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C-5 with Z06 Performance

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Old Dec 6, 2002 | 01:05 AM
  #1  
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Default C-5 with Z06 Performance

I don’t want to spend a fortune but I would like to have about Z06 performance. I currently have a ’97 C-5 6-Speed. I would like to get to about 400 horsepower and improve handling.

I have heard that a coupe with coil over shocks will corner with a Z06 ($1500) Does this make the ride unbearable for the daily drive.

Then I need to get the horsepower to from 345 to 405

Vararam claims a 40 HP improvement to 385 ($500)

Aftermarket X Pipe maybe 5 Horsepower ($150)

Corsa Catback Exhaust maybe 20 horsepower ($800)

Would that make 405? About $1500 bucks?

Total $3000

I’m just going by what they claim is this unreasonable? What would you do to get budget Z06 performance?
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Old Dec 6, 2002 | 01:19 AM
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Default Re: C-5 with Z06 Performance (Belloc)

If you want Z06 performance I would change my cam and install LT headers. I don't believe a Corsa catback will give you 20 HP or the Vararam will give 40 HP. I would also consider going with 3.90 or 4.10 gears in an M6.


98 A4
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LS6 Intake
TPIS Headers
Underdrive Pulley
ST3500
3.73 Gears
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172 T.stat


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Old Dec 6, 2002 | 01:23 AM
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Default Re: C-5 with Z06 Performance (Belloc)

Don't forget you weigh more than my Z06.
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Old Dec 6, 2002 | 04:19 AM
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Default Re: C-5 with Z06 Performance (Belloc)

See my mods and add headers and you should be pretty close.
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Old Dec 6, 2002 | 05:11 AM
  #5  
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Default Re: C-5 with Z06 Performance (jlamay)

There are a number of combos that will get you to 405 flywheel HP; cam, headers, and one of the (many) cold air setups should do it.

Z06 handling isn't much of a problem either. Z51 sway bars and springs will replicate the suspension, so the only other issue is the weight penalty, not really noticeable on the street. With coilovers and even heavier bars, you'd be beyond a stock Z06, but there is a price to pay in ride territory.

Braking should be equal; red paint doesn't reduce stopping distances.
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Old Dec 6, 2002 | 05:15 AM
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Default Re: C-5 with Z06 Performance (jlamay)

A good idea would be to call one of our supporting tuners for advice. The claimed horsepower increases by the mods you have listed are just that, "claimed". I'd say a more accurate estimate of the increases you'll see is 20 from the Vararam, 5 from an exhaust and 2 or 3 from an x-pipe.

To really improve acceleration, (along with the mods you have listed) change to 3.90 or 4.10 gears along with a set of longtube headers, an LS6 intake. That'll be a nice difference and will probably put you in the ballpark of a stock Z06. Good luck! :cheers:
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Old Dec 6, 2002 | 08:22 AM
  #7  
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Default Re: C-5 with Z06 Performance (QuickSilver97)

I agree with everyone on the gears. The MN12 trans. thru the 3.42 gear is roughly the equivalent of the MN6 thru a 3.90 gear.

Another big difference that hasn't been listed yet are the wheels and tires on the Z06 - wider wheels and stickier tires contribute immensely to the overall handling of the Z06.
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Old Dec 6, 2002 | 09:02 AM
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Default Re: C-5 with Z06 Performance (Mitch C)

I agree with Mitch, the Corsa will not give you squat, I don't think the vararam will give you close to 40 hp, if you can get away with it where you live an off road x will give you apprx 20rwhp, the 390 or 410 gears will give you the feeling that you have 50 to 70hp. A good intake (the vararam is as good as any) a performance exaust, off road x (if possible), zo6 intake, ls1 edit, 390 410 rearends. A combination of these will get you there without internal mods.
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Old Dec 6, 2002 | 10:04 AM
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Default Re: C-5 with Z06 Performance (NEPTUNEBILL)

Boy, we have a smart forum.

