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Old 02-07-2013, 05:50 PM
  #41  
Charlie M
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Originally Posted by texvette2
The horsepower race is on its way to the 60's. Many of the people are incapable of
driving a 200 hp v6 safely. You drop them behind the wheel of a flimsy C7 and
ditches, T-poles, curbs, etc will flooding the insurance desks. Its just a matter of
time till the rates will kill these cars again. Just because the checkbook allows
the purchase does not mean the brain matches.
Not at all. I find my C6 with the traction control is much easer to drive with 436 hp than my C3 with 350 hp. Embrace the electronics. Even my daughters car is a mess to drive with the traction control turned off. Launch controls is neat on it though. But I can tell you if I had either car when I was 16-18 years old I would have destroyed them.
Old 02-07-2013, 05:52 PM
  #42  
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Originally Posted by JoesC5
Odd that the insurance premium on my C6 Z06 with a 505 horsepower V8 is only $47 a month. Must not be too many people buying them that can't drive them, or else State Farm is selling me insurance way below their cost. LOL
Mine is less than the SUV. I don't ask I just pay just incase it is a mistake.
Old 02-07-2013, 08:43 PM
  #43  
RT2SJB
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Did anyone find any "Official" HP information?
Old 02-07-2013, 08:56 PM
  #44  
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Originally Posted by DRC
You're probably right. But, I find it interesting that the Kerbeck website (N.J.) has about 130 2013 Vettes to sell, and not one Z06. Criswell Corvette has a ton of Vetts to sell and I can see only 2 Z06's listed.

Who would pump out 70k + for a 2013 Z06 if the base C7 is almost a match performance wise? Where did they all go, did GM back off on 2013 Z06 production a while ago?

If the C7 base car is really somehow 450 / 450 at the rear wheels I would be shocked, and if true the poser moaner posters here will s*it in their pants (diapers).
Actually, Kerbeck has carried very little Z06 inventory starting in 2010 when the GS which copies the Z06 wide-body style was introduced. For example, my 2010 Z06 is one of only about 550 made in '10. As an aside, my '10, with only a Halltech intake, repeated tested on a continually calibrated race shop dyno at 473-475 SAE rearwheel.

Now, much, much more emission legal ponies...
Sorry, but the basis for your theory is incorrect.
Old 02-08-2013, 02:22 AM
  #45  
RocketGuy3
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Originally Posted by troller399
ok...contact patch is meaningless...TYHO...
Originally Posted by JoesC5
450bhp x 88%(manual w/12% loss)) = 396rwhp

450bhp x 85%(auto w/15%) = 383rwhp.

13hp is a lot. People spend lots of money to gain 13hp at the rear wheels.
So, you believe that a Michelin Pilot Super Sport ZP that is 285mm wide will have the same adhesion as a Michelin pilot Super Sport ZP that is 325mm wide, both being of identical design(compound, tread design, etc).[/QUOTE]
(replying to both of you)

No, that's not at all what I said... I said that ultimately all that matters is the frictional force that the tire provides on the road. Obviously contact patch/tire width is one of many factors that influence that frictional force, but if the tire compound is improved enough and chassis is improved, etc, then a size of 285 on the C7 may be as good as (or better than) certain wider tires on the C6. That's certainly what GM is claiming is the case.

Obviously, though, with all else being equal, a tire with a 325 mm width will typically have better grip than a tire with a 285 mm width. I never denied that.


Originally Posted by JoesC5
450bhp x 88%(manual w/12% loss)) = 396rwhp

450bhp x 85%(auto w/15%) = 383rwhp.

13hp is a lot. People spend lots of money to gain 13hp at the rear wheels.
Where did you get those numbers from? Are those the numbers for the C6 that you're assuming will carry over? Modern transmissions I'm aware of don't typically have that significant of a difference in drivetrain losses.
Old 02-08-2013, 08:23 AM
  #46  
DRC
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Originally Posted by OJCrush08
Actually, Kerbeck has carried very little Z06 inventory starting in 2010 when the GS which copies the Z06 wide-body style was introduced. For example, my 2010 Z06 is one of only about 550 made in '10. As an aside, my '10, with only a Halltech intake, repeated tested on a continually calibrated race shop dyno at 473-475 SAE rearwheel.

Now, much, much more emission legal ponies...
Sorry, but the basis for your theory is incorrect.
Sorry, since I'm from Jersey that makes my theory basis correct, even though my result may be wrong.

Enjoy your Z06!
Old 02-08-2013, 08:49 AM
  #47  
Kappa
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Originally Posted by JoesC5
Ask the Z06 owners that have replaced their Goodyear Supercar ties with the Michelin Pilot Super Sports, both being the same size, how much better the Michelin's are.
I've heard many a great review on this site.

Do you believe that a C7 with 285 MPSS will have identical times as a 325 MPSS equipped C6Z06 or a 325 MPSS equipped C7?
Never said that and I don't think that's what GM was aiming for. I was comparing the PSS to other 325 tires that appeared on the C6 ie F1 and PS2. I believe that they were aiming to match or beat the performance of those setups with skinnier tires. Should be achievable IMO.

