High Flow Throttle Body

Van Canna · Post by **Van Canna** » Wed May 27, 2009 3:24 pm

BMW 530xi: Straight-six petrol engine with second-generation direct High Precision Injection, capacity 2,996 cc, max output 200 kW/272 hp, max torque 320 Nm/236 lb-ft, acceleration 0–100 km/h in 6.6 seconds, top speed 250 km/h (155 mph) (limited electronically), average fuel consumption to the EU standard 8.2 litres/100 kilometres (34.4 mpg Imp) (automatic transmission 8.1 litres/34.9 mpg Imp).

Van Canna · Post by **Van Canna** » Thu May 28, 2009 1:35 pm

http://www.youtube.com/watch?v=XRHINhb2oOs&NR=1

http://www.youtube.com/watch?v=GKTmYin7 ... re=related

Van Canna · Post by **Van Canna** » Thu May 28, 2009 1:43 pm

http://www.youtube.com/watch?v=x-C8rTmu ... re=related

...your heart race...

Only you can understand the feeling, Bill

Van Canna · Post by **Van Canna** » Thu May 28, 2009 1:48 pm

http://www.youtube.com/watch?v=ppdYGNVY ... re=related

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 2:21 am

Van Canna wrote:
http://www.youtube.com/watch?v=x-C8rTmu ... re=related

...your heart race...

Only you can understand the feeling, Bill

Sigh... Beautiful car, and great driving roads. Nice music as well.

Nice photography. However you would think that BMW would have caught the "aliasing" in a few of the shots. Note the wheels going backwards in several of the shots. (The Nyquist theorem explains why.)

Sorry, the engineer in me catches those things.

- Bill

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 2:26 am

Van Canna wrote:
http://www.youtube.com/watch?v=ppdYGNVY ... re=related

Has a certain sound to it, doesn't it?

Check this out. George, Bruce, and I were driven in one of these on the Autobahn. Notice how quiet it gets to speed. Note also how the TDI has lots of low end torque. Much of its giddyup happens off the line. Oh, and FWIW, that's an AWD vehicle. That's why you don't see the wheels spin on that wet road.

Touareg V10 TDI 0-200 *

One day electric vehicles will behave similarly.

- Bill

* 200 km/h = 124 mph

Van Canna · Post by **Van Canna** » Sat May 30, 2009 2:48 am

Right on Bill...they are fine machines and they keep getting better.

What's the projection for the future, Bill.

What will these luxury cars look like and move like _50 years down the road?

Van Canna · Post by **Van Canna** » Sat May 30, 2009 2:53 am

Note the wheels going backwards in several of the shots. (The Nyquist theorem explains why.)

Can you explain this?

Van Canna · Post by **Van Canna** » Sat May 30, 2009 3:02 am

Sigh... Beautiful car, and great driving roads. Nice music as well.

Yes...and for me it is like a haunting experience every time I step into the new BMW Gallery dealership not far from my house on Route One.

Hard to walk out once you step in and see and hear.

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 3:04 am

Van Canna wrote:
What's the projection for the future, Bill.

What will these luxury cars look like and move like _50 years down the road?

I've read lots. Right now the U.S. industry is heading towards electric - because it doesn't require a massive infrastructure change. All you need is the right voltage socket. And you can make electricity from any other energy source.

As soon as the lithium ion battery industry catches up to the demand, that I believe is the way it will go. The tesla electric cars today are running on thousands of laptop batteries strung together, interlaced with a cooling system. Oye! Build a battery made to go in a car, and you're ready to go. I'm not a big fan of government getting involved in industry, but right now they're about to throw lots of grant money out to a U.S. industry that can design such a battery for future electric cars. This way we won't be buying all these batteries from Korea, Japan, and China.

I don't see fuel cell vehicles making it. Too much required to create a hydrogen fueling infrastructure. And hydrogen is a PIA to make.

Biodiesel and compressed natural gas may still have a life for some time - particularly with trucks.

Would you believe that our county has just decided to run a little mini power plant off the methane that comes out of the county landfill? Byproducts of waste being converted to electricity. That's what I mean by being able to make it from anything.

- Bill

Van Canna · Post by **Van Canna** » Sat May 30, 2009 3:09 am

Interesting, but will the cars be just as exciting to drive and sound just as good?

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 3:13 am

Van Canna wrote:
Bill wrote:
Note the wheels going backwards in several of the shots. (The Nyquist theorem explains why.)
Can you explain this?

If you want to represent an analog signal by a digital signal, then you need to sample at more that twice the highest frequency of the original analog signal.

The frame rate of the camera is 30 frames per second. Meanwhile that wheel is going around faster than 15 revolutions per second. If you aren't "sampling" that wheel faster than twice the number of times per second that it's going around, then you will see frequencies that don't exist. For instance if your camera does 30 frames per second and the wheel is going around at 30 revolutions per second, then the camera will make the wheel look like it isn't moving. It will freeze the wheel at the same spot at every revolution. If the wheel goes a little faster or a little slower, then the camera will show the wheel to be going forwards or backwards respectively. Every time the wheel goes near a multiple of the frame rate, the "blur" will once again begin to slow down to a freeze, and then speed up again in the opposite direction.

Engineers had to deal with stuff like this before music could go digital. Sampling rates had to be faster than the highest tone represented in most music. Anything of a higher frequency had to be filtered out before doing the digital sampling to avoid the "aliasing" or false frequencies.

You can see this problem on lots of the old cowboy movies. You'll see the wagon wheels going backwards. Same happens when filming a chopper or plane blade.

- Bill

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 3:16 am

Van Canna wrote:
Interesting, but will the cars be just as exciting to drive and sound just as good?

The electric cars - when pushed hard - will sound like an electric drill on steroids.

The biggest problem with electric vehicles at normal speeds is that they're TOO quiet. There are actually special interest groups representing the blind that are lobbying to have these vehicles make MORE noise so they can hear them when crossing the road. Go figure!

Electric vehicles will have lots of low-end torque. They will pull hard off the line.

- Bill

Bill Glasheen · Post by **Bill Glasheen** » Sat May 30, 2009 3:22 am

Van

This is the Tesla Model S - scheduled to come out soon. (American) They already have 1000 reservations for this car. It starts at about $50K, and comes in RWD or AWD. Range is anywhere from 100 to 300 miles, depending on the battery you get. It'll go as fast as 0-60 in 5.6 seconds.

Will Tesla make it as a car company? I don't know. My feeling is that they likely will get bought, which wouldn't be a bad thing. Already Daimler (Mercedes) has invested in the company.

The Chevy Volt will be much more pedestrian, but still an interesting vehicle.

These are some of the "flagship" vehicles that are coming out - designed to pique consumer interest and get production costs down. An electric for Joe Sixpack will be out probably in a decade.

FWIW, the Chevy Volt is a "plug-in hybrid", meaning that it'll go about 50 miles on a battery and then chug along on gasoline. The Tesla is 100% electric. IMO, that's the way to go. Simpler is better.

- Bill

Van Canna · Post by **Van Canna** » Sat May 30, 2009 3:33 am

The electric cars - when pushed hard - will sound like an electric drill on steroids.

High Flow Throttle Body

Not a bad engine

Here she comes

It does make

Re: It does make