power ratio

[joeWM]

whats the power ratio of our cars?
is it like 50/50?

[Skruyd]

I think it was 50/50 for the first two gears the the differential distributes the power where it needs it for 3-5.

[skid542]

The 5mt distributes 50/50 through all gears.

The 4eat typically runs around 90/10, front/rear, but adjusts depending on traction requirements. The manual button does have an effect on this distribution in 1st and 2nd.

[Skruyd]

Ok, sorry about the first post. It depends on your transmission but here yea go. http://wiki.nasioc.com/wiki/Legacy

Chassis Specifications

The Legacy has been available in two primary chassis configurations since its introduction: a four-door sedan and five-door wagon. During the first and second generation there were high-roofline versions of the wagon model available in all markets. The most common example of these in North America would be the 94 GT and 96-99 Outback models.

The Legacy was available with either a four-speed, electronically-controlled automatic transmission or a five-speed manual transmission. Only the first-generation Sport Sedan and Touring Wagon models and the second-generation GT and Outback models had hydraulic clutches, while all other models were cable-actuated.

All-wheel drive was optional in the Legacy until the 1997 model year, when Subaru decided to progressively produce all of their North American market vehicles with the same drive system. Automatic transmission models use a 90/10 percentage power split in low gears and switch alternately to a 50/50 split in higher gears while the manual transmission models are a static 50/50 split with variations in actual power due to traction conditions.

Limited-slip differentials are available in all of the MY2000 and following GT and Outback models. The 1991 Sport Sedan was fitted with a limited-slip as standard equipment and subsequent turbocharged models may have had it as an option.

Subaru's VDC was introduced in North America first with the 2001 Outback. It was coupled to the newly unveiled EZ30 six-cylinder flat-six engine and a McIntosh stereo system.

[skid542]

^^^ The 91' did not have the rear LSD as a standard equipment.

It was only optional on the 91' Turbos.

[kimokalihi]

The 1991 Sport Sedan was fitted with a limited-slip as standard equipment and subsequent turbocharged models may have had it as an option.

I thought the "Sport Sedan" WAS the turbo charged version? Hence the SS?

[skid542]

My apologizes. The turbo charged version is the SS or the TW - touring wagon, you are correct. I should have been more clear in my response.

However, it was still only an option and not standard equipment. And it was not an option on later tubo models as I understand it.

I'm not trying to be a nit-picky but I'd hate for someone to go grab a diff from a turbo in the junkyard thinking they're getting an LSD when they may not be.

[John Drivesabox]

As far as I know, all '91 Turbo models and no 92-94 models were fitted with the VLSD from the factory.

[kimokalihi]

Hmm, that I did not know. I just went outside though and looked under my car and it says right on the diff 3.900 viscous LSD, sweet!

How much of a difference does the LSD make?

[skid542]

It was only an option on the 91' Turbo's. Do some searching through the Driveline forum and the For Sale forum and you'll find plenty of evidence to support this.


Kimo, you're a lucky guy. The LSD makes a pretty big difference in the snow and gravel. You can feel it on the tarmac as well when you're really cornering. I installed one on my OBW and it made a significant difference when the car's at it's traction limits.

[ericem]

Just don't expect it to be as good as a locked differential offroading. They need to warm up to some degree as well.

[Legacy777]

It was only an option on the 91' Turbo's. Do some searching through the Driveline forum and the For Sale forum and you'll find plenty of evidence to support this.

The VLSD in 91 was not an option, it was standard equipment on the sport sedan. The parts book confirms this.

[skid542]

No shit? Wow. I could have sworn otherwise.


Does anyone have some icecream to go with this crow pie I'm about to dig into?

Sorry guys.