I agree with the previous posts. The changes you have mentioned will not get you there. In fact, look at my sig. and you will see more accurate numbers. (I will probably pickup 10-20hp from tuning).

I am on a quest to do the same thing. Here is my current plan:

1. 3.42 gears
2. Yank SY3500
3. Thunder Racing CAM swap. 224/224 112 *probable cam
-- Should be as good or better than stock Z06 w/ my current mods + these

4. Headers
5. Heads

-- Should put me in the 400-450 rwhp range.

Enjoy. . . :smash: :smash: :smash: :smash:
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Old Dec 6, 2002 | 10:51 AM
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Default Re: C-5 with Z06 Performance (Belloc)

Heads/Cam/Headers and you are good to go. The VARARAM is great, but 40HP is not possible.
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Old Dec 6, 2002 | 10:52 AM
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Default Re: C-5 with Z06 Performance (hogurt)

Boy, we have a smart forum.

I agree with the previous posts. The changes you have mentioned will not get you there. In fact, look at my sig. and you will see more accurate numbers. (I will probably pickup 10-20hp from tuning).

I am on a quest to do the same thing. Here is my current plan:

1. 3.42 gears
2. Yank SY3500
3. Thunder Racing CAM swap. 224/224 112 *probable cam
-- Should be as good or better than stock Z06 w/ my current mods + these

4. Headers
5. Heads

-- Should put me in the 400-450 rwhp range.

Enjoy. . . :smash: :smash: :smash: :smash:
You will be hard pressed to see over 400 rwhp with those mods. on a a/4. See my sig., which is a good representation of the results you can expect. JMHO

BTW, don,t forget the FLP IV tranny after your H/C!!! :cheers:
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Old Dec 6, 2002 | 11:03 AM
  #12  
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Default Re: C-5 with Z06 Performance (jlamay)

See my mods and add headers and you should be pretty close.
:iagree:

See my mods, after WOT tuning I'm making 337 RWHP. The stock Z06's seem to be averaging ~ 350 RWHP. At the track I run wheel to wheel with a buddy's 01 Z06, (385HP). Who ever gets out of the hole first wins.

I figuring I'm making ~395 - 400 FWHP. I've got to be a little over the 385 or the M12 would simply out pull my MN6. I haven't dyno'd since adding the Corsa X-pipe and Stingers. It's just possible I've picked up another 5 - 10 but, I'm not counting on it.

After slicks, I think my next mod will be the Z06 intake which seems to be worth another 10 HP from what I've been reading here. I'll probably follow that up with either 3.90 or 4.10 gears. The 3.90's and MN6 put you close to the Z06 M12 & 3.42's and, all else being equal, you should out pull the Z06 in
4th. :D

LOL :cheers:
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Old Dec 6, 2002 | 11:32 AM
  #13  
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Default Re: C-5 with Z06 Performance (scool93535)

damn i got to get a dyno run i must be in the ballpark of the z06. maybe if i run one.... :jester
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Old Dec 6, 2002 | 11:35 AM
  #14  
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Default Re: C-5 with Z06 Performance (marco383)

There are a number of combos that will get you to 405 flywheel HP; cam, headers, and one of the (many) cold air setups should do it.

Z06 handling isn't much of a problem either. Z51 sway bars and springs will replicate the suspension, so the only other issue is the weight penalty, not really noticeable on the street. With coilovers and even heavier bars, you'd be beyond a stock Z06, but there is a price to pay in ride territory.

Braking should be equal; red paint doesn't reduce stopping distances.
WHAT?!?!! The Z51 is NOT the Z06 suspension and it's not the red paint on the brakes but the Z06 wieghs less. Remember not only does the Z06 have different sway bars but the shocks have different valving too.
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Old Dec 6, 2002 | 12:34 PM
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Default Re: C-5 with Z06 Performance (Belloc)

Thank you all for your responses I will use these to help evaluate which items to get. I am looking at an engine budget of around 2 grand. With that in mind what items should I get to get maximum horsepower? Here is my guesstimate list?

