Author
Topic: Weather, Climate, Environment, and Energy
(Read 531340 times)

FearlessF · « **Reply #1890 on:** December 13, 2019, 08:27:10 PM »

and since Brembo will make brakes for anyone with $$$

Cincydawg · « **Reply #1891 on:** December 13, 2019, 08:30:46 PM »

Brembo had a guy at the Caddy track sessions I attended in Austin. He clearly said they were tire limited, the could stop anything. The CTS-V uses iron rotors and he said they were fine, cheaper than ceramic, and a lot easier to redo. The Michelin guy was fascinating, to me. Those tires were everything in that car.

Well, the 640 hp was some part of it. That was pretty fun. The redid the brakes and put on new tired after every daily session.

CWSooner · « **Reply #1892 on:** December 13, 2019, 09:42:25 PM »

Quote from: Cincydawg on December 13, 2019, 08:01:45 PM

The DOHC designs today are "standard" in just about every car. That Corvette would stay with the old small block architecture is interesting. The main advantage is a lower COG. They certainly get a lot of power out of it today, 495 hp from 6.2 L. They could get more hp with DOHC, but not more torque.

The new higher level Corvettes will be interesting.

My DOHC 5.0-liter puts out 444 hp.
Torque is more important for everything other than top speed, of course.

betarhoalphadelta · « **Reply #1893 on:** December 13, 2019, 11:47:04 PM »

Quote from: CWSooner on December 13, 2019, 09:42:25 PM

Torque is more important for everything other than top speed, of course.

Exactly. If you're racing, HP is very important. Because you're staying up in the powerband 100%.

Around town, torque is key.

Cincydawg · « **Reply #1894 on:** December 14, 2019, 08:21:33 AM »

The torque curve is key, as well as the max. Horsepower = torque x 5200 RPM, in the usual units. The fatter the curve, the peppier the car will feel (until you really wring it out like an S2000). Our last car had an option of a V6 with more hp and less torque or the 2.0 L turbo with 295 ft lbs of torque but lower hp (by about 30). The 4 cylinder drove better in normal driving conditions and would accelerate from 70 mph easily without downshifting (unless you nailed it). With light or moderate throttle it simply felt faster, and was. The V6 was technically a tenth faster to 60 - on throttle on the floor of course,

As noted, EVs have very fat and broad torque "curves". They really are flat from 0 RPM up to whatever. Of course, on a track you will deplete your battery capacity at an epic rate. I wonder how long a Tesla would last being driven flat out on a track.

CWSooner · « **Reply #1895 on:** December 14, 2019, 10:58:01 AM »

There's Formula E racing, which is for open-wheel electric cars. I wonder if they change out batteries during the race.

FearlessF · « **Reply #1896 on:** December 14, 2019, 11:27:41 AM »

what do they do for exhaust noise?

betarhoalphadelta · « **Reply #1897 on:** December 14, 2019, 11:30:46 AM »

Quote from: CWSooner on December 14, 2019, 10:58:01 AM

There's Formula E racing, which is for open-wheel electric cars. I wonder if they change out batteries during the race.

Most motorcycle races are basically one tank of gas long, and don't go long enough to require pit stops for tires either. I wonder what the distance is for Formula E and if they even need more range than a single charge provides.

Cincydawg · « **Reply #1898 on:** December 14, 2019, 02:12:43 PM »

The race itself is set to 45 minutes plus one lap. Until season four, drivers made one mandatory pit stop to change cars. The two pit crew helped the driver to change seat belts and, for safety reasons, there was a minimum required time for pit stops which differed from track to track (except for the last 10 races of season four).^[12] Tyre changes, unless caused by a puncture or damage, were not permitted during the pit stop. It is normally unnecessary due to the tyres being all-weather tyre sets. In race mode the maximum power is restricted to 200 kW (268 bhp).

betarhoalphadelta · « **Reply #1899 on:** December 14, 2019, 03:38:51 PM »

Quote from: Cincydawg on December 14, 2019, 02:12:43 PM

The race itself is set to 45 minutes plus one lap. Until season four, drivers made one mandatory pit stop to change cars. The two pit crew helped the driver to change seat belts and, for safety reasons, there was a minimum required time for pit stops which differed from track to track (except for the last 10 races of season four).^[12] Tyre changes, unless caused by a puncture or damage, were not permitted during the pit stop. It is normally unnecessary due to the tyres being all-weather tyre sets. In race mode the maximum power is restricted to 200 kW (268 bhp).

