Originally Posted by jvp

Jason -

I've 'brawled' with you plenty of times before, but not this time. Sincere question. HP=(Tq*RPM)/5252. Therefore, the Tq and HP lines should ALWAYS cross at 5252RPMs, right? The graph you've posted shows them crossing closer to 5500? Am I misreading?

jas

Originally Posted by modernfast

What is the rear wheel HP & TQ

Originally Posted by WeaponsGradeTorque

These are results that can be trusted. This cam would probably show 550 rwhp on a dyno jet.

Originally Posted by vegasdude

This must be for a track only car, because if I can't pass emissions then Nevada will not register the car...........so much for the stage 3.................

Originally Posted by Short-Throw

Camshaft:Price: $500

Springs:Price: $256/set

Retainers:Price: $256/set

Integrity on claimed HP: Priceless!

Originally Posted by vegasdude

I hope I'm not freaking out!

Originally Posted by Katech

For those of you who have headers and are looking for that next step, or maybe just getting started modifying your Z06 here is a cam that you can have confidence in.

First, this camshaft was developed by the same engineers that contribute to the factory GM race programs. It was validated on our Optron valvetrain dynamics test cell for superior valve control and durability. You can be confident that when installed in your vehicle, you have a margin of safety far beyond normal operating range.

Second, this camshaft has been around for almost a year now and has produced many satisfied customers. It may not be the highest peak horsepower producing camshaft on the market, but it's gobs of torque pin you to the seat and the comfortable drivabilty offers a great balance. After all, if you don't enjoy driving the car it doesn't matter how much horsepower you make.

Third, it's ease of installation. All you need is the cam, springs and titanium retainers and you have a proven package. We recommend using Kooks headers with this package and also typically use Corsa exhaust. Of course you'll need a chassis dyno or mail order tune. If you ship me your PCM we can do that, or you can purchase through Halltech's stage 3 package.

This camshaft has satisfied the horsepower needs of other tuners such as:
Halltech (soon to be released stage 3 package)
Breathless Performance
Extreme Motorsports
Guldstrand Motorsports

SPECS & PRICING:
Camshaft:
Duration @ .050 - 220/244
Lift - .615/.648
LSA - 110
ICL - 106 (installed straight up)
Price: $500

Springs:
Single beehive
65g
Install height: 1.850
Price: $256/set

Retainers:
Titanium
5.5g
Uses production locks and lash caps
Price: $256/set

Power (STP) Engine Dyno:
600hp 570lb-ft of torque


Sound clips:
http://www.katechengines.com/street_...e_packages.php


To order, call 866-Katech1. We can usually ship same day.


FAQ:
Will this void my warranty?
Depends on the specific failure circumstance and your dealer's willingness to work with you.

What kind of gas mileage will I get?
Near-stock gas mileage...if you can keep your foot out of it

Will this pass emissions?
Probably not.

Do you have anything that makes more power than this one?
This is our best street cam for power, torque and drivability. We have tested others, but you make sacrifices in torque and drivability.

How much rwhp will this make?
Depending on whose chassis dyno, we have seen 508-557rwhp

Can I run this without headers?
You could, but you would make less power. I don't know exactly how much because everyone we have done has had Kooks headers.

Do I need to modify the heads or port?
We have done some ported head combos for customers who use this cam and want every last bit of power possible, but it's not absolutely necessary.

Can you install the cam?
Yes, we do complete vehicles and any type of install you need right here at Katech.

I live far, can you recommend anybody else to install the cam?
One of our dealers could install the cam for you.
West Coast - Guldstrand Motorsports, Burbank CA
Southwest - Arizona Power and Sound, Tempe AZ
Southeast - Thunder Racing, Baton Rouge LA
East Coast - Breathless performance, NJ

Originally Posted by JDRacing

As a fan of both Halltech and Katech, I am following the development of the Stage 3 package as well, and am wondering if we can get some certainty as to its ability to pass emissions, particularly in CA (since if it passes CA, it's probably OK everywhere).

I suspect that headers might present a problem with the visual inspection in CA, although I don't know for sure. On the other hand, given the relatively narrow LSA (especially compared to stock) of the Katech cam, I'm assuming that the greater intake/exhaust overlap of this cam is very responsive to well engineered headers (substantial scavenging opportunities). So I'm guessing that headers are a particularly important component of the power increase.

At the same time the valve overlap likely makes passing the performance portion of the emissions testing more difficult, if not impossible.

Jason, has anyone to your knowledge gotten emissions readings with this set up? As Vegasdude points out, many of us would probably make a decision based on whether we could get it through our state's emissions testing.

Originally Posted by Mako7

I think a LSA of 110 is pretty far from stock isn't it? A bit on the lump side?

I seriously doubt that any change in cam to a cam that provides any material (worthwhile) increase in power will pass CA emissions. In fact, I have long tube headers, high flow cats and tune and I suspect that will not pass CA sniffer emissions.

Originally Posted by Undy

Given the usual combination of street and weekend track racing (2 to 4 track sessions per year), what's the life cycle of your provided cam springs? In how many miles do you recommend changing them out? I put 16,000 to 20,000 miles per year on my Zs and don't need a yearly valve spring change on top of everything else.

Dave

Originally Posted by Katech

It really depends on how you drive the car and how much time you spend over 6000rpm. They could potentially last a very long time on a street car. There is no set mileage interval for changing the springs.