[Z06] C5Z in comparison to C7
Thread Starter
Intermediate
Joined: Feb 2008
Posts: 41
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C5Z in comparison to C7
Now that we know the horsepower of the C7, will a stock C5Z run with the new kid on the block? I own a cammed 02 C5Z and still love my car, but I'm not really sure if I want to upgrade. Chevy seems to have really improve on the vette and I think the C7 wont be a slouch on the street.
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Now that we know the horsepower of the C7, will a stock C5Z run with the new kid on the block? I own a cammed 02 C5Z and still love my car, but I'm not really sure if I want to upgrade. Chevy seems to have really improve on the vette and I think the C7 wont be a slouch on the street.
Burning Brakes
Joined: Oct 2005
Posts: 767
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The C7 should put down around 410rwhp and weight should be around 3225 lbs..The car is capable of an 11.8@121mph quarter mile time. I'm sure that a C5 Z06 with a small cam, ported heads and Longtube Headers with exhaust will run with it with no problem.. The bar is raised with every generation of Corvette.. The C5 Z06 still holds its weight very well with a 3117 lb curb weight, even after all these years..
Thread Starter
Intermediate
Joined: Feb 2008
Posts: 41
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I'm putting down 421rwhp with a torquer2 cam and lg pros. Pretty sure I will be able to keep up with one. The C5Z06 is still a monster on the street. I wont sell it,because it was the vette I really wanted when it came out in 2001. In all reality, How many 11sec. and below cars do you really see on the street?
Drifting
Joined: Apr 2008
Posts: 1,464
Likes: 32
From: Ocala FL
I'm putting down 421rwhp with a torquer2 cam and lg pros. Pretty sure I will be able to keep up with one. The C5Z06 is still a monster on the street. I wont sell it,because it was the vette I really wanted when it came out in 2001. In all reality, How many 11sec. and below cars do you really see on the street?
Advanced
Joined: Mar 2012
Posts: 65
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From: Hawaii
If you go by lbs/hp, it seems to come out like this; stock C7 = 3300 lbs/455 hp = 7.25 lbs/hp. Stock C5Z06 = 3118 lbs/405 hp = 7.69 lbs/hp. So let's say you add to the Z, CAI = 10hp, headers = 20 hp, tune = 10 hp. That equals 445 hp, so 3118 lbs/445 hp = 7.00 lbs/hp.
Now we have C7 Stingray 7.25 lbs/hp and C5Z06 7.00 lbs/hp. So I would say on the street it's going to be a drivers race for sure. Now I know the C7 has better nannies, launch control, rev match and such. Also the suspension is probably better.
So on a track the C7 is probably going to edge out the C5 Z and also the extra hp will let the C7 pull away at higher speeds, but I think on the street the C7 is going to have it's hands full trying to out run the C5 Z06. It will be the driver that makes the difference on the sreet.
Now we have C7 Stingray 7.25 lbs/hp and C5Z06 7.00 lbs/hp. So I would say on the street it's going to be a drivers race for sure. Now I know the C7 has better nannies, launch control, rev match and such. Also the suspension is probably better.
So on a track the C7 is probably going to edge out the C5 Z and also the extra hp will let the C7 pull away at higher speeds, but I think on the street the C7 is going to have it's hands full trying to out run the C5 Z06. It will be the driver that makes the difference on the sreet.
Last edited by Ultra_Miner; May 30, 2013 at 11:28 AM.
Melting Slicks
Joined: Sep 2006
Posts: 2,728
Likes: 142
From: Iowa
The C7 should put down around 410rwhp and weight should be around 3225 lbs..The car is capable of an 11.8@121mph quarter mile time. I'm sure that a C5 Z06 with a small cam, ported heads and Longtube Headers with exhaust will run with it with no problem.. The bar is raised with every generation of Corvette.. The C5 Z06 still holds its weight very well with a 3117 lb curb weight, even after all these years..
If it truly is 455hp, it won't be putting down 410rwhp.
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Drifting
Joined: Oct 2009
Posts: 1,438
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From: Always in my lane.
I would think that a stock C5Z with just heads,headers and tuning would be in the ballpark with a C7,especially with the C5Z being a bit lighter.But with the numbers the C7 has, personally, if I were blessed with one,aftermarket intake, tune, and thats it. Even my current Z has more power than I would normally need. And the C7 has enough going for it stock, you could pretty much avoid the corvette tax on mods. 
Race Director
Joined: Jan 2008
Posts: 16,028
Likes: 170
From: oregon
driver would be a big part of it. the c7 should be a tad quicker in a straight line and comes with the new michelin pss.
a c5z with that tire or better still has a shot if the driver can out brake and out drive the c7. even stock vs stock. the c7 has more weight and have they even released transmission gearing yet?
a c5z with that tire or better still has a shot if the driver can out brake and out drive the c7. even stock vs stock. the c7 has more weight and have they even released transmission gearing yet?
