few events FIRST to see what you like. Because it sounds as though you have a goal you wish to reach - and there are a thousand ways to get there - but that you don't have a firm grasp of cam design or how it will affect car performance in the way you're going to use the car. Events first. Build later.
But to each their own. Maybe spend more time talking and going back and forth with some guys or hit a few events FIRST to see what you like. Because it sounds as though you have a goal you wish to reach - and there are a thousand ways to get there - but that you don't have a firm grasp of cam design or how it will affect car performance in the way you're going to use the car. Events first. Build later.
Thread Starter
Advanced
Joined: Oct 2020
Posts: 50
Likes: 16
From: California
550 is at the crank, we typically see between 400 and 450whp depending on the combination, cam choice. If you give us application targets/goals, we can tell you the package that you need.
Our background is from award-winning road racing on a professional level. Our primary goal in HPDE packages is retaining area under the curve. Extreme lift does not determine valvetrain wear, we have run as high as .725 lift with hydraulic roller (and the appropriately modified valvetrain geometry, with a stock 1.8 rocker arm) with near 0 wear. There are a lot of factors that come into play when you consider your engine's valvetrain, this is why we validate any package we sell on our spintron in-house, with a safety factor of 1000 RPM. If you just slap in a generic cam that has high lift without the supporting items, you likely will get expedited wear. This isn't the lift's fault, it is the entire system overall.
Our background is from award-winning road racing on a professional level. Our primary goal in HPDE packages is retaining area under the curve. Extreme lift does not determine valvetrain wear, we have run as high as .725 lift with hydraulic roller (and the appropriately modified valvetrain geometry, with a stock 1.8 rocker arm) with near 0 wear. There are a lot of factors that come into play when you consider your engine's valvetrain, this is why we validate any package we sell on our spintron in-house, with a safety factor of 1000 RPM. If you just slap in a generic cam that has high lift without the supporting items, you likely will get expedited wear. This isn't the lift's fault, it is the entire system overall.