Powerkiter

Does the MY04 WRX have limited slip differentials ?

Various people I have spoken to have given different responses.

T5NYW

iTrader: (4)

Yes WRX LSD in the rear axle only and the STi's have front and rear, IIRC ( the center diff is fixed, on the WR1 and Type C's is variable DCCD )

There are different type's of LSD's, some work on a clutch plate principle and will "slip" to allow cornering, inner and outer wheels travelling at differrent speeds. fitted to rear

The other is a fixed geared arrangement which allows the most Torque to go to the side with most grip. (SureTrac Sti front)

This is a very, very basic explanation of the difference's of the two and appologees to you Technical Buff's, who'll soon will give you the Definative

Tony

MJW

Howstuffworks.com is pretty useful for this sort of thing !
And yes the WRX has a rear axle LSD

Powerkiter

Is there any device between the front and rear axles ?

T5NYW

iTrader: (4)

Yes, centre Diff is a "Fixed Diff" on a WRX not sure the exact figure but about 60% front 40% rear Torque.

(DCCD-A) Driver Controlled Centre Diff-Auto is fitted to the WR1/STi10JDM and optional extra on the MY04STiEU not sure on UK!! this varies the amount of Torque delivery to front and rear wheels. Simular to DCCD fitted to Classic STi's and 22B's but now with an Auto mode.

That how it works site is far better than me wittering on LOL

IIRC IMHO AFAICR etc

Tony

greasemonkey

WTF? Have you been taking speed, or maybe something even more mind-expanding this morning Tony?

Yes. It has the same transmission layout adopted by previous UK specification WRX's and Turbo 2000's. i.e. a viscous coupled limited slip diff in the rear axle, and another viscous coupled diff in the centre. The front diff is a regular "open" item without any slip limiting component.

T5NYW

iTrader: (4)

GM cheers knew you'd be here somewhere Tjhink I drifted of on the wrong tangent you'll get Old one day and find it hard to concentrate

Powerkiter,
See how someone "who know's there stuff" only takes a few lines to explain things and those who "think they do" pages! and then it's wrong!

I'll just sign off and do another line, of white stuff (not really)

Tony

Ps Viscous eh gosh thing have moved on since my old Escort's LSD's, in the English then Atlas axle Just got the Parts manual for MY01/02(inc STi) on CDROM in PDF format must get and read it