Variable Torque Distribution vs. Continuous

[KA81]

VTD is 45/55 rear bias

 

i think this is the best AWD config for the legacy, since it would accelerate faster

 

 

the down side is that it only comes in 5EAT

 

Continuous is 50/50

 

which i think is at a disadvantage when accelerating

 

 

so couldnt you change the LSD or EM to believe it is a VTD and not continuous?

 

 

i know with $$ anything is possible so if you dont know shit go on to the next thread so you can get your post counts up

 

anyone ever try, know of anything related to this matter?

 

 

i would actually prefer 40/60 rear split but that would mean even more $$

[Th3Franz]

More rear bias = less understeer. But if you get a front LSD upgrade of the right type, it can also reduce understeer and improve traction.

[phoenix96]

The Subaru 5-speed manual transmissions use a mechanical viscous center differential. I don't think there'd be a good way of changing the front/rear bias.

[apexjapan]

Just in a general sort of sense, it's not going to accelerate any faster with 40/60, 30/70, or 90/10 unless there is some sort of traction issue under acceleration. As long as all the power is getting to the ground and there is no wheelspin, it will accelerate the same whereever the power is going.

 

Now, if you are talking about an ideal launch from a dead start, something like that may be more ideal in that you could dial in some wheelspin to prevent bogging off the line. But we are talking either some massive amounts of power for a Legacy, or pretty crappy tires, to be needing that.

 

The real issue for me towards any torque split is in regards to it's handling at the limits in corners. A little more rear bias would help for turn-in and acceleration out of a corner with less understeer, but that's a black magic sort of thing at best. I don't mind 50/50 at all with the manual tranny legacies because it's at least constant, so there is little to upset the chassis mid-corner. Quite a few circuit race teams used to disable dccd and ayc in the high hp sti's and evo's to eliminate as much torque shifting as possible, as it was easier to setup a chassis for a consistant front to rear torque split.

 

Cheers,

 

Paul Hansen

http://www.avoturboworld.com | http://www.sevenphotos.com | http://www.scoobymag.com

[KA81]

wow, thanks for all your input guys

 

 

now my reason to get an automatic is gone

 

 

sweet manual trans. here i come

 

 

now, sedan or wagon ...lol

[gt_ltd]

gt wagon w/ cobb stage 2

[KA81]

05 of course, or maybe the 07 lineup will bring back the 5mt GT wagon