Last edited by Kappa; 02-08-2013 at 08:52 AM.
Old 02-08-2013, 09:09 AM
  #48  
Bill17601
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I have a Dyno tuned stock LS3 in my C5. The rear wheel HP was 401. There is a lot to be said about the net compared to the gross. The real test is when you stick your foot down on the loud pedal.
Old 02-08-2013, 10:13 AM
  #49  
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Originally Posted by RT2SJB
a new 6.2 liter (376 cubic inch) LT1 V-8 engine that pumps out 450 horsepower and 450 lb.-ft. of torque to the rear wheels

I found the information above at the Chicago Auto Show web-site. 400 HP to the wheels = what at the flywheel?
They mean that the car is rwd, not that power is measured at the wheels. GM will use SAE ratings at the crank. Most of those things are written for the general public that doesn't know about chassis dynos.
Old 02-08-2013, 03:29 PM
  #50  
sam90lx
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[QUOTE=Kappa;1583066311]I've heard many a great review on this site.




Pilot SS's kick ***! Pulled my GY's off at 11k miles....wish I would have done it sooner.

Props to GM for the tire switch.
Old 02-08-2013, 03:40 PM
  #51  
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Originally Posted by CPhelps
They mean that the car is rwd, not that power is measured at the wheels. GM will use SAE ratings at the crank. Most of those things are written for the general public that doesn't know about chassis dynos.
It's not really up for interpretation. The way it is written implies that the car makes 450 rwhp. In other words 450 hp to the rear wheels.

Whether they are right or wrong remains to be seen.
Old 02-08-2013, 05:33 PM
  #52  
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Originally Posted by Aozora
It's not really up for interpretation. The way it is written implies that the car makes 450 rwhp. In other words 450 hp to the rear wheels.

Whether they are right or wrong remains to be seen.
Their wrong! The big 3 as well as most rate hp and tq to the crank/flywheel, not to the wheels.

The C6 Z06 is rated at 505, not to the wheels though.
Old 02-08-2013, 06:03 PM
  #53  
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Originally Posted by Aozora
It's not really up for interpretation. The way it is written implies that the car makes 450 rwhp. In other words 450 hp to the rear wheels.

Whether they are right or wrong remains to be seen.
An interesting observation. The only problem is no car company gives their rear wheel horsepower. Never did. There are to many variables. Transmission loss, losses from power steering, air conditioning demand from the charging system etc. that would be historically not so much currently. Why would you expect GM to do what no other manufacture has ever one? Not even the exotic world does that. I may have missed a brand and if I did please correct me and. give me your source.

Thanks
Old 02-08-2013, 07:09 PM
  #54  
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Originally Posted by Bill17601
An interesting observation. The only problem is no car company gives their rear wheel horsepower. Never did. There are to many variables. Transmission loss, losses from power steering, air conditioning demand from the charging system etc. that would be historically not so much currently. Why would you expect GM to do what no other manufacture has ever one? Not even the exotic world does that. I may have missed a brand and if I did please correct me and. give me your source.

Thanks
Any engine driven accessories such as the water pump, the alternator, the power steering pump and the A/C compressor are mounted on the engine, and functioning when the pull is done. The horsepower at the flywheel takes in the loads those items place on the engine. The driveline is not connected to the engine for the dyno pull to see what the bhp is of the engine.
Old 02-08-2013, 07:18 PM
  #55  
speedlink
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Guys, everyone take a deep breath. There are no official #'s yet.

Let's see what the future holds. GM's statement's have been 450HP at least. We can all speculate what that means. We will find out soon enough.
Old 02-08-2013, 07:31 PM
  #56  
455230
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Originally Posted by Aozora
It's not really up for interpretation. The way it is written implies that the car makes 450 rwhp. In other words 450 hp to the rear wheels.

Whether they are right or wrong remains to be seen.
It isnt up for interpretation....No oem rates engine power at the wheels...."to the wheels" isnt the same as "at the wheels".

It isnt 450 rwhp.
Old 02-08-2013, 11:34 PM
  #57  
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Originally Posted by Bill17601
An interesting observation. The only problem is no car company gives their rear wheel horsepower. Never did. There are to many variables. Transmission loss, losses from power steering, air conditioning demand from the charging system etc. that would be historically not so much currently. Why would you expect GM to do what no other manufacture has ever one? Not even the exotic world does that. I may have missed a brand and if I did please correct me and. give me your source.

Thanks
This was not from me, or any "source" or even from GM that I know of, it was posted on the Chicago auto show website."

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Old 02-08-2013, 11:37 PM
  #58  
Aozora
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Originally Posted by 455230
It isnt up for interpretation....No oem rates engine power at the wheels...."to the wheels" isnt the same as "at the wheels".

It isnt 450 rwhp.
Wait, but isn't the c7 an "enemy of the same"?
Old 02-09-2013, 01:37 AM
  #59  
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Originally Posted by GOLD72
Sounds like a miss-print. GM is targeting 450/450 at the flywheel and that is all they are saying for the moment. SAE certification tests will likely be next month so we will have to wait until after that for the final numbers.
Woot Woot for real next month? Been drinkin so my posts will be less contributive than usual
Old 02-09-2013, 04:26 PM
  #60  
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Originally Posted by speedlink
Guys, everyone take a deep breath. There are no official #'s yet.

Let's see what the future holds. GM's statement's have been 450HP at least. We can all speculate what that means. We will find out soon enough.



I would hope that GM has low balled the numbers so that we can all be pleasantly surprised when the offical numbers come out


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