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Something is not right, and we know the C6 Z06 will do 198 MPH right out o the dealer's showroom. It took the C6 ZR1 with it's 638 HP and a .35 Cd to run 7 miles per hour faster than the C6 Z06.
My C6 Z06 sure doesn't nose over at 150 MPH and it only takes 17.4 seconds to get to 150 MPH.. It pulls hard up to 160 MPH when it's time to shift into 5th gear. Then it noses over due to terrible .74:1 5th gear gearing. Takes forever to get to 198 MPH, but it gets there in 5th gear. Sure wish that GM had installed the ,82:1 5th gear from the C6 ZR1 into the C6 Z06.
What’s the frontal area difference of C8 vs C6Z? Also rwhp difference and DA would affect top speed besides SAE crank hp and coefficient of drag. Rolling resistance is greater on C6Z, always wondered if one would have hit 200 with just a swap to narrower base wheels/tires.
Something is not right, and we know the C6 Z06 will do 198 MPH right out o the dealer's showroom. It took the C6 ZR1 with it's 638 HP and a .35 Cd to run 7 miles per hour faster than the C6 Z06.
My C6 Z06 sure doesn't nose over at 150 MPH and it only takes 17.4 seconds to get to 150 MPH.. It pulls hard up to 160 MPH when it's time to shift into 5th gear. Then it noses over due to terrible .74:1 5th gear gearing. Takes forever to get to 198 MPH, but it gets there in 5th gear. Sure wish that GM had installed the ,82:1 5th gear from the C6 ZR1 into the C6 Z06.
10 horsepower, 7000 rpm versus 6500 redline, the sae certification info I have seen on the LT2 indicates no difference for the NPP both the same 490 horse in the dyno results, so its a 15 horse difference, the C6 Z06 was around 3200 lbs versus 3535 for the C8, I can see why the Z06 was 5 mph faster. Also there were earlier top speed #s of 194 mph for the C8. And what is the torque curve of the 427 versus the LT2, both 470 lb ft of torque but possibly the 427 comes in sooner and stays higher longer.
The most interesting part to me is not the drag numbers but how the C8Z51 measures up to the C7 family at the road course. Nothing about this yet, except Tadge I believe said the Z51 is faster at any track than a C7Z. We'll see, but the new car must have unbelievable balance and traction for Tadge to make that claim. It would be nice if Chevy published its own road course numbers for several tracks with both cars, but I can understand why they do not.
Link please. I would be utterly shocked if the C8 base model comes close to a C7 Z06, let alone a C7 ZR1 at any track. I have never heard anything from Tadge saying this.
Link please. I would be utterly shocked if the C8 base model comes close to a C7 Z06, let alone a C7 ZR1 at any track. I have never heard anything from Tadge saying this.
Just pick up the new issue of Car and Driver. Tadge said it in their interview of him and Alex McDonald. It was the last quote.
Last edited by dcbingaman; Aug 28, 2019 at 11:26 PM.
Agreed! Here in Kalifornication...you get caught going over 100mph, game over! Your Vette is Impounded on a flat bed (if your lucky it’s a flat bed). No eye hooks in the front or rear locations because your in hand cuffs sitting in the back of the cruiser and the popo couldn’t care less. Your new C8 is dragged onto the flatbed scraping either your front splitter or rear facia.
If if none of that got your attention, try this. Whenever I think of those speeds, I think of catastrophic tire failure. When these tire speed ratings are publish, it’s under optimum conditions with no tire flaws. If you have tire failure at that speed, you’d have to be a pro to recover, maybe not even then. Then it would be the cruise back seat you’d be in.
We only have so many roads and this country is getting more crowded by the day.
And because of that, we have more LEOs than ever before.
It gets harder and harder to have fun with speed...
Originally Posted by dcbingaman
Just pick up the new issue of Car and Driver. Tadge said it in their interview of him and Alex McDonald. It was the last quote.
Firstly, I am an ME fan.
However, 150hp is too big a gap to bridge, even for an ME.
As far as I am concerned, Tadge is anything except a reliable source when he is trying to sell Corvettes.
Sorry, but I have seen his Dog & Pony Show before...
Just pick up the new issue of Car and Driver. Tadge said it in their interview of him and Alex McDonald. It was the last quote.
Man lol... that's some wild imagination there...
so you think the "current car" means all C7s? Im gonna go out on a limb and say he's referring to a C7 Z51... thats about the extent of it. Because if there was the slightest chance it was faster than even say a C7 GS? The master of words would have built that in there.... he didn't... and the question was a softball. Because look at the one above it. About rear steering... rear steering is huge... look at the aventador svj and porsche to name a couple. Its just cost and it when it was designed it wasn't built in... the C9 will have it rest assured. Showing up late is better than not showing up at all. But it does carry disadvantages.. being 1 step back in evolution being the issue here. Gotta crawl before you walk and walk (C8 Z51) before you run (C8 Z06)..
so you think the "current car" means all C7s? Im gonna go out on a limb and say he's referring to a C7 Z51... thats about the extent of it. Because if there was the slightest chance it was faster than even say a C7 GS? The master of words would have built that in there.... he didn't... and the question was a softball. Because look at the one above it. About rear steering... rear steering is huge... look at the aventador svj and porsche to name a couple. Its just cost and it when it was designed it wasn't built in... the C9 will have it rest assured. Showing up late is better than not showing up at all. But it does carry disadvantages.. being 1 step back in evolution being the issue here. Gotta crawl before you walk and walk (C8 Z51) before you run (C8 Z06)..
