C6 vs. C5Z06
Le Mans Master
Joined: Mar 2002
Posts: 6,885
Likes: 2
From: Corpus Christi TX
I've never owned a C6 (besides this C6Z), so I can only comment on my old C5Z.
showroom stock I ran 12.10 at 116, 1.96 60ft (350rwhp) I only made about 10 runs showroom stock, just couldn't help from modding it
air intake (vararam) and 315 BFG dr's only (365rwhp)
11.69 at 115, 1.65 60ft
cam, headers, et streets (405rwhp)
11.41 at 119, 1.58 60ft
cam, headers, 3.90 gears, et streets (400rwhp - loss a few due to gears)
11.28 at 122, 1.51 60ft
ended up changing the heads later on to cnc ls6, made about 450/405sae. Made no drag runs on this setup (had my mind on the C6Z and couldn't fathom breaking it so close to getting rid of it).
C6Z - 11.31 showroom stock. God help me if i mod this one - my wife is going to leave me and try and take 1/2 of a 427 Z with her
showroom stock I ran 12.10 at 116, 1.96 60ft (350rwhp) I only made about 10 runs showroom stock, just couldn't help from modding it
air intake (vararam) and 315 BFG dr's only (365rwhp)
11.69 at 115, 1.65 60ft
cam, headers, et streets (405rwhp)
11.41 at 119, 1.58 60ft
cam, headers, 3.90 gears, et streets (400rwhp - loss a few due to gears)
11.28 at 122, 1.51 60ft
ended up changing the heads later on to cnc ls6, made about 450/405sae. Made no drag runs on this setup (had my mind on the C6Z and couldn't fathom breaking it so close to getting rid of it).
C6Z - 11.31 showroom stock. God help me if i mod this one - my wife is going to leave me and try and take 1/2 of a 427 Z with her
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
I owned a 02 Z06 and now own a 06 C6.
My thoughts are this:
C5Z is stronger on top end, 65mph+
C6 is stronger down low but looses' it's breathe above 70mph
This is a stock to stock comparison with obviously me being the driver of both. Now my C6 has same mods my C5Z had and even untuned feels stronger than Z.
Also consider the Z's are lighter. I believe my 3LT package is about 3200+lbs before me. I weighed my C5Z and it was 3050 with 1/2 tank of gas and me out of the car.
This would also help explain why the C6 is stronger down low but looses' it's grunt up top.
My thoughts are this:
C5Z is stronger on top end, 65mph+
C6 is stronger down low but looses' it's breathe above 70mph
This is a stock to stock comparison with obviously me being the driver of both. Now my C6 has same mods my C5Z had and even untuned feels stronger than Z.
Also consider the Z's are lighter. I believe my 3LT package is about 3200+lbs before me. I weighed my C5Z and it was 3050 with 1/2 tank of gas and me out of the car.
This would also help explain why the C6 is stronger down low but looses' it's grunt up top.
Instructor
Joined: May 2006
Posts: 160
Likes: 0
From: Virginia Beach VA
For what it's worth...
I owned a 2003 C5 Z06. And I now own a 2007 A6 C6.
The Z is faster and pulls stronger from everything I can tell. The C6 is still fast but it feels....soft..for a lack of better words. It was like the Z was a violent fast, noisy, bumpy, low to the ground. And the C6 is smooth fast, quiet, not-bumpy, and a little higher.
The Z slammed by head into my seat if I wasn't careful
And the C6 presses it back into the seat.
Of course with the Z being a manual, my driving had a lot to do with it...but overall the Z felt faster..just not as refined.
I owned a 2003 C5 Z06. And I now own a 2007 A6 C6.
The Z is faster and pulls stronger from everything I can tell. The C6 is still fast but it feels....soft..for a lack of better words. It was like the Z was a violent fast, noisy, bumpy, low to the ground. And the C6 is smooth fast, quiet, not-bumpy, and a little higher.
The Z slammed by head into my seat if I wasn't careful
And the C6 presses it back into the seat.Of course with the Z being a manual, my driving had a lot to do with it...but overall the Z felt faster..just not as refined.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
[QUOTE
C6Z - 11.31 showroom stock. God help me if i mod this one - my wife is going to leave me and try and take 1/2 of a 427 Z with her [/QUOTE]
I bet you are going to miss her! By the way, really excellent times in your C5Z.
C6Z - 11.31 showroom stock. God help me if i mod this one - my wife is going to leave me and try and take 1/2 of a 427 Z with her
[/QUOTE]I bet you are going to miss her! By the way, really excellent times in your C5Z.
