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#111
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"Magnulus" > wrote in message .. . > > "James C. Reeves" > wrote in message > news >> Read this and you may change your mind about how "essential" ABS is: >> http://www.highwaysafety.com/safety_...antilock.htm#5 > > Very limited evidence. Subjectively, I like how ABS handles during > heavy > braking. I never said ABS brakes faster- it doesn't. Every car I've > driven just about has ABS, it would involve alot of unlearning to go to > regular brakes. > > I know if I lived in an area with alot of ice, stability control would be > a feature I would look for. But it would probably be below just finding > a > good set of winter tires. > > Over a decade of insurance loss data that clearly shows that ABS has done nothing, zip, zero, nada towards reducing accidents among passenger cars and light trucks...you call that "limited evidence"? One thing you are right about though. It's mostly about driver preference (and I would add capabilities). Personally I like having the option of knowing I can employ controlled skidding techniques when/if necessary as one form of directional control to help get out of a tight spot. When a car is equipped with ABS, that is one vehicle control option/mechanism that is taken away from the driver. That is not a good thing in my view. Although I suppose if one is a driver that just closes their eyes, throws their hands up in the air, mashes the brakes as hard as they can and preys for a miracle, ABS can be useful for that type of driver. What I do find interesting is why a few people seem to have such relative problems with vehicle stability without ABS. 35 years and well over a million miles of driving on ice, snow, sleet, you name it, I don't see the problem and I've owned both types of cars...with and without ABS (my current daily driver does NOT have ABS). I find that ABS, frankly, gets in the way of my controlling EXACTLY what I want the vehicle to do and when I want it to do it. VERY unnerving in critical situations as far as I'm concerned. But, to each his own, as they say! :-) |
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#113
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"Nate Nagel" > wrote in message ... > Magnulus wrote: > >> ABS doesn't cost the 600 dollars that Toyota charges to have it as an >> option. >> >> > > Of course it doesn't, there's some markup. But when you add up all the > parts that's not really out of line. You have three or four speed > sensors, tone rings, etc plus another computer, a hydraulic control unit > with several valves, a pump, an accumulator or two, extra plumbing etc. > etc. etc. plus of course development time on both the hardware and > software. If you think you can design an ABS system that's significantly > cheaper but still makes money, send me your resume, I know people who > would be interested in speaking with you. > > Now whether or not the $600 is *worth it* to the customer is another > question entirely... > > nate > > -- > replace "fly" with "com" to reply. > http://home.comcast.net/~njnagel As Nate points out, there is a mark up (or Toyota doesn't make money..which is what they're in business to do). Mark up's on options are often 100%. So the system is probably about $300 or so in actual cost. Add up the components that make up a ABS system, that sounds reasonable. Now, I can answer the question if $600 (or even $300) is worth it for the option! ;-) |
#114
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Cartlon Shew > wrote:
> > (Matthew Russotto) wrote: > > > All three require significant extra parts added to the car. > > ABS the most, cruise control the least. None of them is necessary. > > I've always driven cars with no ABS, and I have driven cars with no > > power steering and no cruise control. > > cruise control is highly overrated anyway.... How so? I find cruise control to be a boon to long distance travel. -- Scott M. Kozel Highway and Transportation History Websites Virginia/Maryland/Washington, D.C. http://www.roadstothefuture.com Philadelphia and Delaware Valley http://www.pennways.com |
#115
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"Scott M. Kozel" > wrote in message ... > How so? I find cruise control to be a boon to long distance travel. > It's OK to have. I find I tend to become less alert sometimes if I use it, though, which is disconcerting. I'm still a fairly new driver, though, but having a feel for the gas and engine RPM's might be keeping my mind from wandering. I'm also finding there are some small single-lane highways that are just inappropriate for cruise control, especially ones with anything but very gradual turns. Letting up on the accelerator a bit on those turns and not using cruise control produces a bit more confidence, whereas the cruise control will whip the car around a bit. I am finding the same thing with an automatic. On a highway, having so little to do in some ways reduces the attention. Sometimes I wonder how it would have been if I bought a manual and learned to drive that way, but OTOH, I got a good deal, and should the need arise, I'll have a car with good resale value. Either way, I try and drive in such a way that I'm aware of how fast the engine is going, and since it's a diesel, it tends to keep the engine revs in a narrow band, at least in economy shifting (with the sport mode or kickback, it tends to shift higher, going up to 3000-4000 RPM). |
#116
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> Fool, at highway speeds (even 55MPH) the increased hit to fuel