No imagination required. He said the current car. That, in my mind includes the Z06.
The Z06 is traction limited in most situations unless you are moving in a straight line faster than 100 mph. That is Ed Piatek's word not mine. The true of the matter is, in many cases on the track, the traction control is pulling so much spark that the blower is just adding noise but not much power to the rear wheels. That is why they went to the mid-engine and the DCT.
10 horsepower, 7000 rpm versus 6500 redline, the sae certification info I have seen on the LT2 indicates no difference for the NPP both the same 490 horse in the dyno results, so its a 15 horse difference, the C6 Z06 was around 3200 lbs versus 3535 for the C8, I can see why the Z06 was 5 mph faster. Also there were earlier top speed #s of 194 mph for the C8. And what is the torque curve of the 427 versus the LT2, both 470 lb ft of torque but possibly the 427 comes in sooner and stays higher longer.
Hp is just a derivative of torque, so if it makes more hp then it makes more torque. The LT1 made the same torque as the LS7 up to 4K Rpm iirc because of the higher compression and earlier IVC from vct/smaller intake lobe duration. The LT2 makes more Hp than the LT1 therefore past peak torque which is close to where hp/torque cross it is making more hp. The 7k Rpm has no relevance on top speed because it was achieved at 6300 where it made peak hp and became drag limited in 5th gear.
Because you can....but yeah 184 MPH is good enough...and it’s 194 mph top speed for the base model C8 and that’s one reason why this leak document is BS...there are so many wrong things with it. We need to wait for the official data!
I am thinking the base C8 will do 0 to 60 in 2.9 secs now and the z51 in 2.7 secs..
We will see
No way the non-Z51 does 0-60 in less than 3 seconds. If this was the case, Chevy folks would not have said that you need the Z-51 to reach 60 in less than 3 seconds.
No imagination required. He said the current car. That, in my mind includes the Z06.
The Z06 is traction limited in most situations unless you are moving in a straight line faster than 100 mph. That is Ed Piatek's word not mine. The true of the matter is, in many cases on the track, the traction control is pulling so much spark that the blower is just adding noise but not much power to the rear wheels. That is why they went to the mid-engine and the DCT.
Comparing apples to apples he could have been talking about the current Stingray...
No imagination required. He said the current car. That, in my mind includes the Z06.
The Z06 is traction limited in most situations unless you are moving in a straight line faster than 100 mph. That is Ed Piatek's word not mine. The true of the matter is, in many cases on the track, the traction control is pulling so much spark that the blower is just adding noise but not much power to the rear wheels. That is why they went to the mid-engine and the DCT.
Oh Krusty84, you are so wrong. I am the guy that took the pictures while the booklet was held in the engineers hand. I was being rushed and tried very hard to get as close as I could with camera so i could read it later on and aslo trying to make sure I could get all the info with multiple pics over the page contents. I went back a second time the next day because i could not see all i wanted to see in my own pictures. Different engineer same booklet i assume as he had to open it to the specs page but I could not hold the book just like the first day.
Haha... WTF ever. Not buying it.
If GM can't get their team to run spell check or fix format errors on a simple specification release.... We should all be fairly concerned about the quality of the C8.
Maybe the folks taking delivery of their new C8s ought to check and make sure Corvette isn't spelled Corvettte. Haha..
I guess we will find out soon enough. All I will say is that the lack of a large performance increase from the C7 Z51 to the C7 Z06, despite a greater than 40% increase in HP and torque is what drove GM to go mid-engine.
The C8 Z06 will undoubtably blow every previous Corvette into the weeds, and the combination of the base C8 chassis and the LT2 / DCT combination looks pretty ferocious on its own. What you have in the BASE C8 is the C6 Z06 LS7 engine performance in a better chassis with a MUCH better transmission. I would not discount how good this package will be on the track. Competitor mid-engine cars with DCT's have shown superior track performance to the C7 Z06 at much lower HP levels than provided by the LT4.
Personally, I would like to see the LT4 in the C8, but the rumors are that the C8 Z06 will be powered by a 5.5L DOHC engine. My fear is it will be much more expensive than the current C7 Z06.
Last edited by dcbingaman; Aug 29, 2019 at 01:44 AM.
No way the non-Z51 does 0-60 in less than 3 seconds. If this was the case, Chevy folks would not have said that you need the Z-51 to reach 60 in less than 3 seconds.
Agreed, who says the brochure can’t use the better 0-60mph, better 1/4 mile or better top speed of the same model with a different option package for marketing?
108ft stopping distance from 60 mph for c8 z51 107 ft stopping distance from 60 mph for the c7 z51
both on gm test surfaces
just a heads up
Is anyone else bothered by the fact that much of the discussion here is based on 5-year-old documents and testing for the C7 and preliminary, unofficial, unedited documents plus not yet finalized mechanical specs for the C8 being “shared” by a couple of Chevy employees at Carlisle or otherwise leaked on social media? It is absolutely amazing to me that you think, for example, that you can draw a conclusion that a 1 percent difference in braking tests 5 years apart (107 vs. 108 ft.) is meaningful or reliable - or that the C8 will totally outrun a C7 anything at any track in the universe. If you are making purchase decisions for a $60-80K vehicle based on what you’re reading here, you may be severely disappointed when you get your car.
The only numbers that matter are the ones that compare all the subject vehicles at the same time, on the same track, with the same driver. Anything else is suspicious, blue sky and complete BS.