Ahh, I see. So yeah, it's very similar to [most] motorcycle races. The race lengths are designed to avoid recharging.

Some motorcycle races are set for pit stops for refueling / tire changes. The AMA Superbike series has all but one of their races restricted to a length that the bikes can do on one tank of gas and one set of tires, but they also run the Daytona 200, which usually requires ~2-3 pit stops for refueling and tire changes. And of course there's also endurance racing which does the same.

Cincydawg · « **Reply #1900 on:** December 14, 2019, 04:02:55 PM »

It would be neat to have some race where only the size and weight of the vehicle was controlled (except for safety issues).

CWSooner · « **Reply #1901 on:** December 14, 2019, 06:11:12 PM »

Quote from: Cincydawg on December 14, 2019, 04:02:55 PM

It would be neat to have some race where only the size and weight of the vehicle was controlled (except for safety issues).

Would probably promote cutting-edge technology.

OTOH, it seems that gigadollars would rule and that driver skill would not be very important.

betarhoalphadelta · « **Reply #1902 on:** December 14, 2019, 06:40:49 PM »

Quote from: Cincydawg on December 14, 2019, 04:02:55 PM

It would be neat to have some race where only the size and weight of the vehicle was controlled (except for safety issues).

Quote from: CWSooner on December 14, 2019, 06:11:12 PM

Would probably promote cutting-edge technology.

OTOH, it seems that gigadollars would rule and that driver skill would not be very important.

I dunno... That's pretty much Formula 1, and driver skill is important.

But yeah, it's totally an arms race. As the old joke goes:

Q. How do you make a million dollars in auto racing?
A. Well, first you start with ten million...

CWSooner · « **Reply #1903 on:** December 14, 2019, 08:43:33 PM »

Quote from: bwarbiany on December 14, 2019, 06:40:49 PM

I dunno... That's pretty much Formula 1, and driver skill is important.

But yeah, it's totally an arms race. As the old joke goes:

Q. How do you make a million dollars in auto racing?
A. Well, first you start with ten million...

Formula One definitely consumes gigadollars, but it's regulated for a lot more than just size and weight.
Per the Font of All Wisdom and Knowledge:

Quote

Formula One cars are the fastest regulated road-course racing cars in the world, owing to very high cornering speeds achieved through the generation of large amounts of aerodynamic downforce. The cars underwent major changes in 2017, allowing wider front and rear wings, and wider tyres, resulting in peak cornering forces near 6.5 lateral g and top speeds of up to approximately 350 km/h (215 mph). As of 2019 the hybrid engines are limited in performance to a maximum of 15,000 rpm, the cars are very dependent on electronics and aerodynamics, suspension and tyres. Traction control and other driving aids have been banned since 2008.

6.5 lateral g is incredible.
I have heard the joke a little differently.
Q: How do you make a small fortune in auto racing?
A: First you start with a large fortune.

Perhaps the BEST B1G Forum anywhere, here at College Football Fan Site, CFB51!!!

The 'Old' CFN/Scout Crowd- Enjoy Civil discussion, game analytics, in depth player and coaching 'takes' and discussing topics surrounding the game. You can even have your own free board, all you have to do is ask!!!

Anyone is welcomed and encouraged to join our FREE site and to take part in our community- a community with you- the user, the fan, -and the person- will be protected from intrusive actions and with a clean place to interact.

Topic: Weather, Climate, Environment, and Energy

FearlessF

Re: Weather, Climate, and Environment

Cincydawg

Re: Weather, Climate, and Environment

CWSooner

Re: Weather, Climate, and Environment

betarhoalphadelta

Re: Weather, Climate, and Environment

Cincydawg

Re: Weather, Climate, and Environment

CWSooner

Re: Weather, Climate, and Environment

FearlessF

Re: Weather, Climate, and Environment

betarhoalphadelta

Re: Weather, Climate, and Environment

Cincydawg

Re: Weather, Climate, and Environment

betarhoalphadelta

Re: Weather, Climate, and Environment

Cincydawg

Re: Weather, Climate, and Environment

CWSooner

Re: Weather, Climate, and Environment

betarhoalphadelta

Re: Weather, Climate, and Environment

CWSooner

Re: Weather, Climate, and Environment