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2023 Corvette Z06

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Old Oct 9, 2022 | 08:09 AM
  #46  
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Originally Posted by MPalmer
Yeah, they really put a lot of work into that. So well made.
Still typical Chevy build quality and fit/finish.

Matt Farah stated on his podcast that body panels were misaligned and not to expect Porsche level attention to detail.
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Old Oct 10, 2022 | 05:52 AM
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unfortunately the release of this car is going to be tarnished by insane dealer markups and/or 2+ year waitlists
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Old Oct 10, 2022 | 06:06 AM
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Originally Posted by 4TehNguyen
unfortunately the release of this car is going to be tarnished by insane dealer markups and/or 2+ year waitlists
Unfortunately, the wait list is even longer than that. If you didn't have your deposit in last year, it is already too late to get one before production ends in 2028 or whatever.
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Old Oct 12, 2022 | 01:41 AM
  #49  
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Originally Posted by mmarshall
BFD. A misleading article. Torque is the REAL figure, not HP. What this article doesn't say is that the Blackwing V8 offers 659 ft.lbs of torque vs. 460 for the Z06. Yes, like it or not, supercharging DOES make a difference.
.
But it only revved to 6000RPM, lower redline than the actual pushrod Chevy engines. I think many customers will find the lack of forced induction in this Z06 quite appealing.

My die hard Porsche fanboy friend even gave this 'Vette credit and I didn't expect him to lol,
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Old Oct 12, 2022 | 05:01 AM
  #50  
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Originally Posted by mmarshall
BFD. A misleading article. Torque is the REAL figure, not HP. What this article doesn't say is that the Blackwing V8 offers 659 ft.lbs of torque vs. 460 for the Z06. Yes, like it or not, supercharging DOES make a difference.

Of course, to be fair, the Z06 is smaller and lighter than the Caddy, and doesn't need as much power to turn in the same performance.
It does make a difference, but doesn't come close to telling the whole story. The Z06 is made for road courses, not drag racing, but let's compare 0-60 times vs the prior generation, which has the same exact supercharged LT4 engine as the Blackwing:

C7 Z06 (650 lbft): 2.95
C8 Z06 (460 lbft): 2.20

That's a massive difference, in favor of the car with 190 lbft less torque. But it's a different architecture, you say, and putting the engine at the back increases traction! Ok, let's compare just C8s to eliminate that:

Stock C8 Z51 (470 lbft): 2.90
Procharged C8 Z51 (575 lbft): 2.60
C8 Z06 (460 lbft): 2.20

Again, this is not even where the Z06 truly shines. It's most at home on a road coarse, with that engine screaming at 8,000 rpms. But it still completely embarrasses comparable cars at the dragstrip that have dramatically more torque.
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Old Oct 12, 2022 | 05:12 AM
  #51  
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I think the 4 year wait list confirms there are MANY Americans not done with V8s yet.
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Old Oct 12, 2022 | 08:25 AM
  #52  
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Originally Posted by geko29
It does make a difference, but doesn't come close to telling the whole story. The Z06 is made for road courses, not drag racing, but let's compare 0-60 times vs the prior generation, which has the same exact supercharged LT4 engine as the Blackwing:

C7 Z06 (650 lbft): 2.95
C8 Z06 (460 lbft): 2.20

That's a massive difference, in favor of the car with 190 lbft less torque. But it's a different architecture, you say, and putting the engine at the back increases traction! Ok, let's compare just C8s to eliminate that:

Stock C8 Z51 (470 lbft): 2.90
Procharged C8 Z51 (575 lbft): 2.60
C8 Z06 (460 lbft): 2.20

Again, this is not even where the Z06 truly shines. It's most at home on a road coarse, with that engine screaming at 8,000 rpms. But it still completely embarrasses comparable cars at the dragstrip that have dramatically more torque.
Engine TQ doesn't matter, wheel TQ does and if you have enough RPM and overall gearing it will more than compensate for less engine TQ. The Z06 has 2400 more rpm to play with, way more final drive, and much better average wheel TQ than the old one
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Old Oct 12, 2022 | 01:28 PM
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its going to feel more sluggish around town in regular driving compared to the other low end torquer engines, have to build revs to get the power
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Old Oct 12, 2022 | 04:25 PM
  #54  
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Originally Posted by 4TehNguyen
its going to feel more sluggish around town in regular driving compared to the other low end torquer engines, have to build revs to get the power
I disagree - this is a large displacement V8 and it looks like there is sufficient torque down low not just at the higher revs like in most flat plane crank V8s.
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Old Oct 12, 2022 | 04:50 PM
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Originally Posted by 4TehNguyen
its going to feel more sluggish around town in regular driving compared to the other low end torquer engines, have to build revs to get the power
This will never feel sluggish, lol. This engine is a gift from the automotive gods.
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Old Oct 12, 2022 | 07:03 PM
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460 ft.lbs. of torque? That is exactly what the top-line big-block 427 Corvette engine of the late 60s, with the triple-deuce carb-setup, was putting out. Of course, I will concede that today's Corvette is smaller/ lighter, more efficient, more responsive, and, in a drag race, will probably blow the doors off the 1969, which itself did 0-60 in a little over 5 seconds....not to mention handling circles around it.

