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Primotenente Primotenente is offline

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  1. Primotenente
    05-09-2014 01:00 AM - permalink
    Primotenente
    Hello

    Exactly. Side to side is another thing and done by electronics. Xmode and breake vectoring are about side to side. This is what subiesailor fails to understand and why he is wrong.

    1.
    Yes, in theory they can vary torque more, and make it a front wheel drive but what would be the advantage of having a fwd or "almost fwd vehicle"? So it is only a disadvantage, especially as the clutch is always slipping and sending power to the rear.

    2.
    The differential does not work as an LSD - the MPT works as "LSD" - the differential only works as differential and balances torque. Point is a differential is made for this, a clutch not.

    The point is that a differential is much smoother and faster and therefore the better solution. Whith a slight rear wheel bias you have better handling. VTD feels more like rwd, the other like fwd with endless understeering.

    Go to youtube, enter "quattro snow", whatch those viedeos and you will see what I am talking about.
  2. pcray1231
    05-08-2014 06:07 PM - permalink
    pcray1231
    Hey man, too bad they closed that thread. Teach me something. Per my understanding, the thing that distinguishes VTD from "Active AWD" is the planetary center diff. Thus we are only talking about front/rear power distribution, and left/right is an independent conversation.

    BOTH use an electronically controlled MPT clutch. VTD adds a planetary gear differential. So, what does that planetary center diff do? My understanding:

    1. Bias the torque to the rear.
    2. Act as a center LSD. Front/rear remains controllable with MPT clutch but can't step too far out.

    That said, if the MPT clutch is truly fully controllable, capable of handling real loads and react very quickly, then even without that planetary diff:

    - Subaru can set the bias pretty much wherever it wants.
    - The LSD would almost never engage, and when it does, it'd be in situations where you might rather it not.

    I realize the "if's" are big ifs. But we're talking theoretically here. What am I missing?

  About Me

  • About Primotenente
    Location
    Europe
    Your Car
    Outback 3.0 AT MY05 (VTD/VDC/LSD)

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  • Last Activity: Today 03:36 PM
  • Join Date: 12-29-2007
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  Mentions

01-12-2016
08:34 AM - 1454 mentioned Primotenente in post Article: The 2017 Audi A4 Allroad Is Your Luxurious Subaru Outback
Primotenente I don't know that I ...
11-05-2015
12:19 AM - MiddleAgeSubie mentioned Primotenente in post Deleted Posts

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  Quotes

05-23-2016
05:00 PM - Primotenente quoted subiesailor in post Outback v. VW Alltrack v. ??
Different systems yes, same off ...
04:24 PM - subiesailor quoted Primotenente in post Outback v. VW Alltrack v. ??
BMW and Mercedes use different sy...
02:23 PM - Primotenente quoted ammcinnis in post Outback v. VW Alltrack v. ??
A semantic distinction without...
05-21-2016
03:01 PM - Primotenente quoted ammcinnis in post Outback v. VW Alltrack v. ??
??? My post was in the cont...
12:59 AM - ammcinnis quoted Primotenente in post Outback v. VW Alltrack v. ??
An open diff equals torque ... ?...
05-20-2016
05:05 PM - bspot quoted Primotenente in post Outback v. VW Alltrack v. ??
No. An open diff equals torque, i...
04:02 PM - Primotenente quoted ammcinnis in post Outback v. VW Alltrack v. ??
So does an open differential. ...
03-01-2016
10:36 AM - Primotenente quoted z28dug in post Is this the "normal" Gen. 5 Outback CVT Sound ?
I'm pretty sure Audi, BMW, ...
02-17-2016
12:59 AM - Primotenente quoted EaglexPDX in post 2.5 vs 3.6: Real-world fuel economy
By watching a comparative test...
02-16-2016
10:24 PM - EaglexPDX quoted Primotenente in post 2.5 vs 3.6: Real-world fuel economy
By watching a video with a Forest...
10:52 AM - Primotenente quoted EaglexPDX in post 2.5 vs 3.6: Real-world fuel economy
Ignore those "silly" IIHS cras...
07:45 AM - EaglexPDX quoted Primotenente in post 2.5 vs 3.6: Real-world fuel economy
Grow up and get over some silly r...
07:19 AM - mikenk quoted Primotenente in post 2.5 vs 3.6: Real-world fuel economy
Grow up and get over some silly r...
12:55 AM - Primotenente quoted EaglexPDX in post 2.5 vs 3.6: Real-world fuel economy
Subaru's Eyesight system is in...
02-15-2016
09:15 PM - EaglexPDX quoted Primotenente in post 2.5 vs 3.6: Real-world fuel economy
No, it is not the "latest and gre...
04:19 AM - Primotenente quoted EaglexPDX in post 2.5 vs 3.6: Real-world fuel economy
But Subaru is in fact the "lat...
01-30-2016
02:45 AM - Primotenente quoted JV63 in post Santa Fe compared to Outback 3.6
If Rick and company had t...
01-28-2016
06:31 AM - mikenk quoted Primotenente in post Looking for input on 2.5 vs 3.6 decision
Especially as different countries...
02:05 AM - Primotenente quoted 1454 in post Looking for input on 2.5 vs 3.6 decision
I hate to be morbid, but ...
01-12-2016
09:27 AM - 1454 quoted Primotenente in post Article: The 2017 Audi A4 Allroad Is Your Luxurious Subaru Outback
A4 and above have longitudial eng...

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