Explains a lot of what I noticed during the testdrives.
Dave
DCfromCapeCod
01-10-2006, 10:09 AM
It is all relative...coming from a Cayenne Turbo, I feel like I am in a lightweight tin can.
Much prefer it though, it is like driving a go-kart.
A3.2QMax
01-10-2006, 10:11 AM
a V6 engine instead of a 4; a 3.2 litre instead of a 2, Quattro instead of FWD, larger body panels for S-line bumpers (plus rear spoiler), larger mainfold/exhaust system to deal with increased engine size(?). Drivers seat is power so there is the weight for the servo motor, also fog lights, and then the extra weight of the S-line monikors
When you have a larger engine, it will increase the weight of many components (maybe the drive axle?). I'm not sure if the stiffer suspension adds/decreases or is weight neutral.
I guess you could compare the sports A3 vs. standard for a 2.0. Who wouldn't want the extra weight considering the 3.2 is much higher performance than stock 2.0?
Were the wheels/tires identical in all of those comparisons?
Did you look at a FWD A4 vs. an S4? Or even a 3.2 A4 with Quattro?
When the S3 or RS3 is developed (if it is) what weight do you think it will approximate the A3 2.0 or the 3.2? It's going to be the 3.2 and I doubt anyone who doesn't have an axe to grind and is objective is going to say, hey, my A3 2.0 handles a lot better and performs a lot better than an S3!
Yeah, let me get a 2.0 turbo A4 instead of an S4, yeah right! :)
Then, there may be advantages to additional weight, 1) for snow conditions 2) better road huggability in windy road conditions 3) better survivability in an accident.
Disclaimer: There might be other components that explain the greater weight of the 3.2 that I have not identified. Such as a the rear differential.
crew219
01-10-2006, 10:22 AM
That extra weight doesn't necessarily help in a crash considering the drivetrain components are designed to fall underneath the car.
"road huggability"? You're kidding me right? That has more to do with suspension . . . hell the 3.2 might hug the road so well that it goes off of it :-P
What real performance advantages? It seems like the extra hp / tq in the 3.2 is mainly there to make up for all the extra weight.
Dave
A3.2QMax
01-10-2006, 10:29 AM
I'm talking about a front end collision, I rather have a 3.2L or a larger engine in general.
Road huggability in terms of WIND. and WIND shear. Read.
I'll take a Quattro on rails anyday over a FWD.
I'm not arguing for the extra performance advantages of the greater weight! I'm responding to your hint that a 2.0 handles better than a 3.2 I drove both before deciding on a 3.2.
I mentioned that the greater weight, given it's a larger engine size, and having AWD, makes the 3.2 a safer car in the event of an accident, or very windy/wet driving conditions (holding everything else constant).
In actuality, with Quatro it will handle better in ALL driving conditions. But then I'm not looking to do stock car racing on my daily commute. I do that with the wifes Golf on weekends :)
crew219
01-10-2006, 10:35 AM
Sorry, but your claim that added weight from driveline components that are designed to break-away helps during an accident is bull.
Now if the extra weight were used to reinforce the chassis, I'd agree with you.
you might be better off. After all the car that decellerates the slowest in a crash, is usually the one that places less stress on the occupants. Now that is assuming the passenger cage is properly designed:) It's why large SUVs usually do well in crashes with (smaller) cars :-(
crew219
01-10-2006, 01:19 PM
400lbs more and it still uses the same front brakes as the 2.0t.
Dave
crew219
01-10-2006, 01:20 PM
April
01-10-2006, 01:32 PM
crew219
01-10-2006, 01:35 PM
avoiding or lessening the impact of a crash.
Dave
A3.2QMax
01-10-2006, 01:36 PM
A3.2QMax
01-10-2006, 01:40 PM
based on new information on SUV's and crash findings with tipping of vehicles
crew219
01-10-2006, 01:44 PM
rush hour.
Going back from upstate NY to home in CA . . . . huge shift in driving styles . . .
Dave
A3.2QMax
01-10-2006, 01:46 PM
It flipped it in the air 5 times and rolled... was only going 65km/h dodged a car that was in the middle of the road and hit some gravel and then lost control and hit a ditch and it went into the air and traveled for about 25 yards and flipped and rolled 5 times.
Either way, 320 lbs isn't going to make any difference in a crash like this (but the larger engine up front probably will) and Audi/VW are some of the safest cars in the world.
Drive safely
April
01-10-2006, 01:49 PM
cars pulling into that slot in front of you ;-) Very prevelant in areas with high concentrations of recently landed immigrants who are used to being tightly packed. If you keep backing off to maintain the distance, you'll be going slower and slower as everybody cuts in front.
crew219
01-10-2006, 01:49 PM
****less, you can easily imagine things . . .
Dave
A3.2QMax
01-10-2006, 01:52 PM
crew219
01-10-2006, 01:59 PM
Ya driving in CA kinda sucks because there are so many uninsured immigrants or illegal aliens without driver's licenses that can't drive.