Vararam - $500 – 20 Horsepower (Claimed 40 Horsepower)
Cam - $400 – 15 Horsepower (I’m guessing here)
Z06 Intake - $500 - 10 Horsepower (Claim 15)
X Pipe - $150 – 5 Horsepower (I’m guessing again)
LS1 Edit - $450 - ? Horsepower

Total 400 maybe??? Any help would be appreciated, I new to this. I looked at new gears but that would blow the budget pretty bad.
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Old Dec 6, 2002 | 12:48 PM
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Default Re: C-5 with Z06 Performance (Belloc)

But w/o gears or some weight reduction, you'd need more than 405FWHP to match a Z in the 1/4.

Also, the bigger wheels and bigger/better tires help the Z06 brake better than other C5's.

Does the Z06 have bigger rotors, or are they the same as other C5's?
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Old Dec 6, 2002 | 01:43 PM
  #17  
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Default Re: C-5 with Z06 Performance (Belloc)

Thank you all for your responses I will use these to help evaluate which items to get. I am looking at an engine budget of around 2 grand. With that in mind what items should I get to get maximum horsepower? Here is my guesstimate list?

Vararam - $500 – 20 Horsepower (Claimed 40 Horsepower)
Cam - $400 – 15 Horsepower (I’m guessing here)
Z06 Intake - $500 - 10 Horsepower (Claim 15)
X Pipe - $150 – 5 Horsepower (I’m guessing again)
LS1 Edit - $450 - ? Horsepower

Total 400 maybe??? Any help would be appreciated, I new to this. I looked at new gears but that would blow the budget pretty bad.
Don't forget to shop around. I seem to recall reading on the forum somebody found the Z06 manifold for less then $400. Also, with the 97 if you change the air filter / intake, you should add a fuel recurve line. It allows you to pick up vacumn to the fuel pressure regulator from a different location. The after market filter system will reduce the vacumn in front of the TB. The recurve allow you to tap into vacumn after the TB. :cheers:
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Old Dec 6, 2002 | 01:47 PM
  #18  
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Default Re: C-5 with Z06 Performance (90 droptop)

4. Headers
5. Heads

-- Should put me in the 400-450 rwhp range.

Enjoy. . . :smash: :smash: :smash: :smash:

You will be hard pressed to see over 400 rwhp with those mods. on a a/4. See my sig., which is a good representation of the results you can expect. JMHO

BTW, don,t forget the FLP IV tranny after your H/C!!! :cheers:
Are you saying that you won't pick up close to 100 hp w/ a head and cam?

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Old Dec 6, 2002 | 01:53 PM
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Default Re: C-5 with Z06 Performance (scool93535)

There have been several threads on this board lately about a cam swap. On average people are gaining 30-50 hp.
There are a number of places that offer nice head/cam packages. If you pair that w/ 3.42's and a TC. . .you will love racing a Z.
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Old Dec 6, 2002 | 01:56 PM
  #20  
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Default Re: C-5 with Z06 Performance (hogurt)

Quote from another POST:
quote:
--------------------------------------------------------------------------------
So, are heads/cam something that can be done for say, under 3K?

--------------------------------------------------------------------------------

Yes sir! Our Stage II heads and cam package typically makes around 420+ RWHP and drives like a champ on the street. The heads are $2399.95 complete with Stainless steel Custom made valves, Titanium reatiners, competition porting of the intake and exhaust runners, reconfiguration of the combustion chamber which aids in flame propagation resulting in a more complete burn, full polishing of the intake, exhaust, and combustion chambers, and assembly. You can see some pictures online on our site or come by and see them in person. We have a stage II set as well as a stage III set in stock and we try adn always keep it that way. We are trying to take the hard part of waiting out of the speed game.
We have a full line of Comp Cams Camshafts that are custom ground to our specs. These will run you $374.95 and we have many different grinds in stock.

---------------------

This came from Chris at Speed demons. :smash: :smash: :smash:
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