Truetrac Failure

[love ke70]

OC, the lockrite lokka does drive the inside wheel in a corner. is best for 4wding really..i wouldnt use one for the purposes of driving fast around corners.
and from what i have heard, the aus made "lokka"'s are not so good, if you are getting a "lokka" get one of the US one. they are similar to a detroit, but work in a different manner, but do the same thing.
they can be a prick under decel (ie, going down a steep hill on compression) as they will lock the diff as the gears are meshed hard, but a dab of a brakes will relieve the stress.

the lokkas do not clunk as such, a mild ticking can be heard though.

[blaze86vic]

You seem to speak of the TrueTrac as if it were a locker. I'm not trying to assume anything, but you are aware that a TrueTrac is never "locked" and that it is constantly allowing one wheel to spin more than the other. For road racing where you don't want the tires to spin until their peak holding force, then limited slips are the way to go.

[TheStitt]

I have never ever had a problem with mine 2 years in the wagon and never a let down.

even heli's

[IN 05 NT]

yah, clipping curves and lifting rear wheel wil not help... but that is all part of playing with suspension setups

are lockrite the clunkers? (looks like it.. dog teeth lookin thing)
ie, there is no LSD action when not accelerating... as soon as you accelerate, it is 100% locked cos of the dog style teeth...

if you realyl want a welded centre or spool, but also want to be able to legally drive aroudn the streets.. lockrite is great..
if you want progessive LSd action to go around corners... not so good..


or is it the one that disengages the outside wheel, providing all force to the inside wheel (or is that a detroit?).. that one would be bad for.. most things

what you could do, to make the truetrak more effective.. is to drag the brakes or handbrake when you are leaving the corner... that way, you are applying more force to the inside wheel, and thus transferring mor epower to the outside wheel

yup, thats the one.

HORNSBY DIFFS, has a framed picture on the wall of a dirty big black old camaro, from one of their customers, claiming to have removed a substaintial amount of time from their lap records, after fitting a LOCKRITE system, (could be just advert booshit tho )

but if all your wanting to do is skidz. a minispool/full spool or CIG is the way to go

im going to give my tru track another go this year, as ive done a bit more susp work, (fingers crossed )

[BigWorm]

+ reps for truetrac, I have one in both my cars, admitedly the celica hasn't seen much use but the cressy get's a good thrashing most of the time & to me is the perfect LSD. Smooth & quiet most of the time & cooks both tyres when ever asked of it.

Hey IN05NT, maybe your rear sway bar is too stiff, try running with it disconnected or try a thinner one.

[Draven]

I think this is just a case of you expecting something (full-lock) from a product that it is not designed to provide. the company that builds true-tracs build a separate line of full-lock diffs. The true track is designed for hard street/soft-med track driving. pay a diff shop $100 to weld up your diff for all the burnout goodness you could ever want.

[Sciflyer]

If you look at how a Truetrak (helical) diff works, it is not possible for it to "fail" in the way the OP describes

My bet is he actually has a worn or poorly adjusted clutch type LSD

[JustCallMeOrlando]

My car has been in a motorkhana, been thrown around on many twisty roads and a couple of decent burnouts in the few years I've had it. It's one part of the car I've never had any issues with.

I've never had it single wheel on me yet, no it doesn't just "lock up" like a clutch or locker type can, but it's not what it's designed to do. I'd much rather it do what I ask of it, make me have the most useful power I can through a corner.

[cambelt]

Well isnt the whole reason behind a torsen lsd a safer lsd for (girls) sorry inexperienced drivers . they were never meant to work like a clutch pack lsd
Dave

[Norbie]

I'm not sure if safety was a major consideration; an experienced driver can still get in all sorts of trouble with a TrueTrac in the wet. It's just a softer, more progressive LSD for those who don't want to do mad hektik skidz every time they turn a corner.

Or, if you prefer, an LSD for girls.

[JustCallMeOrlando]

Well isnt the whole reason behind a torsen lsd a safer lsd for (girls) sorry inexperienced drivers . they were never meant to work like a clutch pack lsd
Dave

It's designed to be the most neutral. A clutch LSD imparts more of its nature on the chassis, whereas the Torsen is barely noticed unless the car starts to wheelspin.

[sirbob]

I was led to believe that a torsen's main advantage was that you didnt need to replace clutches in the diff as you do with a clutch pack LSD?

[JustCallMeOrlando]

That is AN advantage, but they behave differently too.

[TheStitt]

thats the one and only reason I went for the torsen

[blaze86vic]

Torsen diffs outperforms any clutch based LSD on a road course, and there are no two ways about that. Clutch limited slips were a simple and economical method to have limited slip differentials, but are in the end not really great at any one thing. Great for an OEM limited slip for wet pavement and light duty, and mild performance. Torsen diffs are the best for race cars, and spools are best for drag cars while lockers are great for off-road vehicles.

Torsen diffs were created purely for performance, not for safety, not for noise, not for lack of clutches. Though those are coincidental benefits (except the safety thing, not sure how they would make anything safer)

The "safest" driveline would be a one wheel peel FWD car.