Instructor
Joined: Jan 2013
Posts: 113
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From: Round Rock Texas
According to LG Motorsports, the stock 08+ C6 rated at 430bhp and dynoed at about 385whp stick and 375 A6. Assuming the same driveline loss and that power is rated appropriately, that would mean the C7 stock would dyno at about 407whp by my calculator.
Drifting
Joined: Apr 2008
Posts: 1,464
Likes: 32
From: Ocala FL
My '04 Z dyno'd at 359whp / 347 tq bone stock.
So, that's around an 11.5% drive loss from 405hp.
My car now has 392whp. Assuming the same drive loss my car would have 443hp crank hp.
So let's assume the C7 has the same drive loss. That would mean it would put 403whp to the ground.
So, that's around an 11.5% drive loss from 405hp.
My car now has 392whp. Assuming the same drive loss my car would have 443hp crank hp.
So let's assume the C7 has the same drive loss. That would mean it would put 403whp to the ground.
Racer
Joined: May 2007
Posts: 260
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From: Beaumont Texas
The new C7 stock will not compete on the street with any extensively modded C5Z. I blowout stock C6Z's with 427's all the time. I have AFR Heads, Headers, LSX Intake, tune, ET, etc.... 476HP RWHP... tuned by two different tuners. Plus I'm not that great a driver!!!! Just ask my last two transmissions....... So I'm installing a 2009 Z06 drive-train and I'm still half the price of the C7.......
Race Director
Joined: Jan 2008
Posts: 16,028
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From: oregon
i'm curious what the setup will be like. if you look at gm, by the time 2001 hit the car was a LOT better than 1997. by 2004 the z06 shocks had been refined, clutch had been improved, all sorts of little things
then 2005 came. the c6 base wasn't anywhere near as fast as the c5z around a course and the suspension was off. car had more oversteer than it should have. killed the battery if you didn't leave it in reverse and ran the top gear test track one tenth slower than a stock evo8 which had over 100 fewer hp. skip ahead to the zr1 test and the car is a lot more dialed despite more hp you can just tell the setup has improved with how the car makes use of its power. better tires, better spring rates, better shocks and way better brakes. the 2005 test was almost painful to watch
now it's 2014. will the c7 be the same untuned, unrefined car that GM has released for the past two generations?
i sure have no reason to believe it will be dialed at year one
then 2005 came. the c6 base wasn't anywhere near as fast as the c5z around a course and the suspension was off. car had more oversteer than it should have. killed the battery if you didn't leave it in reverse and ran the top gear test track one tenth slower than a stock evo8 which had over 100 fewer hp. skip ahead to the zr1 test and the car is a lot more dialed despite more hp you can just tell the setup has improved with how the car makes use of its power. better tires, better spring rates, better shocks and way better brakes. the 2005 test was almost painful to watch
now it's 2014. will the c7 be the same untuned, unrefined car that GM has released for the past two generations?
i sure have no reason to believe it will be dialed at year one
Advanced
Joined: Apr 2013
Posts: 63
Likes: 0
From: Studio City California
i'm curious what the setup will be like. if you look at gm, by the time 2001 hit the car was a LOT better than 1997. by 2004 the z06 shocks had been refined, clutch had been improved, all sorts of little things
then 2005 came. the c6 base wasn't anywhere near as fast as the c5z around a course and the suspension was off. car had more oversteer than it should have. killed the battery if you didn't leave it in reverse and ran the top gear test track one tenth slower than a stock evo8 which had over 100 fewer hp. skip ahead to the zr1 test and the car is a lot more dialed despite more hp you can just tell the setup has improved with how the car makes use of its power. better tires, better spring rates, better shocks and way better brakes. the 2005 test was almost painful to watch
now it's 2014. will the c7 be the same untuned, unrefined car that GM has released for the past two generations?
i sure have no reason to believe it will be dialed at year one
then 2005 came. the c6 base wasn't anywhere near as fast as the c5z around a course and the suspension was off. car had more oversteer than it should have. killed the battery if you didn't leave it in reverse and ran the top gear test track one tenth slower than a stock evo8 which had over 100 fewer hp. skip ahead to the zr1 test and the car is a lot more dialed despite more hp you can just tell the setup has improved with how the car makes use of its power. better tires, better spring rates, better shocks and way better brakes. the 2005 test was almost painful to watch
now it's 2014. will the c7 be the same untuned, unrefined car that GM has released for the past two generations?
i sure have no reason to believe it will be dialed at year one