[geremy]

Sweet. Another rider with a Touareg. One of the reasons I switched to the Egg was so I can maybe in the future tow a bike trailer.

 

[pfb]

I have no idea if VW actually change anything other than shift points (and kind of doubt they do), but there really is no reason timing and fuel couldn't be tweaked, even on the fly.

Companies like Apexi make many products that do exactly that, though typically for high performance Japanese cars like STi, Evo, S2000, Supra's, etc.

As has been pointed out, motorcycles frequently get remapped fuel mixtures as well, some with handlebar controls to change the mapping.

I've seen many cars tuned on a chassis dyno with significant gains, usually by leaning out the fuel to a perfect stoichiometric mixture at different RPM levels.

Oh, and as for riding, currently have KTM 950 adventure, BMW 650 Dakar, KTM 520 MXC, Suzuki DRZ400. I kind of lean towards the dirt-bike and dual-sport side of things...

 

[Twowheel]

We're going WAY OT here, but you should get yourself a VersaHaul.

Great product. Only flaw is that is needs a good wheel chock to hold the bike while you tie her down.

Here's my '04 'Reg with my '03 R6.

 

[Twowheel]

Oh, and as for riding, currently have KTM 950 adventure, BMW 650 Dakar, KTM 520 MXC, Suzuki DRZ400. I kind of lean towards the dirt-bike and dual-sport side of things...

I'm an off-road guy too. Just picked up my '07 KTM 525EXC yeterday.

Gotta have more than one eh? :joy:

 

[Vegas Matt]

Not to further the off-topic, I'm another two-wheeler here. '01 Suzuki SV650S, '99 Yamaha YZ400F, '95 Kawasaki KX125 (needs top-end rebuild). Damn, I've got vintage iron by comparison!

I remember reading in Car and Driver about the Audi S4 (I think) and its "S" button on the dash in the US models. There was a reference to a change in the exhaust note and I think more power when "S" mode was engaged.

I wonder if the Touaregs change the fuel/spark mapping as well. As far as I ever knew, it changed tranny shift points and that was it. Thinking on it more, it may change the mapping, but that would be one helluva lot of R&D, all of which would be different for each engine worldwide.

Call me pessimistic, but I think it's a shift point change only. I may be wrong, but I doubt they are going to put that much effort into tuning it for each powertrain worldwide.

Matt

 

[czechT698]

Hey guys, how is the KTM??? Im thinking of getting one. :wave:

 

[Twowheel]

Not to further the off-topic, I'm another two-wheeler here. '01 Suzuki SV650S, '99 Yamaha YZ400F, '95 Kawasaki KX125 (needs top-end rebuild). Damn, I've got vintage iron by comparison!

I remember reading in Car and Driver about the Audi S4 (I think) and its "S" button on the dash in the US models. There was a reference to a change in the exhaust note and I think more power when "S" mode was engaged.

I wonder if the Touaregs change the fuel/spark mapping as well. As far as I ever knew, it changed tranny shift points and that was it. Thinking on it more, it may change the mapping, but that would be one helluva lot of R&D, all of which would be different for each engine worldwide.

Call me pessimistic, but I think it's a shift point change only. I may be wrong, but I doubt they are going to put that much effort into tuning it for each powertrain worldwide.

Matt

Matt,

Nice on the KX It's a great bike. The EXC is my 1st dirt bike in 20 years. I used to rce them in my youth.

With regard to the effort put forth for changing the fuel mapping and/or the exhaust port system, if these things can be done on $10,00 motorcycles, then for a car as technically advanced as the 'Reg is, it'd be an easy thing.

Changing the intake port shape is another MC item. This years R1 has a variable flow funnel. When you open up the throttle beyond some predetermined point, the intake tract is elongated to allow better air flow.

I'm still going to guess that there is something going on beyond just changing shift points. After all, it holds the RPM's longer in S mode as well. Can't do that without some change in the ECU.

 

[Godwine]

Oh no, don't get me wrong, I am not saying that it is not possible to change fuel regulation or timing on the fly, I am just saying its an expensive system. Well, but then the car is very advance and sophisticated, I guess it is possible...

