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Topic: Sporty Cars

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OrangeAfroMan

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Re: Sporty Cars
« Reply #490 on: May 17, 2020, 01:19:21 AM »
rumored to be a 32-valve flat-plane-crank V-8,  5.5 liter
This made me do the Tim Allen grunt thing from Home Improvement.
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Cincydawg

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Re: Sporty Cars
« Reply #491 on: May 17, 2020, 08:22:05 AM »
Surely it has dual overhead cams.  Any self-respecting supercar must have that at a minimum.

I can't believe how long and far Chevy has stretched the capabilities of overhead-valve V-8s.
Yes, indeed. the pushrod engine does have some advantages, but this Z06 will go DOHC, and flat plane, and a few other things.

The current 6.2 L engine in the regular Vette has variable valve timing, with pushrods.

FearlessF

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Re: Sporty Cars
« Reply #492 on: May 29, 2020, 08:46:36 PM »
Some like Chevy Dude's YouTube videos, some do not, but I ran across his latest video this morning and found it quite interesting. I like data and this video provided lots of it. Specifically, he appears to review 3000 total C8 orders (not all orders) in the GM system and shared the details of 2539 of the C8 orders which had VINs assigned. In most cases it appears the stats quoted were for the 2539 orders with VINs assigned and other times he may have been referring to all 3000 orders. In order to visualize the data, I found I needed to put the stats in a spreadsheet, add some totals/percentages and figured I would share it with my friends on MECF. I tried to be as accurate as I could, but it is quite likely I have an error or two in my numbers. That said, the results were still interesting to me. I assume some of the order stats are skewed based on early constraints, etc, and and not necessarily representative of what options everyone will choose in 2020.

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CWSooner

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Re: Sporty Cars
« Reply #493 on: May 30, 2020, 08:54:36 PM »
Somebody did a lot of work there.  Was that you, Fearless?
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FearlessF

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Re: Sporty Cars
« Reply #494 on: May 30, 2020, 08:57:38 PM »
hell no

computers
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Cincydawg

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Re: Sporty Cars
« Reply #495 on: May 31, 2020, 08:37:09 AM »
I understand they make zero dollars on the 1LT version, I don't know if they can break even on the higher trim levels or not.


FearlessF

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Re: Sporty Cars
« Reply #496 on: May 31, 2020, 08:38:27 AM »
I would hope there's a few dollars profit at $100,000
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Cincydawg

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Re: Sporty Cars
« Reply #497 on: May 31, 2020, 08:42:34 AM »
The dealers would make out obviously, I don't know about GM.  They are doing some odd things these days in my view.

Cincydawg

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Re: Sporty Cars
« Reply #498 on: May 31, 2020, 09:19:26 AM »
https://www.roadandtrack.com/new-cars/a29821409/why-c8-corvette-is-so-quick/?src=socialflowFBRAT&utm_medium=social-media&utm_source=facebook&utm_campaign=socialflowR%26T&fbclid=IwAR1j1sU4V4klAotxJ81aTIRRZxD0EQsRozlr3itWQw8_xINHkrQ-_usVeks

Explanation as to why the C8 is so much faster to 60 than the C7 with the same drive train level (Z51).  The rear engine is of course the care part of that.

It's interesting how much emphasis is placed on 0-60 times (0-62 in Europe).  When I was a kid, almost before cars were invented, the standard speed limit on a highway was 60 mph almost everywhere.  Interstates in the south were just being built, I rarely experienced one until we moved to ATL.  You drove mostly on two lane roads and cursed at trucks slowing you down on hills.

FearlessF

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Re: Sporty Cars
« Reply #499 on: May 31, 2020, 10:00:13 PM »
well, since it's not lawful to drive faster than 60mph...........

it's who gets to 60 faster that wins the race
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Cincydawg

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Re: Sporty Cars
« Reply #500 on: June 01, 2020, 09:08:11 AM »
Yeah, it's a traditional figure, used for many decades.  I don't have any objection to it.  Hardly anyone in real life stands on it for a quarter mile on a highway from a dead stop.  It gives one an idea of how a car accelerates in relative terms.

I think the car makers go to extra lengths at times to ensure their 0-60 time is "respectable" even if they would do it differently otherwise, things like ensuring the car doesn't shirt to 3rd gear before it hits 60 and programming launch control with a lot of effort and putting sticky tires on the drive wheels.

The dual clutch transmissions don't really care about that of course.


betarhoalphadelta

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Re: Sporty Cars
« Reply #501 on: June 01, 2020, 09:24:40 AM »
Yeah, one of my measures of car performance is very similar to 0-60... It's basically "can this thing easily accelerate to freeway speed from a dead stop on a metered on-ramp?" Because that's where I need the performance. Beyond that, I think 60-80 time is a good measure, because if you need passing power while battling aerodynamic forces, that's a good measure of performance.

But I also think car mags and buyers converge on 0-60 or 1/4 mile times because they're so easy to understand and easy to compare head-to-head. 

I'd think skidpad numbers, measurements of times through a slalom, etc probably better measure a car's "fun factor", but it's a lot easier to just look at how fast it goes in a straight line.

Cincydawg

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Re: Sporty Cars
« Reply #502 on: June 01, 2020, 09:33:55 AM »
I wonder if one could make a better sporty car, in some sense, by ignoring all of these numbers and just focusing on making a car that is great to drive.  It would have good numbers of course, but would just feel better.

Let the numbers play out without worry.  

On occasion of course, I'll get on it a bit in the GTI in say second gear on an entrance ramp or whatever, and I find I'm going over 60 so fast that I need to let off, and that isn't a particularly quick car.  I don't really have much of a chance to stay on it for more than 2-3 seconds unless I start from a standstill, and that is rare.

The other thing I value in a car with a manual is the ability to climb Interstate grades without downshifting, low end torque.




FearlessF

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Re: Sporty Cars
« Reply #503 on: June 01, 2020, 11:17:35 AM »
low end torque is great for many things, but rarely considered sporty or fun

does save on the transmission
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