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Discussion Starter #1
Again, I am interested in the Z06 and may be picking one up in the next 3-12 months. What are the basic upgrades that most people do on the Z06? I am interested in learning about intake, manifold, headers, and exhaust upgrades for the Z06. Also, it would appreciated if anyone could point me to the information that shows RWHP numbers for stock Z06's versus those with the aforementioned upgrades. Thanks again.

-Ben FR
 

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Ben,

If you read everyone's signatures, you can see what most of us are upgrading to. 1. Intake 2. Shifter 3. Exhaust

FRC Tom has dynoed his Z after every mod, he can best tell you the upgrade HP gains.

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Frank Calmes Quicksilver 2001 Z06
Vortex Rammer & Power Duct, B&B PRT's with Speedway Tips, Ripper Shifter with Momo Knob, Chrome Z06 Wheels

Sherylann Calmes Black 2001 Z06
Vortex Rammer & Power Duct, Chrome Z06 Wheels

 

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Ben,

I just (two hours ago, before the rain) put a Donaldson (filter) on my Z. WOW! Holy crap, what a difference!

I also put a Ripper with Hardbar knob in the car. Now shifting is a lot more fun.

Don't know if/when I'll mess with the exhaust. Just not sure about that yet...

But, Frank hit the nail on the head. Befire I made any mods, I was told the same thing: Shifter, intake, and exhaust (I keep hearing "headers," specifically).

Oh, and lowering the car via the stock hardware (just turning it -- no need to add/take anything out) tightens up the ride and make it look even better!

BTW, where in Philly are you, Ben?

Gotta get yourself a Z, Ben! What a great car.

-Kirk
 

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Discussion Starter #5
Kirk,

Hi, actually I am a student at Wharton (upenn). I'm currently in Florida for the summer and will be back up in Philly in the fall. I live near 40th and Locust. If you don't see me up there with a Z, you'll find me in an '00 M coupe.

-Ben FR
 

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I did, intake (Vortex), shifter (B&M Ripper), and exhaust (B&B PRT's). Only dyno'ed 343.7 hp 344.9 ft/lbs of torque with 2000 miles on it. It now has almost 6000 miles and I'm sure next time it's dyno'ed the numbers will be better. The car seems to get stronger with mileage.
 

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Discussion Starter #7
Are there any real benefits then of switching the exhaust? I read that the exhaust system of the Z06 is extremely light (i.e. titanium) and is free-flowing. It also seems to me that the LS6 engine is very similar to the LS1 engine, and it is basically the product of better aspiration throughout the engine.

Knowing that the Z06 was specifically designed for the enthusiast, I would be very suspect of any upgrades that add significant value to the car itself.

Do most of you focus on performance-oriented upgrades, cosmetic, or utilitarian upgrades?

-Ben FR
 

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Don't say only Dave, your #s are close to mine.
Stock-----------------330 hp
Ram Air---------------337 hp + 7 hp
X Pipe, Corsas--------345 hp + 8 hp
TTS Headers-----------354 hp + 9 hp
Ported TB-------------350 hp - 4 hp
MTI UD Pulley---------355 hp + 5 hp
Programmed Computer----NA
As you can see do not waste your $s on a ported TB.
I have a 9 am 2morrow for the final dyno.
I have put the stock TB back on and a TB by-pass. It will be about 84 degrees in the morning and humid but I hope with the computer programming I break 365 rwhp.
My stock #s are lower and higher than others but you can get an idea of what kind of gains some of these mods will give you.
 

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My first choice in mods would be the exhaust. Love the sound of my Corsa Indys!

Zippy /phpBB/images/smiles/icon_smile.gif /phpBB/images/smiles/icon_smile.gif
 

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Okay, where can one get his/her car checked on a dyno? How much does it normally cost? And how long does it normally take to do? Sorry for the seemingly 'dumb' question, but I have to learn somehow. /phpBB/images/smiles/icon_smile.gif
 

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On 2001-06-13 05:24, proexpert spewed forth this drivel:
Okay, where can one get his/her car checked on a dyno? How much does it normally cost? And how long does it normally take to do? Sorry for the seemingly 'dumb' question, but I have to learn somehow. /phpBB/images/smiles/icon_smile.gif

Here is a link to DynoJets in PA
http://www.dynojet.com/maps/autodynos/pa.htm
The time factor is just how long it takes them to set the car up, expect to be there for an hour.
The cost $40-$75
 

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<<Knowing that the Z06 was specifically designed for the enthusiast, I would be very suspect of any upgrades that add significant value to the car itself. >>

Ben, I'm not sure that I understand your statement here. Are you saying that you'd be suspect of a mod that's supposed to make the car better, 'cause if it were true then GM would have made the car that wy to begin with? What do you mean by "add value" to the car?

If I have your concern correct, then I'd suggest that the Z06 is STILL a "mass production" car, and GM (and all car makers appealing to a large market) is forced to find a balance between cost, performance, and driveability. The car has to be amiable to the "average" buyer, and not just be fast (for the speed enthusiasts). So, is the car going to be as good (read: fast and efficeint) as it can be with aftermarket add-ons? No way. Did the GM engineers do a decent job of finding the balance I noted here? Sure. Again, there's almost always room for improvement, though.

Take the air box, for instance. I just put a Donaldson filter on my car last night. Upon taking out the factory airbox (you remove the whole unit with most aftermarket intake set-ups), I got to see just how restrictive the stock unit is. It's downright ABSURD. Now, why is it like that from the factory? Looking at the design, I really don't know (it's THAT resptrictive). But maybe GM "had" to make it that way. Maybe increased breathing changes the fuel ratio, and maybe that would have hurt the exemption that the CAGS seeks to gain. And maybe more airflow would have required a more expensive airfilter... There seems to be a trickle-down effect with some of the reasons for the engineering on these and most cars -- and maybe GM couldn't have "afforded" to do this intake another way, even though the car would RUN better if they had.

-Kirk
 
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