Last edited by mmarshall; Oct 12, 2022 at 07:26 PM.
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Old Oct 12, 2022 | 07:18 PM
  #57  
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No, it’s not the same HP measurement from then vs now. SAE gross was dropped and net used in 1972

Edit. Also the new one is 100-200 lbs heavier than the old one…

https://www.hagerty.com/media/archived/horsepower/
Forty years after the end of the “classic” muscle car era, there is still some confusion over horsepower ratings, especially how they relate to today’s cars. Let’s try to clear it up.

Prior to 1972, American carmakers used the SAE (Society of Automotive Engineers) “gross” measurement of horsepower. Gross meant the figure was taken from an engine running on a test stand, with no air cleaner assembly, accessories or exhaust system connected.

By 1971, carmakers began reducing compression in many engines in order to meet upcoming emissions requirements and to use unleaded fuel. General Motors and Chrysler began advertising both gross and SAE net figures in 1971, derived from an engine tested with air cleaner assembly, accessories or exhaust system connected.

The net ratings, which were applied across the board for 1972, must have been a shock to some customers. Suddenly, muscle cars appeared to lose 100 hp or more.

For example, the Corvette’s optional LT-1 350 cu. in. small block V-8 had 370 gross hp in 1970 (with 11:1 compression), then a 330 hp gross rating (with 9:1 compression) for 1971-1972 with a 255 hp net rating. The mighty Chrysler 426 cu. in. Hemi kept its high compression and 425 hp gross rating for 1971 and showed 350 net hp.

Jim Campisano, editorial director of Muscle Mustangs & Fast Fords and Super Chevymagazines, has revisited the classic muscle car horsepower topic numerous times over the years. The magazines have compared old and new muscle cars and have also put classic models on a chassis dynamometer to record rear-wheel horsepower.

“Rear wheel horsepower was at least 30 percent lower than the reported gross figure, in some cases even more,” Campisano said.

​​​​​​…..
article goes on and has some great examples.

Last edited by DaveGS4; Oct 12, 2022 at 07:27 PM.
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Old Oct 12, 2022 | 07:25 PM
  #58  
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Originally Posted by DaveGS4
No, it’s not the same HP measurement from then vs now.
You are correct about a difference in HP ratings (net vs. Gross)...but I was referring to torque, not HP. I may be wrong but I don't think that torque-figures were necessarily affected by the 1971 shift from Gross to Net HP.

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Old Oct 13, 2022 | 04:20 AM
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Originally Posted by RNM GS3
I disagree - this is a large displacement V8 and it looks like there is sufficient torque down low not just at the higher revs like in most flat plane crank V8s.
Correct. It builds revs incredibly quickly, and is already making 400 lbft at 2800 rpm (35% of redline). If that's insufficient for non-aggressive casual driving around town, how does something like a Corolla (which doesn't make its 126 lbft until 4000--62% of redline) even back out of a parking spot?
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Old Oct 13, 2022 | 07:19 AM
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Originally Posted by mmarshall
You are correct about a difference in HP ratings (net vs. Gross)...but I was referring to torque, not HP. I may be wrong but I don't think that torque-figures were necessarily affected by the 1971 shift from Gross to Net HP.
Sorry but you are still incorrect, torque figures were similarly affected by the change from SAE Gross to Net as HP.

In 1971 both GM and MOPAR often published both gross and net figures for the same engines in preparation for the shift in the measurement standard, note the torque differences on the exact same motors when measured for SAE gross vs net. Couple of well known motor examples from a thread where a guy gathered the many of the specs from the manufacture themselves.
https://www.gminsidenews.com/threads...ngines.102853/

Mopar 440 CID V8
gross hp/torque 370/480
net hp/torque 305/400

Pontiac 400 CID V8

gross hp/torque 300/400
net hp/torque 250/340


sorry i contributed to the continued off topic, let’s get back to the 2023 model!
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