Le Mans Master
Joined: Oct 2005
Posts: 5,052
Likes: 889
From: Tampa Florida
I had an 02 C5Z before my C6. I must say honestly the C5Z made me giggle when I stepped on it. I only had Halltech intake, Borla Stingers and a tune, 375rwhp/360rwtq. This alone should tell you a lot. A C6 need headers to get this amount of horsepower. The C5Z was definitely a screamer. A head/cam C5Z could run with a stock C6Z through the 1/4. Top end, no.
Last edited by Fore58; Mar 16, 2007 at 06:52 AM.
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Melting Slicks
Joined: Jun 2005
Posts: 2,858
Likes: 1
From: Burlington County NJ
the fastest time ive seen for a showroom stock c5Z is 12.1 and for showroom stock C6 is 12.2.
It is true that the 405 HP Zs are a TAD quicker than the C6.
I blame Toque Managament.
It is true that the 405 HP Zs are a TAD quicker than the C6.
I blame Toque Managament.
Melting Slicks
Joined: Jan 2007
Posts: 2,633
Likes: 2
From: Evans Colorado
This "might" be attributed to drivers.
I generally don't see anybody but older generation guys with their wives driving the c6 around in my town. This doesn't necessarily mean they aren't great drivers, but odds are they are average at best.
By Contrast, most of the c5z's in town are driven by younger men...possibly more apt to spend time perfecting their driving.
But those are major assumptions, and we know what assuming does.
I agree that the tune on the c6 holds it back a bit. As with almost any drive by wire system, the factory is going to tune in some margin for error that they otherwise couldn't with a standard lingage throttle system.
Stock for stock, I'm going to agree that the C5Z has the advantage. Though I don't think it's enough to overcome poor driving.
I generally don't see anybody but older generation guys with their wives driving the c6 around in my town. This doesn't necessarily mean they aren't great drivers, but odds are they are average at best.
By Contrast, most of the c5z's in town are driven by younger men...possibly more apt to spend time perfecting their driving.
But those are major assumptions, and we know what assuming does.
I agree that the tune on the c6 holds it back a bit. As with almost any drive by wire system, the factory is going to tune in some margin for error that they otherwise couldn't with a standard lingage throttle system.
Stock for stock, I'm going to agree that the C5Z has the advantage. Though I don't think it's enough to overcome poor driving.
Safety Car
Joined: Dec 2006
Posts: 4,895
Likes: 0
From: Monterey California
that pretty much sums it up, that being said it wouldnt take much to make your c6 z51 run a great time there... of course both cars are great! and the c5 z did cost more so..
Le Mans Master
Joined: Mar 2002
Posts: 6,885
Likes: 2
From: Corpus Christi TX
actually, the C5Z has gone a few tenths faster. I know Ranger and my old Houstonian friend J-Rod went in the 11s showroom stock in '02 Z06s. Here's Rangers sig portion for his '02 car:
Bone Stock Stock Tires.11.81 117.26 1.78 60
the C5Z is REALLY a light car
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
You guys can compare posted 1/4 mile times all day long, and SOTPs. Try running them side by side from a roll where driver skill is pretty much a non-issue (just romp on the gas in the right gear). I think you will find that they are virtually dead even if they are both manual transmission, both stock etc.
Anyone who doesn't believe me come on down to my neck of the woods in your C5Z - and bring cash 'cause I don't take American Express
Anyone who doesn't believe me come on down to my neck of the woods in your C5Z - and bring cash 'cause I don't take American Express
Melting Slicks
Joined: Jun 2006
Posts: 2,208
Likes: 1
Le Mans Master
Joined: Mar 2002
Posts: 6,885
Likes: 2
From: Corpus Christi TX
You guys can compare posted 1/4 mile times all day long, and SOTPs. Try running them side by side from a roll where driver skill is pretty much a non-issue (just romp on the gas in the right gear). I think you will find that they are virtually dead even if they are both manual transmission, both stock etc.
Anyone who doesn't believe me come on down to my neck of the woods in your C5Z - and bring cash 'cause I don't take American Express
Anyone who doesn't believe me come on down to my neck of the woods in your C5Z - and bring cash 'cause I don't take American Express
Burning Brakes
Joined: Feb 2005
Posts: 1,113
Likes: 8
From: Whitehall PA
Guest
Posts: n/a
I don't know if this stuff is accurate. Looks about right based on the other cars however.
Note: A lot of those cars like the GT3 and Lotus Exige come with R compounds stock so that's really apples to oranges since the runflats are just plain awful(In comparison to Michelin Pilot Sport Cups). Even if you went to a BFG KD street tire you'd drop a few secs.