economy > from wind resistance from rolled down windows is higher than the increased > hit to fuel economy driving with AC. Nope. MythBusters dedicated part of one episode to disproving this myth. http://www.mythbustersfanclub.com/ht..._catapult.html It is more efficient to roll down your windows than use your AC. They took identical vehicles, put only 5 gallons of fuel in each, ran them around a race track simultaneously at 45 mph one with the windows down and AC off and the other with the windows up and AC on, and the vehicle with the AC on ran out of fuel first. The vehicle with the windows down ran 15 miles further. The Florida Highway Patrol did a study of their own cruisers in real world conditions (I have no idea where to find the reference, I read it Years ago- early 90's maybe-) that found the most efficient was windows up, AC off, which is completely unrealistic in Florida (don't the cops have a union?). Second best: windows up, AC on. Third: Windows down, AC off And they even tried the obviously wrong: Windows down, AC on. Mythbusters drove at 45mph. They should try this test at 60mph (speed of traffic in 45 zones in my town) or better at 80mph (speed of traffic on most Interstates). Aerodynamic drag increases greatly at highway speeds. Try this yourself: install a vacuum gauge (often sold as a mileage gauge) in your car. Drive at realistic highway speeds in above conditions. At 45, little or no variation. At 80, a large difference. |
#117
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snip
The mythbusters test was not valid. A race track is sheltered from the prevailing wind in many cases. That is due to the stands and the banks on the corners. A second major factor is traffic. There was no oncoming traffic such as semi trucks to disturb the airflow around the cars. Had there been traffic, the car with the windows down would have had far greater drag. Third, there were no random objects near the roadway to cause disruption to the wind patterns, such as buildings and signs near a highway. Very few people take their car out on a track or deserted highway like US-50 in Nevada. Most of us drive in the real world. I agree. I am one of those few (how'd you guess Nevada!?) But I also consider myself a real world driver.... |
#118
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On 2005-01-30, Bill the second > wrote:
> I'm waiting for a hybrid that burns an renewable fuel (that's actually > renewable, not one that takes more energy to refine than it contains) I'm trying to figure out how you can have such a thing and not violate the second law of thermodynamics. Then again, I don't claim to be a chemist or physicist. I thought that seemed odd. He did ask about renewables. What's the downside of biodiesel? |
#119
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On 24 Feb 2005 21:22:10 -0800, wrote:
>> Fool, at highway speeds (even 55MPH) the increased hit to fuel >economy >> from wind resistance from rolled down windows is higher than the >increased >> hit to fuel economy driving with AC. > > >Nope. MythBusters dedicated part of one episode to disproving this >myth. >http://www.mythbustersfanclub.com/ht..._catapult.html > >It is more efficient to roll down your windows than use your AC. They >took >identical vehicles, put only 5 gallons of fuel in each, ran them around >a >race track simultaneously at 45 mph one with the windows down and AC >off and >the other with the windows up and AC on, and the vehicle with the AC on >ran >out of fuel first. The vehicle with the windows down ran 15 miles >further. I like Mythbusters; we have a season pass for it on our TIVO. But thinking that their show is a scientific class rather than entertainment is kind of dumb; it took them four tries to get even close with their chicken gun. As for their gas mileage with AC test, 45 mph isn't even in the running. Going around a race track circle adds more friction losses than AC does, so it very badly skews any results. I like them, but they are for entertainment purposes only. I'm not commenting on the use of AC vs open windows, except to say that *in my experience*, AC costs less than having the windows down while we are travelling on Interstates at speeds of 65+. And, having the windows down at those speeds precludes conversation. > > >The Florida Highway Patrol did a study of their own cruisers in real >world conditions (I have no idea where to find the reference, I read it >Years ago- early 90's maybe-) that found the most efficient was windows >up, AC off, which is completely unrealistic in Florida (don't the cops >have a union?). Second best: windows up, AC on. Third: Windows down, >AC off And they even tried the obviously wrong: Windows down, AC on. > > >Mythbusters drove at 45mph. They should try this test at 60mph (speed >of traffic in 45 zones in my town) or better at 80mph (speed of traffic >on most Interstates). Aerodynamic drag increases greatly at highway >speeds. Try this yourself: install a vacuum gauge (often sold as a >mileage gauge) in your car. Drive at realistic highway speeds in above >conditions. At 45, little or no variation. At 80, a large difference. -- Bill Funk Change "g" to "a" |
#120
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TV's Magnulus wrote:
> "James C. Reeves" > wrote in message > news >> Read this and you may change your mind about how "essential" ABS is: >> http://www.highwaysafety.com/safety_...antilock.htm#5 > > Very limited evidence. Subjectively, I like how ABS handles during heavy > braking. I never said ABS brakes faster- it doesn't. Every car I've > driven just about has ABS, it would involve alot of unlearning to go to > regular brakes. It's certainly saved my ass several times. -- Shake says that books are from the devil, and that TV is twice as fast - Meatwad I'd rather die than give you control - Trent Reznor |
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