Im asking as i have a 2005 WRX. My mates got a 2004 STI and we are both running similar b.h.p (around 278). He claims that regardless of similar power he would "leave me" if we was to race around a circuit or along "b" roads (closed off of course ).

Reason being becaise he has limited slipp diff. What does it actualy do and what are the pros and cons of having it?

All answers greatly appreciated....!

I sound proper thick i know...

 

He's talking out of his ****.

If the surface is loose and the car is sliding and losing grip then the LSD will help greatly by distributing the drive to both wheels and not just the one thats slipping.

On a gravel stage or a grassy field he would leave you. On tarmac with 278bhp it will make not the slightest difference.

 

Nope, an lsd will bias power to the wheel with the most grip as opposed to a normal diff that does the opposite.

You can get plated or geared diffs,plated can be harsh but work better but are better suited for a track enviroment, a better choice or daily use would be a quaife lsd.

It is geared so no hassles with setting preload or it wearing out fast plus it's gentler should you not be used to using an lsd.


Welcome to the home of Quaife Engineering, World renowned manufacturer of the Quaife Automatic Torque Biasing,differential, Quaife gearboxes, gearkits and steering racks, as well as numerous other transmission and upgrade parts for road cars, race an

 

Yep.
The bias of power is inconsequential until traction is lost. From that point on, an LSD is useful. Up until that point it is not.

On a 4wd car with 278bhp and the slight understeer characterisitcs of a Subaru, an LSD be it ATB, clutch or viscous won't make any difference.

On a 2wd car, front or rear drive, the limit of traction is reached much much earlier and wheelspin becomes and issue and the LSD comes into play.

 

oh right i think im with ya...! So does my 2005 wrx have limited slipp-diff? or is my mates STI limited slipp-diff better?

 

my dad has a slipped disk

 

lol