Then there's the 80mph "slow" lane . . . .
Dave
April
01-10-2006, 02:07 PM
I don't care where somebody comes from, the laws of physics are universal :-)
Driving the Alfa in SoCal never made me nervous per se, but here in NorCal, it's another story. Very glad the A3 is so highly rated in safety.
crew219
01-10-2006, 02:13 PM
ya that's what driving in indonesia is like . . .
Dave
Chip
01-10-2006, 03:03 PM
What was your source of weights? My A3 3.2 showed 3580 on local scale used for material trade. This is still porky but not quite as bad. Fuel light had been on for about 10 miles.
crew219
01-10-2006, 03:13 PM
Chip
01-10-2006, 03:59 PM
crew219
01-10-2006, 04:25 PM
My vehicle came with documentation that indicated that it had 3188lbs . . . . that was probably the weight of the vehicle with an empty tank of gas . . . similar to what you weighed your car at.
Dave
crew219
01-10-2006, 05:42 PM
Courtesy of bass biker . . .
Stock car . . . vag-com dyno . . . crank hp & tq.
<img src="http://home.comcast.net/~jimwagner/hpchart.jpg">
Bhvdr got similar #s too when he converted his stock dyno with the standard quattro correction factors . . .
Actually human factors engineering studies were done in Europe showing people slow down when the see lines on the road, it's a natural response. That's why they have them in "turn abouts" in London.
ShadY12v
01-10-2006, 06:29 PM
I was going to say the same myself!!!
LavaGrau_A3
01-10-2006, 07:03 PM
"You know, I should've gone with the 2.0T: It's lighter, more powerful, and doesn't have that annoying Quattro thing (which really isn't Quattro anyway). And the 3.2 is soooo rough and raspy, not to mention overpriced. About the only thing the 3.2 has going for it is power lumbar support."
crew219
01-10-2006, 07:07 PM
Although if you're gonna talk smack, better bring some proof.
This is meant to be purely technical.
Dave
crew219
01-10-2006, 07:18 PM
3637lbs for the RS4<ul><li><a href="http://www.rsportscars.com/eng/cars/audi_rs4.asp">http://www.rsportscars.com/eng/cars/audi_rs4.asp</a</li></ul>
The above is the APR stock and modified dyno run. Stock the car made 185whp and 185wtq. That would mean the QUATTRO car only lost 7.5% to the wheels if we based the number on the Audi quoted 200chp. cheers! Mike
to stand in front of when it's running full speed :) That sucker puts out some serious wind, and uses some serious electricity;) See large silver box extending down from the roof in front of car. Yes, it has a filter:)
The U.S. Spec RS4 specifications haven't been released yet. That weight is for Europe. Believe me the U.S. Version will weigh more!
Example: The 3.2 DSG S-line Sportback in Europe weighs 3,450lbs. and ours weighs 3660... Please tell me what the added 210lbs is???
customfab
01-11-2006, 03:48 PM
353/s/
01-11-2006, 03:53 PM
rbt
01-12-2006, 10:08 AM
"Then, there may be advantages to additional weight, 1) for snow conditions 2) better road huggability in windy road conditions"
I disagree wholeheartedly. sure, extra weight can be 'justified' if it comes with some desired/enhanced functionality...but as pointed out elsewhere it is the one factor that is *always* hurting the dynamics of a car: accel, braking, transient response, steady state response, fuel economy. Quattro system is no different, it's a compromise, but in this case a pretty compelling one.
A3.2QMax
01-12-2006, 10:22 AM
sleet and snow and rain and wind (the condition I pointed out that you were unable to dephicer and didn't include in 3) but most SANE people do not.
And anyone with half a brain would rather be in a heavier car in case of impact. There is a relationship between vehicle weight and survivability.
Some of you goofballs on this forum are playing too many video games and blowing your basilar membranes out with iPods and that's while driving like speed racer and not showing any awareness for safety.
Most people buying Audi's factor in safety. We're not all 20 year old single guys looking to "trick out" our cars. Jesus, you guys are a real piece of work (but when I was 20 I was doing the same thing with BMW's but we didn't have M and S cars back then either! :-)
rbt
01-12-2006, 01:19 PM
hence pointing out your examples 1) and 2).
Safety is another issue altogether; weight can come into play there too, but it *shouldn't* be on the top of the list of safety selection criteria. anybody who knows a little about physics/cars should know this. Structural design, passive safety equipment, driving aids, etc. all play a huge part too. A car with extra 300# due to quattro will *NOT* be more impact-safe compared to the lighter non-quat equivalent (assuming same everything else).
Back to the first point....I realize raw performance isn't the be-all and end-all. this isn't the SCCAForums website after all, but most folks who post on AW are enthusiasts and therefore discussions centered around a *performance-oriented bias* shouldn't be a surprise to anyone,should it????