 

[CA Touareg]

I have a very good source at VW and they said that only the shift points change and nothing else. He also said the transmission will shift to 6th but only if you are going over 120 mph.

Off subject: we also had dirt bikes but have since sold them. We hadn't ridden in 20 years also but it came right back to us. We had:
2 Honda 250R, Honda 450R, Honda 230F, Honda 50, Suzuki DRZ 250, and a Kawaski 250.
We wanted a KTM but quit riding before we discovered them - awsome bikes. They closed off our riding area so it became too much trouble just to ride. You know - California, need more houses!

 

[Godwine]

hmm.. interesting, ok, i guess thats what it is then

 

[Vegas Matt]

He also said the transmission will shift to 6th but only if you are going over 120 mph.

I know if you engage the cruise in S it goes into sixth like normal. Not sure about 120, haven't tried it yet. (It's only been up to 117 or so. )

They closed off our riding area so it became too much trouble just to ride. You know - California, need more houses!

Sounds like Nevada is getting. I think we should just rename our state "East California" and call it a day.

Remember, you heard it here first...

Matt

 

[Twowheel]

I have a very good source at VW and they said that only the shift points change and nothing else.

There is no question that more than that is happening. When under hard acceleration is Sport mode, the system holds it's RPM's longer when you back off of the throttle. No way can that be done by simply changing shift points. And what exactly is the definition of changing shift points? Can’t happen at the mechanical level (Assumption) as the transmission would need two separate sets of gears and twin shafts.

So, it must be happening at the software level. If that is the case, then all these other suppositions about engine mapping and the like can also be true.

I would posit that this is a not a static system. All you need to do is drive it for a while in varying modes and under assertive and more casual conditions to see that there are some adaptive scenarios being considered by the driveline management.

Remember that VW was calling the transmission ‘adaptive’ when they released the ’04.

Also, unless you know a designer, most people at VWOA are not in the know. VW (Germany) seems to hold their info in close confidence.

With regard to how expensive a system may be, remember that VW and Audi's complete lines have Tiptronic. That's a lot of models to amortize R&D costs over.

Also per my previous posts, if a $10k motorcycle can have on-the-fly engine mapping, then certainly a $40k to $70k car can.

 

[geremy]

Holding onto revs longer can be accomplished by the throttle-by-wire mapping.

 

[Twowheel]

Holding onto revs longer can be accomplished by the throttle-by-wire mapping.

Agreed. But that is another example that "shift points" are not the only feature contained in the whole system.

 

[volkster]

What I have noticed is that when I am in D and floor it, the car red lines all gears as long as I keep my foot into it. The same thing happens when in S also. Does it accelerate faster in S, I am not sure but I don't think so. So I am not sure how shift points work with that kind of result. It seems that the shift points have to be coupled with load and acceleration.

 

[matthew@f]

S mode is very simple

it does a few things.. imho

1. holds the gears longer
2. changes down earlier
3. locks torque converter later

2 & 3 mean that the car will feel more powerful as 1. you have more torque due to either being in a lower gear 2. and revving higher therefore access to more hp at the same given road speed as in D

my oil burner seems just as happy in D or S such is the torque characteristics of the engine.



pcrage dude, there are people in the world with real problems, get over it and move on for your own sake

 

[czechT698]

pcrage dude, there are people in the world with real problems, get over it and move on for your own sake

second that. i mean if your car bugs you so much just sell it or whatever. And be a man and stop whining - there is a czech saying that says "it could always be worser."

 

[gaijin]

He also said the transmission will shift to 6th but only if you are going over 120 mph.

Well, I went out this morning and tried it ... in S mode at 127mph actual / 130mph indicated the transmission stays in 5th gear.

 

[pcrage]

hey czech....get with the program...I have said many times I had two defective POS touaregs that I lost money on and got rid of both...get up to speed pal.

 

[pcrage]

And be a man and stop whining -

PS That would require some major surgery Czechie....